dify

dify/api/tests/fixtures/workflow/answer_end_with_text.yml

@@ -0,0 +1,112 @@
+app:
+  description: input any query, should output "prefix{{#sys.query#}}suffix"
+  icon: 🤖
+  icon_background: '#FFEAD5'
+  mode: advanced-chat
+  name: answer_end_with_text
+  use_icon_as_answer_icon: false
+dependencies: []
+kind: app
+version: 0.3.1
+workflow:
+  conversation_variables: []
+  environment_variables: []
+  features:
+    file_upload:
+      allowed_file_extensions:
+      - .JPG
+      - .JPEG
+      - .PNG
+      - .GIF
+      - .WEBP
+      - .SVG
+      allowed_file_types:
+      - image
+      allowed_file_upload_methods:
+      - local_file
+      - remote_url
+      enabled: false
+      fileUploadConfig:
+        audio_file_size_limit: 50
+        batch_count_limit: 5
+        file_size_limit: 15
+        image_file_size_limit: 10
+        video_file_size_limit: 100
+        workflow_file_upload_limit: 10
+      image:
+        enabled: false
+        number_limits: 3
+        transfer_methods:
+        - local_file
+        - remote_url
+      number_limits: 3
+    opening_statement: ''
+    retriever_resource:
+      enabled: true
+    sensitive_word_avoidance:
+      enabled: false
+    speech_to_text:
+      enabled: false
+    suggested_questions: []
+    suggested_questions_after_answer:
+      enabled: false
+    text_to_speech:
+      enabled: false
+      language: ''
+      voice: ''
+  graph:
+    edges:
+    - data:
+        isInLoop: false
+        sourceType: start
+        targetType: answer
+      id: 1755077165531-source-answer-target
+      source: '1755077165531'
+      sourceHandle: source
+      target: answer
+      targetHandle: target
+      type: custom
+      zIndex: 0
+    nodes:
+    - data:
+        desc: ''
+        selected: false
+        title: Start
+        type: start
+        variables: []
+      height: 54
+      id: '1755077165531'
+      position:
+        x: 80
+        y: 282
+      positionAbsolute:
+        x: 80
+        y: 282
+      sourcePosition: right
+      targetPosition: left
+      type: custom
+      width: 244
+    - data:
+        answer: prefix{{#sys.query#}}suffix
+        desc: ''
+        selected: true
+        title: Answer
+        type: answer
+        variables: []
+      height: 105
+      id: answer
+      position:
+        x: 384
+        y: 282
+      positionAbsolute:
+        x: 384
+        y: 282
+      selected: true
+      sourcePosition: right
+      targetPosition: left
+      type: custom
+      width: 244
+    viewport:
+      x: 178
+      y: 116
+      zoom: 1

dify/api/tests/fixtures/workflow/array_iteration_formatting_workflow.yml

@@ -0,0 +1,275 @@
+app:
+  description: 'This is a simple workflow contains a Iteration.
+
+
+    It doesn''t need any inputs, and will outputs:
+
+
+    ```
+
+    {"output": ["output: 1", "output: 2", "output: 3"]}
+
+    ```'
+  icon: 🤖
+  icon_background: '#FFEAD5'
+  mode: workflow
+  name: test_iteration
+  use_icon_as_answer_icon: false
+dependencies: []
+kind: app
+version: 0.3.1
+workflow:
+  conversation_variables: []
+  environment_variables: []
+  features:
+    file_upload:
+      allowed_file_extensions:
+      - .JPG
+      - .JPEG
+      - .PNG
+      - .GIF
+      - .WEBP
+      - .SVG
+      allowed_file_types:
+      - image
+      allowed_file_upload_methods:
+      - local_file
+      - remote_url
+      enabled: false
+      fileUploadConfig:
+        audio_file_size_limit: 50
+        batch_count_limit: 5
+        file_size_limit: 15
+        image_file_size_limit: 10
+        video_file_size_limit: 100
+        workflow_file_upload_limit: 10
+      image:
+        enabled: false
+        number_limits: 3
+        transfer_methods:
+        - local_file
+        - remote_url
+      number_limits: 3
+    opening_statement: ''
+    retriever_resource:
+      enabled: true
+    sensitive_word_avoidance:
+      enabled: false
+    speech_to_text:
+      enabled: false
+    suggested_questions: []
+    suggested_questions_after_answer:
+      enabled: false
+    text_to_speech:
+      enabled: false
+      language: ''
+      voice: ''
+  graph:
+    edges:
+    - data:
+        isInIteration: false
+        isInLoop: false
+        sourceType: start
+        targetType: code
+      id: 1754683427386-source-1754683442688-target
+      source: '1754683427386'
+      sourceHandle: source
+      target: '1754683442688'
+      targetHandle: target
+      type: custom
+      zIndex: 0
+    - data:
+        isInIteration: false
+        isInLoop: false
+        sourceType: code
+        targetType: iteration
+      id: 1754683442688-source-1754683430480-target
+      source: '1754683442688'
+      sourceHandle: source
+      target: '1754683430480'
+      targetHandle: target
+      type: custom
+      zIndex: 0
+    - data:
+        isInIteration: true
+        isInLoop: false
+        iteration_id: '1754683430480'
+        sourceType: iteration-start
+        targetType: template-transform
+      id: 1754683430480start-source-1754683458843-target
+      source: 1754683430480start
+      sourceHandle: source
+      target: '1754683458843'
+      targetHandle: target
+      type: custom
+      zIndex: 1002
+    - data:
+        isInIteration: false
+        isInLoop: false
+        sourceType: iteration
+        targetType: end
+      id: 1754683430480-source-1754683480778-target
+      source: '1754683430480'
+      sourceHandle: source
+      target: '1754683480778'
+      targetHandle: target
+      type: custom
+      zIndex: 0
+    nodes:
+    - data:
+        desc: ''
+        selected: false
+        title: Start
+        type: start
+        variables: []
+      height: 54
+      id: '1754683427386'
+      position:
+        x: 80
+        y: 282
+      positionAbsolute:
+        x: 80
+        y: 282
+      sourcePosition: right
+      targetPosition: left
+      type: custom
+      width: 244
+    - data:
+        desc: ''
+        error_handle_mode: terminated
+        height: 178
+        is_parallel: false
+        iterator_input_type: array[number]
+        iterator_selector:
+        - '1754683442688'
+        - result
+        output_selector:
+        - '1754683458843'
+        - output
+        output_type: array[string]
+        parallel_nums: 10
+        selected: false
+        start_node_id: 1754683430480start
+        title: Iteration
+        type: iteration
+        width: 388
+      height: 178
+      id: '1754683430480'
+      position:
+        x: 684
+        y: 282
+      positionAbsolute:
+        x: 684
+        y: 282
+      selected: false
+      sourcePosition: right
+      targetPosition: left
+      type: custom
+      width: 388
+      zIndex: 1
+    - data:
+        desc: ''
+        isInIteration: true
+        selected: false
+        title: ''
+        type: iteration-start
+      draggable: false
+      height: 48
+      id: 1754683430480start
+      parentId: '1754683430480'
+      position:
+        x: 24
+        y: 68
+      positionAbsolute:
+        x: 708
+        y: 350
+      selectable: false
+      sourcePosition: right
+      targetPosition: left
+      type: custom-iteration-start
+      width: 44
+      zIndex: 1002
+    - data:
+        code: "\ndef main() -> dict:\n    return {\n        \"result\": [1, 2, 3],\n\
+          \    }\n"
+        code_language: python3
+        desc: ''
+        outputs:
+          result:
+            children: null
+            type: array[number]
+        selected: false
+        title: Code
+        type: code
+        variables: []
+      height: 54
+      id: '1754683442688'
+      position:
+        x: 384
+        y: 282
+      positionAbsolute:
+        x: 384
+        y: 282
+      selected: false
+      sourcePosition: right
+      targetPosition: left
+      type: custom
+      width: 244
+    - data:
+        desc: ''
+        isInIteration: true
+        isInLoop: false
+        iteration_id: '1754683430480'
+        selected: false
+        template: 'output: {{ arg1 }}'
+        title: Template
+        type: template-transform
+        variables:
+        - value_selector:
+          - '1754683430480'
+          - item
+          value_type: string
+          variable: arg1
+      height: 54
+      id: '1754683458843'
+      parentId: '1754683430480'
+      position:
+        x: 128
+        y: 68
+      positionAbsolute:
+        x: 812
+        y: 350
+      selected: false
+      sourcePosition: right
+      targetPosition: left
+      type: custom
+      width: 244
+      zIndex: 1002
+    - data:
+        desc: ''
+        outputs:
+        - value_selector:
+          - '1754683430480'
+          - output
+          value_type: array[string]
+          variable: output
+        selected: false
+        title: End
+        type: end
+      height: 90
+      id: '1754683480778'
+      position:
+        x: 1132
+        y: 282
+      positionAbsolute:
+        x: 1132
+        y: 282
+      selected: true
+      sourcePosition: right
+      targetPosition: left
+      type: custom
+      width: 244
+    viewport:
+      x: -476
+      y: 3
+      zoom: 1

dify/api/tests/fixtures/workflow/basic_chatflow.yml

@@ -0,0 +1,102 @@
+app:
+  description: Simple chatflow contains only 1 LLM node.
+  icon: 🤖
+  icon_background: '#FFEAD5'
+  mode: advanced-chat
+  name: basic_chatflow
+  use_icon_as_answer_icon: false
+dependencies: []
+kind: app
+version: 0.3.1
+workflow:
+  conversation_variables: []
+  environment_variables: []
+  features:
+    file_upload: {}
+    opening_statement: ''
+    retriever_resource:
+      enabled: true
+    sensitive_word_avoidance:
+      enabled: false
+    speech_to_text:
+      enabled: false
+    suggested_questions: []
+    suggested_questions_after_answer:
+      enabled: false
+    text_to_speech:
+      enabled: false
+      language: ''
+      voice: ''
+  graph:
+    edges:
+    - id: 1755189262236-llm
+      source: '1755189262236'
+      sourceHandle: source
+      target: llm
+      targetHandle: target
+    - id: llm-answer
+      source: llm
+      sourceHandle: source
+      target: answer
+      targetHandle: target
+    nodes:
+    - data:
+        desc: ''
+        title: Start
+        type: start
+        variables: []
+      id: '1755189262236'
+      position:
+        x: 80
+        y: 282
+      sourcePosition: right
+      targetPosition: left
+      type: custom
+    - data:
+        context:
+          enabled: false
+          variable_selector: []
+        desc: ''
+        memory:
+          query_prompt_template: '{{#sys.query#}}
+
+
+            {{#sys.files#}}'
+          window:
+            enabled: false
+            size: 10
+        model:
+          completion_params:
+            temperature: 0.7
+          mode: chat
+          name: ''
+          provider: ''
+        prompt_template:
+        - role: system
+          text: ''
+        selected: true
+        title: LLM
+        type: llm
+        variables: []
+        vision:
+          enabled: false
+      id: llm
+      position:
+        x: 380
+        y: 282
+      sourcePosition: right
+      targetPosition: left
+      type: custom
+    - data:
+        answer: '{{#llm.text#}}'
+        desc: ''
+        title: Answer
+        type: answer
+        variables: []
+      id: answer
+      position:
+        x: 680
+        y: 282
+      sourcePosition: right
+      targetPosition: left
+      type: custom

dify/api/tests/fixtures/workflow/basic_llm_chat_workflow.yml

@@ -0,0 +1,156 @@
+app:
+  description: 'Workflow with LLM node for testing auto-mock'
+  icon: 🤖
+  icon_background: '#FFEAD5'
+  mode: workflow
+  name: llm-simple
+  use_icon_as_answer_icon: false
+dependencies: []
+kind: app
+version: 0.3.1
+workflow:
+  conversation_variables: []
+  environment_variables: []
+  features:
+    file_upload:
+      enabled: false
+    opening_statement: ''
+    retriever_resource:
+      enabled: false
+    sensitive_word_avoidance:
+      enabled: false
+    speech_to_text:
+      enabled: false
+    suggested_questions: []
+    suggested_questions_after_answer:
+      enabled: false
+    text_to_speech:
+      enabled: false
+  graph:
+    edges:
+    - data:
+        isInIteration: false
+        isInLoop: false
+        sourceType: start
+        targetType: llm
+      id: start-to-llm
+      source: 'start_node'
+      sourceHandle: source
+      target: 'llm_node'
+      targetHandle: target
+      type: custom
+      zIndex: 0
+    - data:
+        isInIteration: false
+        isInLoop: false
+        sourceType: llm
+        targetType: end
+      id: llm-to-end
+      source: 'llm_node'
+      sourceHandle: source
+      target: 'end_node'
+      targetHandle: target
+      type: custom
+      zIndex: 0
+    nodes:
+    - data:
+        desc: ''
+        selected: false
+        title: Start
+        type: start
+        variables:
+        - label: query
+          max_length: null
+          options: []
+          required: true
+          type: text-input
+          variable: query
+      height: 90
+      id: 'start_node'
+      position:
+        x: 30
+        y: 227
+      positionAbsolute:
+        x: 30
+        y: 227
+      selected: false
+      sourcePosition: right
+      targetPosition: left
+      type: custom
+      width: 244
+    - data:
+        desc: 'LLM Node for testing'
+        title: LLM
+        type: llm
+        model:
+          provider: openai
+          name: gpt-3.5-turbo
+          mode: chat
+        prompt_template:
+          - role: system
+            text: You are a helpful assistant.
+          - role: user
+            text: '{{#start_node.query#}}'
+        vision:
+          enabled: false
+          configs:
+            variable_selector: []
+        memory:
+          enabled: false
+          window:
+            enabled: false
+            size: 50
+        context:
+          enabled: false
+          variable_selector: []
+        structured_output:
+          enabled: false
+        retry_config:
+          enabled: false
+          max_retries: 1
+          retry_interval: 1000
+          exponential_backoff:
+            enabled: false
+            multiplier: 2
+            max_interval: 10000
+      height: 90
+      id: 'llm_node'
+      position:
+        x: 334
+        y: 227
+      positionAbsolute:
+        x: 334
+        y: 227
+      selected: false
+      sourcePosition: right
+      targetPosition: left
+      type: custom
+      width: 244
+    - data:
+        desc: ''
+        outputs:
+        - value_selector:
+          - 'llm_node'
+          - text
+          value_type: string
+          variable: answer
+        selected: false
+        title: End
+        type: end
+      height: 90
+      id: 'end_node'
+      position:
+        x: 638
+        y: 227
+      positionAbsolute:
+        x: 638
+        y: 227
+      selected: false
+      sourcePosition: right
+      targetPosition: left
+      type: custom
+      width: 244
+    viewport:
+      x: 0
+      y: 0
+      zoom: 0.7

dify/api/tests/fixtures/workflow/chatflow_time_tool_static_output_workflow.yml

@@ -0,0 +1,369 @@
+app:
+  description: this is a simple chatflow that should output 'hello, dify!' with any
+    input
+  icon: 🤖
+  icon_background: '#FFEAD5'
+  mode: advanced-chat
+  name: test_tool_in_chatflow
+  use_icon_as_answer_icon: false
+dependencies: []
+kind: app
+version: 0.3.1
+workflow:
+  conversation_variables: []
+  environment_variables: []
+  features:
+    file_upload:
+      allowed_file_extensions:
+      - .JPG
+      - .JPEG
+      - .PNG
+      - .GIF
+      - .WEBP
+      - .SVG
+      allowed_file_types:
+      - image
+      allowed_file_upload_methods:
+      - local_file
+      - remote_url
+      enabled: false
+      fileUploadConfig:
+        audio_file_size_limit: 50
+        batch_count_limit: 5
+        file_size_limit: 15
+        image_file_size_limit: 10
+        video_file_size_limit: 100
+        workflow_file_upload_limit: 10
+      image:
+        enabled: false
+        number_limits: 3
+        transfer_methods:
+        - local_file
+        - remote_url
+      number_limits: 3
+    opening_statement: ''
+    retriever_resource:
+      enabled: true
+    sensitive_word_avoidance:
+      enabled: false
+    speech_to_text:
+      enabled: false
+    suggested_questions: []
+    suggested_questions_after_answer:
+      enabled: false
+    text_to_speech:
+      enabled: false
+      language: ''
+      voice: ''
+  graph:
+    edges:
+    - data:
+        isInIteration: false
+        isInLoop: false
+        sourceType: start
+        targetType: tool
+      id: 1754336720803-source-1754336729904-target
+      source: '1754336720803'
+      sourceHandle: source
+      target: '1754336729904'
+      targetHandle: target
+      type: custom
+      zIndex: 0
+    - data:
+        isInIteration: false
+        isInLoop: false
+        sourceType: tool
+        targetType: template-transform
+      id: 1754336729904-source-1754336733947-target
+      source: '1754336729904'
+      sourceHandle: source
+      target: '1754336733947'
+      targetHandle: target
+      type: custom
+      zIndex: 0
+    - data:
+        isInLoop: false
+        sourceType: template-transform
+        targetType: answer
+      id: 1754336733947-source-answer-target
+      source: '1754336733947'
+      sourceHandle: source
+      target: answer
+      targetHandle: target
+      type: custom
+      zIndex: 0
+    nodes:
+    - data:
+        desc: ''
+        selected: false
+        title: Start
+        type: start
+        variables: []
+      height: 54
+      id: '1754336720803'
+      position:
+        x: 30
+        y: 258
+      positionAbsolute:
+        x: 30
+        y: 258
+      sourcePosition: right
+      targetPosition: left
+      type: custom
+      width: 244
+    - data:
+        answer: '{{#1754336733947.output#}}'
+        desc: ''
+        selected: false
+        title: Answer
+        type: answer
+        variables: []
+      height: 105
+      id: answer
+      position:
+        x: 942
+        y: 258
+      positionAbsolute:
+        x: 942
+        y: 258
+      selected: false
+      sourcePosition: right
+      targetPosition: left
+      type: custom
+      width: 244
+    - data:
+        desc: ''
+        is_team_authorization: true
+        output_schema: null
+        paramSchemas:
+        - auto_generate: null
+          default: '%Y-%m-%d %H:%M:%S'
+          form: form
+          human_description:
+            en_US: Time format in strftime standard.
+            ja_JP: Time format in strftime standard.
+            pt_BR: Time format in strftime standard.
+            zh_Hans: strftime 标准的时间格式。
+          label:
+            en_US: Format
+            ja_JP: Format
+            pt_BR: Format
+            zh_Hans: 格式
+          llm_description: null
+          max: null
+          min: null
+          name: format
+          options: []
+          placeholder: null
+          precision: null
+          required: false
+          scope: null
+          template: null
+          type: string
+        - auto_generate: null
+          default: UTC
+          form: form
+          human_description:
+            en_US: Timezone
+            ja_JP: Timezone
+            pt_BR: Timezone
+            zh_Hans: 时区
+          label:
+            en_US: Timezone
+            ja_JP: Timezone
+            pt_BR: Timezone
+            zh_Hans: 时区
+          llm_description: null
+          max: null
+          min: null
+          name: timezone
+          options:
+          - icon: null
+            label:
+              en_US: UTC
+              ja_JP: UTC
+              pt_BR: UTC
+              zh_Hans: UTC
+            value: UTC
+          - icon: null
+            label:
+              en_US: America/New_York
+              ja_JP: America/New_York
+              pt_BR: America/New_York
+              zh_Hans: 美洲/纽约
+            value: America/New_York
+          - icon: null
+            label:
+              en_US: America/Los_Angeles
+              ja_JP: America/Los_Angeles
+              pt_BR: America/Los_Angeles
+              zh_Hans: 美洲/洛杉矶
+            value: America/Los_Angeles
+          - icon: null
+            label:
+              en_US: America/Chicago
+              ja_JP: America/Chicago
+              pt_BR: America/Chicago
+              zh_Hans: 美洲/芝加哥
+            value: America/Chicago
+          - icon: null
+            label:
+              en_US: America/Sao_Paulo
+              ja_JP: America/Sao_Paulo
+              pt_BR: América/São Paulo
+              zh_Hans: 美洲/圣保罗
+            value: America/Sao_Paulo
+          - icon: null
+            label:
+              en_US: Asia/Shanghai
+              ja_JP: Asia/Shanghai
+              pt_BR: Asia/Shanghai
+              zh_Hans: 亚洲/上海
+            value: Asia/Shanghai
+          - icon: null
+            label:
+              en_US: Asia/Ho_Chi_Minh
+              ja_JP: Asia/Ho_Chi_Minh
+              pt_BR: Ásia/Ho Chi Minh
+              zh_Hans: 亚洲/胡志明市
+            value: Asia/Ho_Chi_Minh
+          - icon: null
+            label:
+              en_US: Asia/Tokyo
+              ja_JP: Asia/Tokyo
+              pt_BR: Asia/Tokyo
+              zh_Hans: 亚洲/东京
+            value: Asia/Tokyo
+          - icon: null
+            label:
+              en_US: Asia/Dubai
+              ja_JP: Asia/Dubai
+              pt_BR: Asia/Dubai
+              zh_Hans: 亚洲/迪拜
+            value: Asia/Dubai
+          - icon: null
+            label:
+              en_US: Asia/Kolkata
+              ja_JP: Asia/Kolkata
+              pt_BR: Asia/Kolkata
+              zh_Hans: 亚洲/加尔各答
+            value: Asia/Kolkata
+          - icon: null
+            label:
+              en_US: Asia/Seoul
+              ja_JP: Asia/Seoul
+              pt_BR: Asia/Seoul
+              zh_Hans: 亚洲/首尔
+            value: Asia/Seoul
+          - icon: null
+            label:
+              en_US: Asia/Singapore
+              ja_JP: Asia/Singapore
+              pt_BR: Asia/Singapore
+              zh_Hans: 亚洲/新加坡
+            value: Asia/Singapore
+          - icon: null
+            label:
+              en_US: Europe/London
+              ja_JP: Europe/London
+              pt_BR: Europe/London
+              zh_Hans: 欧洲/伦敦
+            value: Europe/London
+          - icon: null
+            label:
+              en_US: Europe/Berlin
+              ja_JP: Europe/Berlin
+              pt_BR: Europe/Berlin
+              zh_Hans: 欧洲/柏林
+            value: Europe/Berlin
+          - icon: null
+            label:
+              en_US: Europe/Moscow
+              ja_JP: Europe/Moscow
+              pt_BR: Europe/Moscow
+              zh_Hans: 欧洲/莫斯科
+            value: Europe/Moscow
+          - icon: null
+            label:
+              en_US: Australia/Sydney
+              ja_JP: Australia/Sydney
+              pt_BR: Australia/Sydney
+              zh_Hans: 澳大利亚/悉尼
+            value: Australia/Sydney
+          - icon: null
+            label:
+              en_US: Pacific/Auckland
+              ja_JP: Pacific/Auckland
+              pt_BR: Pacific/Auckland
+              zh_Hans: 太平洋/奥克兰
+            value: Pacific/Auckland
+          - icon: null
+            label:
+              en_US: Africa/Cairo
+              ja_JP: Africa/Cairo
+              pt_BR: Africa/Cairo
+              zh_Hans: 非洲/开罗
+            value: Africa/Cairo
+          placeholder: null
+          precision: null
+          required: false
+          scope: null
+          template: null
+          type: select
+        params:
+          format: ''
+          timezone: ''
+        provider_id: time
+        provider_name: time
+        provider_type: builtin
+        selected: false
+        title: Current Time
+        tool_configurations:
+          format:
+            type: mixed
+            value: '%Y-%m-%d %H:%M:%S'
+          timezone:
+            type: constant
+            value: UTC
+        tool_description: A tool for getting the current time.
+        tool_label: Current Time
+        tool_name: current_time
+        tool_node_version: '2'
+        tool_parameters: {}
+        type: tool
+      height: 116
+      id: '1754336729904'
+      position:
+        x: 334
+        y: 258
+      positionAbsolute:
+        x: 334
+        y: 258
+      sourcePosition: right
+      targetPosition: left
+      type: custom
+      width: 244
+    - data:
+        desc: ''
+        selected: false
+        template: hello, dify!
+        title: Template
+        type: template-transform
+        variables: []
+      height: 54
+      id: '1754336733947'
+      position:
+        x: 638
+        y: 258
+      positionAbsolute:
+        x: 638
+        y: 258
+      selected: true
+      sourcePosition: right
+      targetPosition: left
+      type: custom
+      width: 244
+    viewport:
+      x: -321.29999999999995
+      y: 225.65
+      zoom: 0.7

dify/api/tests/fixtures/workflow/conditional_hello_branching_workflow.yml

@@ -0,0 +1,202 @@
+app:
+  description: 'receive a query, output {"true": query} if query contains ''hello'',
+    otherwise, output {"false": query}.'
+  icon: 🤖
+  icon_background: '#FFEAD5'
+  mode: workflow
+  name: if-else
+  use_icon_as_answer_icon: false
+dependencies: []
+kind: app
+version: 0.3.1
+workflow:
+  conversation_variables: []
+  environment_variables: []
+  features:
+    file_upload:
+      allowed_file_extensions:
+      - .JPG
+      - .JPEG
+      - .PNG
+      - .GIF
+      - .WEBP
+      - .SVG
+      allowed_file_types:
+      - image
+      allowed_file_upload_methods:
+      - local_file
+      - remote_url
+      enabled: false
+      fileUploadConfig:
+        audio_file_size_limit: 50
+        batch_count_limit: 5
+        file_size_limit: 15
+        image_file_size_limit: 10
+        video_file_size_limit: 100
+        workflow_file_upload_limit: 10
+      image:
+        enabled: false
+        number_limits: 3
+        transfer_methods:
+        - local_file
+        - remote_url
+      number_limits: 3
+    opening_statement: ''
+    retriever_resource:
+      enabled: true
+    sensitive_word_avoidance:
+      enabled: false
+    speech_to_text:
+      enabled: false
+    suggested_questions: []
+    suggested_questions_after_answer:
+      enabled: false
+    text_to_speech:
+      enabled: false
+      language: ''
+      voice: ''
+  graph:
+    edges:
+    - data:
+        isInIteration: false
+        isInLoop: false
+        sourceType: start
+        targetType: if-else
+      id: 1754154032319-source-1754217359748-target
+      source: '1754154032319'
+      sourceHandle: source
+      target: '1754217359748'
+      targetHandle: target
+      type: custom
+      zIndex: 0
+    - data:
+        isInLoop: false
+        sourceType: if-else
+        targetType: end
+      id: 1754217359748-true-1754154034161-target
+      source: '1754217359748'
+      sourceHandle: 'true'
+      target: '1754154034161'
+      targetHandle: target
+      type: custom
+      zIndex: 0
+    - data:
+        isInIteration: false
+        isInLoop: false
+        sourceType: if-else
+        targetType: end
+      id: 1754217359748-false-1754217363584-target
+      source: '1754217359748'
+      sourceHandle: 'false'
+      target: '1754217363584'
+      targetHandle: target
+      type: custom
+      zIndex: 0
+    nodes:
+    - data:
+        desc: ''
+        selected: false
+        title: Start
+        type: start
+        variables:
+        - label: query
+          max_length: null
+          options: []
+          required: true
+          type: text-input
+          variable: query
+      height: 90
+      id: '1754154032319'
+      position:
+        x: 30
+        y: 263
+      positionAbsolute:
+        x: 30
+        y: 263
+      selected: false
+      sourcePosition: right
+      targetPosition: left
+      type: custom
+      width: 244
+    - data:
+        desc: ''
+        outputs:
+        - value_selector:
+          - '1754154032319'
+          - query
+          value_type: string
+          variable: 'true'
+        selected: false
+        title: End
+        type: end
+      height: 90
+      id: '1754154034161'
+      position:
+        x: 766.1428571428571
+        y: 161.35714285714283
+      positionAbsolute:
+        x: 766.1428571428571
+        y: 161.35714285714283
+      selected: false
+      sourcePosition: right
+      targetPosition: left
+      type: custom
+      width: 244
+    - data:
+        cases:
+        - case_id: 'true'
+          conditions:
+          - comparison_operator: contains
+            id: 8c8a76f8-d3c2-4203-ab52-87b0abf486b9
+            value: hello
+            varType: string
+            variable_selector:
+            - '1754154032319'
+            - query
+          id: 'true'
+          logical_operator: and
+        desc: ''
+        selected: false
+        title: IF/ELSE
+        type: if-else
+      height: 126
+      id: '1754217359748'
+      position:
+        x: 364
+        y: 263
+      positionAbsolute:
+        x: 364
+        y: 263
+      selected: false
+      sourcePosition: right
+      targetPosition: left
+      type: custom
+      width: 244
+    - data:
+        desc: ''
+        outputs:
+        - value_selector:
+          - '1754154032319'
+          - query
+          value_type: string
+          variable: 'false'
+        selected: false
+        title: End 2
+        type: end
+      height: 90
+      id: '1754217363584'
+      position:
+        x: 766.1428571428571
+        y: 363
+      positionAbsolute:
+        x: 766.1428571428571
+        y: 363
+      selected: true
+      sourcePosition: right
+      targetPosition: left
+      type: custom
+      width: 244
+    viewport:
+      x: 0
+      y: 0
+      zoom: 0.7

dify/api/tests/fixtures/workflow/conditional_parallel_code_execution_workflow.yml

@@ -0,0 +1,324 @@
+app:
+  description: 'This workflow receive a ''switch'' number.
+
+    If switch == 1, output should be {"1": "Code 1", "2": "Code 2", "3": null},
+
+    otherwise, output should be {"1": null, "2": "Code 2", "3": "Code 3"}.'
+  icon: 🤖
+  icon_background: '#FFEAD5'
+  mode: workflow
+  name: parallel_branch_test
+  use_icon_as_answer_icon: false
+dependencies: []
+kind: app
+version: 0.3.1
+workflow:
+  conversation_variables: []
+  environment_variables: []
+  features:
+    file_upload:
+      allowed_file_extensions:
+      - .JPG
+      - .JPEG
+      - .PNG
+      - .GIF
+      - .WEBP
+      - .SVG
+      allowed_file_types:
+      - image
+      allowed_file_upload_methods:
+      - local_file
+      - remote_url
+      enabled: false
+      fileUploadConfig:
+        audio_file_size_limit: 50
+        batch_count_limit: 5
+        file_size_limit: 15
+        image_file_size_limit: 10
+        video_file_size_limit: 100
+        workflow_file_upload_limit: 10
+      image:
+        enabled: false
+        number_limits: 3
+        transfer_methods:
+        - local_file
+        - remote_url
+      number_limits: 3
+    opening_statement: ''
+    retriever_resource:
+      enabled: true
+    sensitive_word_avoidance:
+      enabled: false
+    speech_to_text:
+      enabled: false
+    suggested_questions: []
+    suggested_questions_after_answer:
+      enabled: false
+    text_to_speech:
+      enabled: false
+      language: ''
+      voice: ''
+  graph:
+    edges:
+    - data:
+        isInIteration: false
+        isInLoop: false
+        sourceType: start
+        targetType: if-else
+      id: 1754230715804-source-1754230718377-target
+      source: '1754230715804'
+      sourceHandle: source
+      target: '1754230718377'
+      targetHandle: target
+      type: custom
+      zIndex: 0
+    - data:
+        isInIteration: false
+        isInLoop: false
+        sourceType: if-else
+        targetType: code
+      id: 1754230718377-true-1754230738434-target
+      source: '1754230718377'
+      sourceHandle: 'true'
+      target: '1754230738434'
+      targetHandle: target
+      type: custom
+      zIndex: 0
+    - data:
+        isInLoop: false
+        sourceType: if-else
+        targetType: code
+      id: 1754230718377-true-17542307611100-target
+      source: '1754230718377'
+      sourceHandle: 'true'
+      target: '17542307611100'
+      targetHandle: target
+      type: custom
+      zIndex: 0
+    - data:
+        isInLoop: false
+        sourceType: if-else
+        targetType: code
+      id: 1754230718377-false-17542307611100-target
+      source: '1754230718377'
+      sourceHandle: 'false'
+      target: '17542307611100'
+      targetHandle: target
+      type: custom
+      zIndex: 0
+    - data:
+        isInLoop: false
+        sourceType: if-else
+        targetType: code
+      id: 1754230718377-false-17542307643480-target
+      source: '1754230718377'
+      sourceHandle: 'false'
+      target: '17542307643480'
+      targetHandle: target
+      type: custom
+      zIndex: 0
+    - data:
+        isInLoop: false
+        sourceType: code
+        targetType: end
+      id: 1754230738434-source-1754230796033-target
+      source: '1754230738434'
+      sourceHandle: source
+      target: '1754230796033'
+      targetHandle: target
+      type: custom
+      zIndex: 0
+    - data:
+        isInLoop: false
+        sourceType: code
+        targetType: end
+      id: 17542307611100-source-1754230796033-target
+      source: '17542307611100'
+      sourceHandle: source
+      target: '1754230796033'
+      targetHandle: target
+      type: custom
+      zIndex: 0
+    - data:
+        isInLoop: false
+        sourceType: code
+        targetType: end
+      id: 17542307643480-source-1754230796033-target
+      source: '17542307643480'
+      sourceHandle: source
+      target: '1754230796033'
+      targetHandle: target
+      type: custom
+      zIndex: 0
+    nodes:
+    - data:
+        desc: ''
+        selected: false
+        title: Start
+        type: start
+        variables:
+        - label: switch
+          max_length: 48
+          options: []
+          required: true
+          type: number
+          variable: switch
+      height: 90
+      id: '1754230715804'
+      position:
+        x: 80
+        y: 282
+      positionAbsolute:
+        x: 80
+        y: 282
+      selected: false
+      sourcePosition: right
+      targetPosition: left
+      type: custom
+      width: 244
+    - data:
+        cases:
+        - case_id: 'true'
+          conditions:
+          - comparison_operator: '='
+            id: bb59bde2-e97f-4b38-ba77-d2ac7c6805d3
+            value: '1'
+            varType: number
+            variable_selector:
+            - '1754230715804'
+            - switch
+          id: 'true'
+          logical_operator: and
+        desc: ''
+        selected: false
+        title: IF/ELSE
+        type: if-else
+      height: 126
+      id: '1754230718377'
+      position:
+        x: 384
+        y: 282
+      positionAbsolute:
+        x: 384
+        y: 282
+      selected: false
+      sourcePosition: right
+      targetPosition: left
+      type: custom
+      width: 244
+    - data:
+        code: "\ndef main() -> dict:\n    return {\n        \"result\": \"Code 1\"\
+          ,\n    }\n"
+        code_language: python3
+        desc: ''
+        outputs:
+          result:
+            children: null
+            type: string
+        selected: false
+        title: Code 1
+        type: code
+        variables: []
+      height: 54
+      id: '1754230738434'
+      position:
+        x: 701
+        y: 225
+      positionAbsolute:
+        x: 701
+        y: 225
+      selected: false
+      sourcePosition: right
+      targetPosition: left
+      type: custom
+      width: 244
+    - data:
+        code: "\ndef main() -> dict:\n    return {\n        \"result\": \"Code 2\"\
+          ,\n    }\n"
+        code_language: python3
+        desc: ''
+        outputs:
+          result:
+            children: null
+            type: string
+        selected: false
+        title: Code 2
+        type: code
+        variables: []
+      height: 54
+      id: '17542307611100'
+      position:
+        x: 701
+        y: 353
+      positionAbsolute:
+        x: 701
+        y: 353
+      selected: false
+      sourcePosition: right
+      targetPosition: left
+      type: custom
+      width: 244
+    - data:
+        code: "\ndef main() -> dict:\n    return {\n        \"result\": \"Code 3\"\
+          ,\n    }\n"
+        code_language: python3
+        desc: ''
+        outputs:
+          result:
+            children: null
+            type: string
+        selected: false
+        title: Code 3
+        type: code
+        variables: []
+      height: 54
+      id: '17542307643480'
+      position:
+        x: 701
+        y: 483
+      positionAbsolute:
+        x: 701
+        y: 483
+      selected: false
+      sourcePosition: right
+      targetPosition: left
+      type: custom
+      width: 244
+    - data:
+        desc: ''
+        outputs:
+        - value_selector:
+          - '1754230738434'
+          - result
+          value_type: string
+          variable: '1'
+        - value_selector:
+          - '17542307611100'
+          - result
+          value_type: string
+          variable: '2'
+        - value_selector:
+          - '17542307643480'
+          - result
+          value_type: string
+          variable: '3'
+        selected: false
+        title: End
+        type: end
+      height: 142
+      id: '1754230796033'
+      position:
+        x: 1061
+        y: 354
+      positionAbsolute:
+        x: 1061
+        y: 354
+      selected: true
+      sourcePosition: right
+      targetPosition: left
+      type: custom
+      width: 244
+    viewport:
+      x: -268.3522609908596
+      y: 37.16616977316119
+      zoom: 0.8271184022267809

dify/api/tests/fixtures/workflow/conditional_streaming_vs_template_workflow.yml

@@ -0,0 +1,363 @@
+app:
+  description: 'This workflow receive ''query'' and ''blocking''.
+
+
+    if blocking == 1, the workflow will outputs the result once(because it from the
+    Template Node).
+
+    otherwise, the workflow will outputs the result streaming.'
+  icon: 🤖
+  icon_background: '#FFEAD5'
+  mode: workflow
+  name: test_streaming_output
+  use_icon_as_answer_icon: false
+dependencies:
+- current_identifier: null
+  type: marketplace
+  value:
+    marketplace_plugin_unique_identifier: langgenius/openai:0.0.30@1f5ecdef108418a467e54da2dcf5de2cf22b47632abc8633194ac9fb96317ede
+kind: app
+version: 0.3.1
+workflow:
+  conversation_variables: []
+  environment_variables: []
+  features:
+    file_upload:
+      allowed_file_extensions:
+      - .JPG
+      - .JPEG
+      - .PNG
+      - .GIF
+      - .WEBP
+      - .SVG
+      allowed_file_types:
+      - image
+      allowed_file_upload_methods:
+      - local_file
+      - remote_url
+      enabled: false
+      fileUploadConfig:
+        audio_file_size_limit: 50
+        batch_count_limit: 5
+        file_size_limit: 15
+        image_file_size_limit: 10
+        video_file_size_limit: 100
+        workflow_file_upload_limit: 10
+      image:
+        enabled: false
+        number_limits: 3
+        transfer_methods:
+        - local_file
+        - remote_url
+      number_limits: 3
+    opening_statement: ''
+    retriever_resource:
+      enabled: true
+    sensitive_word_avoidance:
+      enabled: false
+    speech_to_text:
+      enabled: false
+    suggested_questions: []
+    suggested_questions_after_answer:
+      enabled: false
+    text_to_speech:
+      enabled: false
+      language: ''
+      voice: ''
+  graph:
+    edges:
+    - data:
+        isInIteration: false
+        isInLoop: false
+        sourceType: start
+        targetType: if-else
+      id: 1754239042599-source-1754296900311-target
+      source: '1754239042599'
+      sourceHandle: source
+      target: '1754296900311'
+      targetHandle: target
+      type: custom
+      zIndex: 0
+    - data:
+        isInLoop: false
+        sourceType: if-else
+        targetType: llm
+      id: 1754296900311-true-1754239044238-target
+      selected: false
+      source: '1754296900311'
+      sourceHandle: 'true'
+      target: '1754239044238'
+      targetHandle: target
+      type: custom
+      zIndex: 0
+    - data:
+        isInIteration: false
+        isInLoop: false
+        sourceType: llm
+        targetType: template-transform
+      id: 1754239044238-source-1754296914925-target
+      selected: false
+      source: '1754239044238'
+      sourceHandle: source
+      target: '1754296914925'
+      targetHandle: target
+      type: custom
+      zIndex: 0
+    - data:
+        isInIteration: false
+        isInLoop: false
+        sourceType: template-transform
+        targetType: end
+      id: 1754296914925-source-1754239058707-target
+      selected: false
+      source: '1754296914925'
+      sourceHandle: source
+      target: '1754239058707'
+      targetHandle: target
+      type: custom
+      zIndex: 0
+    - data:
+        isInLoop: false
+        sourceType: if-else
+        targetType: llm
+      id: 1754296900311-false-17542969329740-target
+      source: '1754296900311'
+      sourceHandle: 'false'
+      target: '17542969329740'
+      targetHandle: target
+      type: custom
+      zIndex: 0
+    - data:
+        isInIteration: false
+        isInLoop: false
+        sourceType: llm
+        targetType: end
+      id: 17542969329740-source-1754296943402-target
+      source: '17542969329740'
+      sourceHandle: source
+      target: '1754296943402'
+      targetHandle: target
+      type: custom
+      zIndex: 0
+    nodes:
+    - data:
+        desc: ''
+        selected: false
+        title: Start
+        type: start
+        variables:
+        - label: query
+          max_length: null
+          options: []
+          required: true
+          type: text-input
+          variable: query
+        - label: blocking
+          max_length: 48
+          options: []
+          required: true
+          type: number
+          variable: blocking
+      height: 116
+      id: '1754239042599'
+      position:
+        x: 80
+        y: 282
+      positionAbsolute:
+        x: 80
+        y: 282
+      selected: false
+      sourcePosition: right
+      targetPosition: left
+      type: custom
+      width: 244
+    - data:
+        context:
+          enabled: false
+          variable_selector: []
+        desc: ''
+        model:
+          completion_params:
+            temperature: 0.7
+          mode: chat
+          name: gpt-4o
+          provider: langgenius/openai/openai
+        prompt_template:
+        - id: 11c2b96f-7c78-4587-985f-b8addf8825ec
+          role: system
+          text: ''
+        - id: e3b2a1be-f2ad-4d63-bf0f-c4d8cc5189f1
+          role: user
+          text: '{{#1754239042599.query#}}'
+        selected: false
+        title: LLM
+        type: llm
+        variables: []
+        vision:
+          enabled: false
+      height: 90
+      id: '1754239044238'
+      position:
+        x: 684
+        y: 282
+      positionAbsolute:
+        x: 684
+        y: 282
+      selected: false
+      sourcePosition: right
+      targetPosition: left
+      type: custom
+      width: 244
+    - data:
+        desc: ''
+        outputs:
+        - value_selector:
+          - '1754239042599'
+          - query
+          value_type: string
+          variable: query
+        - value_selector:
+          - '1754296914925'
+          - output
+          value_type: string
+          variable: text
+        selected: false
+        title: End
+        type: end
+      height: 116
+      id: '1754239058707'
+      position:
+        x: 1288
+        y: 282
+      positionAbsolute:
+        x: 1288
+        y: 282
+      selected: true
+      sourcePosition: right
+      targetPosition: left
+      type: custom
+      width: 244
+    - data:
+        cases:
+        - case_id: 'true'
+          conditions:
+          - comparison_operator: '='
+            id: 8880c9ae-7394-472e-86bd-45b5d6d0d6ab
+            value: '1'
+            varType: number
+            variable_selector:
+            - '1754239042599'
+            - blocking
+          id: 'true'
+          logical_operator: and
+        desc: ''
+        selected: false
+        title: IF/ELSE
+        type: if-else
+      height: 126
+      id: '1754296900311'
+      position:
+        x: 384
+        y: 282
+      positionAbsolute:
+        x: 384
+        y: 282
+      sourcePosition: right
+      targetPosition: left
+      type: custom
+      width: 244
+    - data:
+        desc: ''
+        selected: false
+        template: '{{ arg1 }}'
+        title: Template
+        type: template-transform
+        variables:
+        - value_selector:
+          - '1754239044238'
+          - text
+          value_type: string
+          variable: arg1
+      height: 54
+      id: '1754296914925'
+      position:
+        x: 988
+        y: 282
+      positionAbsolute:
+        x: 988
+        y: 282
+      selected: false
+      sourcePosition: right
+      targetPosition: left
+      type: custom
+      width: 244
+    - data:
+        context:
+          enabled: false
+          variable_selector: []
+        desc: ''
+        model:
+          completion_params:
+            temperature: 0.7
+          mode: chat
+          name: gpt-4o
+          provider: langgenius/openai/openai
+        prompt_template:
+        - id: 11c2b96f-7c78-4587-985f-b8addf8825ec
+          role: system
+          text: ''
+        - id: e3b2a1be-f2ad-4d63-bf0f-c4d8cc5189f1
+          role: user
+          text: '{{#1754239042599.query#}}'
+        selected: false
+        title: LLM 2
+        type: llm
+        variables: []
+        vision:
+          enabled: false
+      height: 90
+      id: '17542969329740'
+      position:
+        x: 684
+        y: 425
+      positionAbsolute:
+        x: 684
+        y: 425
+      selected: false
+      sourcePosition: right
+      targetPosition: left
+      type: custom
+      width: 244
+    - data:
+        desc: ''
+        outputs:
+        - value_selector:
+          - '1754239042599'
+          - query
+          value_type: string
+          variable: query
+        - value_selector:
+          - '17542969329740'
+          - text
+          value_type: string
+          variable: text
+        selected: false
+        title: End 2
+        type: end
+      height: 116
+      id: '1754296943402'
+      position:
+        x: 988
+        y: 425
+      positionAbsolute:
+        x: 988
+        y: 425
+      selected: false
+      sourcePosition: right
+      targetPosition: left
+      type: custom
+      width: 244
+    viewport:
+      x: -836.2703302502922
+      y: 139.225594124043
+      zoom: 0.8934541349292853

dify/api/tests/fixtures/workflow/dual_switch_variable_aggregator_workflow.yml

@@ -0,0 +1,466 @@
+app:
+  description: 'This is a Workflow containing a variable aggregator. The Function
+    of the VariableAggregator is to select the earliest result from multiple branches
+    in each group and discard the other results.
+
+
+    At the beginning of this Workflow, the user can input switch1 and switch2, where
+    the logic for both parameters is that a value of 0 indicates false, and any other
+    value indicates true.
+
+
+    The upper and lower groups will respectively convert the values of switch1 and
+    switch2 into corresponding descriptive text. Finally, the End outputs group1 and
+    group2.
+
+
+    Example:
+
+
+    When switch1 == 1 and switch2 == 0, the final result will be:
+
+
+    ```
+
+    {"group1": "switch 1 on", "group2": "switch 2 off"}
+
+    ```'
+  icon: 🤖
+  icon_background: '#FFEAD5'
+  mode: workflow
+  name: test_variable_aggregator
+  use_icon_as_answer_icon: false
+dependencies: []
+kind: app
+version: 0.3.1
+workflow:
+  conversation_variables: []
+  environment_variables: []
+  features:
+    file_upload:
+      allowed_file_extensions:
+      - .JPG
+      - .JPEG
+      - .PNG
+      - .GIF
+      - .WEBP
+      - .SVG
+      allowed_file_types:
+      - image
+      allowed_file_upload_methods:
+      - local_file
+      - remote_url
+      enabled: false
+      fileUploadConfig:
+        audio_file_size_limit: 50
+        batch_count_limit: 5
+        file_size_limit: 15
+        image_file_size_limit: 10
+        video_file_size_limit: 100
+        workflow_file_upload_limit: 10
+      image:
+        enabled: false
+        number_limits: 3
+        transfer_methods:
+        - local_file
+        - remote_url
+      number_limits: 3
+    opening_statement: ''
+    retriever_resource:
+      enabled: true
+    sensitive_word_avoidance:
+      enabled: false
+    speech_to_text:
+      enabled: false
+    suggested_questions: []
+    suggested_questions_after_answer:
+      enabled: false
+    text_to_speech:
+      enabled: false
+      language: ''
+      voice: ''
+  graph:
+    edges:
+    - data:
+        isInIteration: false
+        isInLoop: false
+        sourceType: start
+        targetType: if-else
+      id: 1754405559643-source-1754405563693-target
+      source: '1754405559643'
+      sourceHandle: source
+      target: '1754405563693'
+      targetHandle: target
+      type: custom
+      zIndex: 0
+    - data:
+        isInLoop: false
+        sourceType: start
+        targetType: if-else
+      id: 1754405559643-source-1754405599173-target
+      source: '1754405559643'
+      sourceHandle: source
+      target: '1754405599173'
+      targetHandle: target
+      type: custom
+      zIndex: 0
+    - data:
+        isInIteration: false
+        isInLoop: false
+        sourceType: if-else
+        targetType: template-transform
+      id: 1754405563693-true-1754405621378-target
+      source: '1754405563693'
+      sourceHandle: 'true'
+      target: '1754405621378'
+      targetHandle: target
+      type: custom
+      zIndex: 0
+    - data:
+        isInIteration: false
+        isInLoop: false
+        sourceType: if-else
+        targetType: template-transform
+      id: 1754405563693-false-1754405636857-target
+      source: '1754405563693'
+      sourceHandle: 'false'
+      target: '1754405636857'
+      targetHandle: target
+      type: custom
+      zIndex: 0
+    - data:
+        isInIteration: false
+        isInLoop: false
+        sourceType: if-else
+        targetType: template-transform
+      id: 1754405599173-true-1754405668235-target
+      source: '1754405599173'
+      sourceHandle: 'true'
+      target: '1754405668235'
+      targetHandle: target
+      type: custom
+      zIndex: 0
+    - data:
+        isInIteration: false
+        isInLoop: false
+        sourceType: if-else
+        targetType: template-transform
+      id: 1754405599173-false-1754405680809-target
+      source: '1754405599173'
+      sourceHandle: 'false'
+      target: '1754405680809'
+      targetHandle: target
+      type: custom
+      zIndex: 0
+    - data:
+        isInIteration: false
+        isInLoop: false
+        sourceType: template-transform
+        targetType: variable-aggregator
+      id: 1754405621378-source-1754405693104-target
+      source: '1754405621378'
+      sourceHandle: source
+      target: '1754405693104'
+      targetHandle: target
+      type: custom
+      zIndex: 0
+    - data:
+        isInLoop: false
+        sourceType: template-transform
+        targetType: variable-aggregator
+      id: 1754405636857-source-1754405693104-target
+      source: '1754405636857'
+      sourceHandle: source
+      target: '1754405693104'
+      targetHandle: target
+      type: custom
+      zIndex: 0
+    - data:
+        isInLoop: false
+        sourceType: template-transform
+        targetType: variable-aggregator
+      id: 1754405668235-source-1754405693104-target
+      source: '1754405668235'
+      sourceHandle: source
+      target: '1754405693104'
+      targetHandle: target
+      type: custom
+      zIndex: 0
+    - data:
+        isInLoop: false
+        sourceType: template-transform
+        targetType: variable-aggregator
+      id: 1754405680809-source-1754405693104-target
+      source: '1754405680809'
+      sourceHandle: source
+      target: '1754405693104'
+      targetHandle: target
+      type: custom
+      zIndex: 0
+    - data:
+        isInIteration: false
+        isInLoop: false
+        sourceType: variable-aggregator
+        targetType: end
+      id: 1754405693104-source-1754405725407-target
+      source: '1754405693104'
+      sourceHandle: source
+      target: '1754405725407'
+      targetHandle: target
+      type: custom
+      zIndex: 0
+    nodes:
+    - data:
+        desc: ''
+        selected: false
+        title: Start
+        type: start
+        variables:
+        - label: switch1
+          max_length: 48
+          options: []
+          required: true
+          type: number
+          variable: switch1
+        - allowed_file_extensions: []
+          allowed_file_types:
+          - image
+          allowed_file_upload_methods:
+          - local_file
+          - remote_url
+          label: switch2
+          max_length: 48
+          options: []
+          required: true
+          type: number
+          variable: switch2
+      height: 116
+      id: '1754405559643'
+      position:
+        x: 80
+        y: 282
+      positionAbsolute:
+        x: 80
+        y: 282
+      selected: false
+      sourcePosition: right
+      targetPosition: left
+      type: custom
+      width: 244
+    - data:
+        cases:
+        - case_id: 'true'
+          conditions:
+          - comparison_operator: '='
+            id: 6113a363-95e9-4475-a75d-e0ec57c31e42
+            value: '1'
+            varType: number
+            variable_selector:
+            - '1754405559643'
+            - switch1
+          id: 'true'
+          logical_operator: and
+        desc: ''
+        selected: false
+        title: IF/ELSE
+        type: if-else
+      height: 126
+      id: '1754405563693'
+      position:
+        x: 389
+        y: 195
+      positionAbsolute:
+        x: 389
+        y: 195
+      selected: false
+      sourcePosition: right
+      targetPosition: left
+      type: custom
+      width: 244
+    - data:
+        cases:
+        - case_id: 'true'
+          conditions:
+          - comparison_operator: '='
+            id: e06b6c04-79a2-4c68-ab49-46ee35596746
+            value: '1'
+            varType: number
+            variable_selector:
+            - '1754405559643'
+            - switch2
+          id: 'true'
+          logical_operator: and
+        desc: ''
+        selected: false
+        title: IF/ELSE 2
+        type: if-else
+      height: 126
+      id: '1754405599173'
+      position:
+        x: 389
+        y: 426
+      positionAbsolute:
+        x: 389
+        y: 426
+      selected: false
+      sourcePosition: right
+      targetPosition: left
+      type: custom
+      width: 244
+    - data:
+        desc: ''
+        selected: false
+        template: switch 1 on
+        title: switch 1 on
+        type: template-transform
+        variables: []
+      height: 54
+      id: '1754405621378'
+      position:
+        x: 705
+        y: 149
+      positionAbsolute:
+        x: 705
+        y: 149
+      selected: false
+      sourcePosition: right
+      targetPosition: left
+      type: custom
+      width: 244
+    - data:
+        desc: ''
+        selected: false
+        template: switch 1 off
+        title: switch 1 off
+        type: template-transform
+        variables: []
+      height: 54
+      id: '1754405636857'
+      position:
+        x: 705
+        y: 303
+      positionAbsolute:
+        x: 705
+        y: 303
+      selected: false
+      sourcePosition: right
+      targetPosition: left
+      type: custom
+      width: 244
+    - data:
+        desc: ''
+        selected: false
+        template: switch 2 on
+        title: switch 2 on
+        type: template-transform
+        variables: []
+      height: 54
+      id: '1754405668235'
+      position:
+        x: 705
+        y: 426
+      positionAbsolute:
+        x: 705
+        y: 426
+      selected: false
+      sourcePosition: right
+      targetPosition: left
+      type: custom
+      width: 244
+    - data:
+        desc: ''
+        selected: false
+        template: switch 2 off
+        title: switch 2 off
+        type: template-transform
+        variables: []
+      height: 54
+      id: '1754405680809'
+      position:
+        x: 705
+        y: 549
+      positionAbsolute:
+        x: 705
+        y: 549
+      selected: false
+      sourcePosition: right
+      targetPosition: left
+      type: custom
+      width: 244
+    - data:
+        advanced_settings:
+          group_enabled: true
+          groups:
+          - groupId: a924f802-235c-47c1-85f6-922569221a39
+            group_name: Group1
+            output_type: string
+            variables:
+            - - '1754405621378'
+              - output
+            - - '1754405636857'
+              - output
+          - groupId: 940f08b5-dc9a-4907-b17a-38f24d3377e7
+            group_name: Group2
+            output_type: string
+            variables:
+            - - '1754405668235'
+              - output
+            - - '1754405680809'
+              - output
+        desc: ''
+        output_type: string
+        selected: false
+        title: Variable Aggregator
+        type: variable-aggregator
+        variables:
+        - - '1754405621378'
+          - output
+        - - '1754405636857'
+          - output
+      height: 218
+      id: '1754405693104'
+      position:
+        x: 1162
+        y: 346
+      positionAbsolute:
+        x: 1162
+        y: 346
+      selected: true
+      sourcePosition: right
+      targetPosition: left
+      type: custom
+      width: 244
+    - data:
+        desc: ''
+        outputs:
+        - value_selector:
+          - '1754405693104'
+          - Group1
+          - output
+          value_type: object
+          variable: group1
+        - value_selector:
+          - '1754405693104'
+          - Group2
+          - output
+          value_type: object
+          variable: group2
+        selected: false
+        title: End
+        type: end
+      height: 116
+      id: '1754405725407'
+      position:
+        x: 1466
+        y: 346
+      positionAbsolute:
+        x: 1466
+        y: 346
+      sourcePosition: right
+      targetPosition: left
+      type: custom
+      width: 244
+    viewport:
+      x: -613.9603256773148
+      y: 113.20026978990225
+      zoom: 0.5799498272527172

dify/api/tests/fixtures/workflow/http_request_with_json_tool_workflow.yml

@@ -0,0 +1,188 @@
+app:
+  description: 'Workflow with HTTP Request and Tool nodes for testing auto-mock'
+  icon: 🔧
+  icon_background: '#FFEAD5'
+  mode: workflow
+  name: http-tool-workflow
+  use_icon_as_answer_icon: false
+dependencies: []
+kind: app
+version: 0.3.1
+workflow:
+  conversation_variables: []
+  environment_variables: []
+  features:
+    file_upload:
+      enabled: false
+    opening_statement: ''
+    retriever_resource:
+      enabled: false
+    sensitive_word_avoidance:
+      enabled: false
+    speech_to_text:
+      enabled: false
+    suggested_questions: []
+    suggested_questions_after_answer:
+      enabled: false
+    text_to_speech:
+      enabled: false
+  graph:
+    edges:
+    - data:
+        isInIteration: false
+        isInLoop: false
+        sourceType: start
+        targetType: http-request
+      id: start-to-http
+      source: 'start_node'
+      sourceHandle: source
+      target: 'http_node'
+      targetHandle: target
+      type: custom
+      zIndex: 0
+    - data:
+        isInIteration: false
+        isInLoop: false
+        sourceType: http-request
+        targetType: tool
+      id: http-to-tool
+      source: 'http_node'
+      sourceHandle: source
+      target: 'tool_node'
+      targetHandle: target
+      type: custom
+      zIndex: 0
+    - data:
+        isInIteration: false
+        isInLoop: false
+        sourceType: tool
+        targetType: end
+      id: tool-to-end
+      source: 'tool_node'
+      sourceHandle: source
+      target: 'end_node'
+      targetHandle: target
+      type: custom
+      zIndex: 0
+    nodes:
+    - data:
+        desc: ''
+        selected: false
+        title: Start
+        type: start
+        variables:
+        - label: url
+          max_length: null
+          options: []
+          required: true
+          type: text-input
+          variable: url
+      height: 90
+      id: 'start_node'
+      position:
+        x: 30
+        y: 227
+      positionAbsolute:
+        x: 30
+        y: 227
+      selected: false
+      sourcePosition: right
+      targetPosition: left
+      type: custom
+      width: 244
+    - data:
+        desc: 'HTTP Request Node for testing'
+        title: HTTP Request
+        type: http-request
+        method: GET
+        url: '{{#start_node.url#}}'
+        authorization:
+          type: no-auth
+        headers: ''
+        params: ''
+        body:
+          type: none
+          data: ''
+        timeout:
+          connect: 10
+          read: 30
+          write: 30
+        retry_config:
+          enabled: false
+          max_retries: 1
+          retry_interval: 1000
+          exponential_backoff:
+            enabled: false
+            multiplier: 2
+            max_interval: 10000
+      height: 90
+      id: 'http_node'
+      position:
+        x: 334
+        y: 227
+      positionAbsolute:
+        x: 334
+        y: 227
+      selected: false
+      sourcePosition: right
+      targetPosition: left
+      type: custom
+      width: 244
+    - data:
+        desc: 'Tool Node for testing'
+        title: Tool
+        type: tool
+        provider_id: 'builtin'
+        provider_type: 'builtin'
+        provider_name: 'Builtin Tools'
+        tool_name: 'json_parse'
+        tool_label: 'JSON Parse'
+        tool_configurations: {}
+        tool_parameters:
+          json_string: '{{#http_node.body#}}'
+      height: 90
+      id: 'tool_node'
+      position:
+        x: 638
+        y: 227
+      positionAbsolute:
+        x: 638
+        y: 227
+      selected: false
+      sourcePosition: right
+      targetPosition: left
+      type: custom
+      width: 244
+    - data:
+        desc: ''
+        outputs:
+        - value_selector:
+          - 'http_node'
+          - status_code
+          value_type: number
+          variable: status_code
+        - value_selector:
+          - 'tool_node'
+          - result
+          value_type: object
+          variable: parsed_data
+        selected: false
+        title: End
+        type: end
+      height: 90
+      id: 'end_node'
+      position:
+        x: 942
+        y: 227
+      positionAbsolute:
+        x: 942
+        y: 227
+      selected: false
+      sourcePosition: right
+      targetPosition: left
+      type: custom
+      width: 244
+    viewport:
+      x: 0
+      y: 0
+      zoom: 0.7

dify/api/tests/fixtures/workflow/increment_loop_with_break_condition_workflow.yml

@@ -0,0 +1,233 @@
+app:
+  description: 'this workflow run a loop until num >= 5, it outputs {"num": 5}'
+  icon: 🤖
+  icon_background: '#FFEAD5'
+  mode: workflow
+  name: test_loop
+  use_icon_as_answer_icon: false
+dependencies: []
+kind: app
+version: 0.3.1
+workflow:
+  conversation_variables: []
+  environment_variables: []
+  features:
+    file_upload:
+      allowed_file_extensions:
+      - .JPG
+      - .JPEG
+      - .PNG
+      - .GIF
+      - .WEBP
+      - .SVG
+      allowed_file_types:
+      - image
+      allowed_file_upload_methods:
+      - local_file
+      - remote_url
+      enabled: false
+      fileUploadConfig:
+        audio_file_size_limit: 50
+        batch_count_limit: 5
+        file_size_limit: 15
+        image_file_size_limit: 10
+        video_file_size_limit: 100
+        workflow_file_upload_limit: 10
+      image:
+        enabled: false
+        number_limits: 3
+        transfer_methods:
+        - local_file
+        - remote_url
+      number_limits: 3
+    opening_statement: ''
+    retriever_resource:
+      enabled: true
+    sensitive_word_avoidance:
+      enabled: false
+    speech_to_text:
+      enabled: false
+    suggested_questions: []
+    suggested_questions_after_answer:
+      enabled: false
+    text_to_speech:
+      enabled: false
+      language: ''
+      voice: ''
+  graph:
+    edges:
+    - data:
+        isInIteration: false
+        isInLoop: false
+        sourceType: start
+        targetType: loop
+      id: 1754827922555-source-1754827949615-target
+      source: '1754827922555'
+      sourceHandle: source
+      target: '1754827949615'
+      targetHandle: target
+      type: custom
+      zIndex: 0
+    - data:
+        isInIteration: false
+        isInLoop: true
+        loop_id: '1754827949615'
+        sourceType: loop-start
+        targetType: assigner
+      id: 1754827949615start-source-1754827988715-target
+      source: 1754827949615start
+      sourceHandle: source
+      target: '1754827988715'
+      targetHandle: target
+      type: custom
+      zIndex: 1002
+    - data:
+        isInIteration: false
+        isInLoop: false
+        sourceType: loop
+        targetType: end
+      id: 1754827949615-source-1754828005059-target
+      source: '1754827949615'
+      sourceHandle: source
+      target: '1754828005059'
+      targetHandle: target
+      type: custom
+      zIndex: 0
+    nodes:
+    - data:
+        desc: ''
+        selected: false
+        title: Start
+        type: start
+        variables: []
+      height: 54
+      id: '1754827922555'
+      position:
+        x: 30
+        y: 303
+      positionAbsolute:
+        x: 30
+        y: 303
+      sourcePosition: right
+      targetPosition: left
+      type: custom
+      width: 244
+    - data:
+        break_conditions:
+        - comparison_operator: ≥
+          id: 5969c8b0-0d1e-4057-8652-f62622663435
+          value: '5'
+          varType: number
+          variable_selector:
+          - '1754827949615'
+          - num
+        desc: ''
+        height: 206
+        logical_operator: and
+        loop_count: 10
+        loop_variables:
+        - id: 47c15345-4a5d-40a0-8fbb-88f8a4074475
+          label: num
+          value: '1'
+          value_type: constant
+          var_type: number
+        selected: false
+        start_node_id: 1754827949615start
+        title: Loop
+        type: loop
+        width: 508
+      height: 206
+      id: '1754827949615'
+      position:
+        x: 334
+        y: 303
+      positionAbsolute:
+        x: 334
+        y: 303
+      selected: true
+      sourcePosition: right
+      targetPosition: left
+      type: custom
+      width: 508
+      zIndex: 1
+    - data:
+        desc: ''
+        isInLoop: true
+        selected: false
+        title: ''
+        type: loop-start
+      draggable: false
+      height: 48
+      id: 1754827949615start
+      parentId: '1754827949615'
+      position:
+        x: 60
+        y: 79
+      positionAbsolute:
+        x: 394
+        y: 382
+      selectable: false
+      sourcePosition: right
+      targetPosition: left
+      type: custom-loop-start
+      width: 44
+      zIndex: 1002
+    - data:
+        desc: ''
+        isInIteration: false
+        isInLoop: true
+        items:
+        - input_type: constant
+          operation: +=
+          value: 1
+          variable_selector:
+          - '1754827949615'
+          - num
+          write_mode: over-write
+        loop_id: '1754827949615'
+        selected: false
+        title: Variable Assigner
+        type: assigner
+        version: '2'
+      height: 86
+      id: '1754827988715'
+      parentId: '1754827949615'
+      position:
+        x: 204
+        y: 60
+      positionAbsolute:
+        x: 538
+        y: 363
+      selected: false
+      sourcePosition: right
+      targetPosition: left
+      type: custom
+      width: 244
+      zIndex: 1002
+    - data:
+        desc: ''
+        outputs:
+        - value_selector:
+          - '1754827949615'
+          - num
+          value_type: number
+          variable: num
+        selected: false
+        title: End
+        type: end
+      height: 90
+      id: '1754828005059'
+      position:
+        x: 902
+        y: 303
+      positionAbsolute:
+        x: 902
+        y: 303
+      sourcePosition: right
+      targetPosition: left
+      type: custom
+      width: 244
+    viewport:
+      x: 0
+      y: 0
+      zoom: 0.7

dify/api/tests/fixtures/workflow/iteration_flatten_output_disabled_workflow.yml

@@ -0,0 +1,258 @@
+app:
+  description: 'This workflow tests the iteration node with flatten_output=False.
+
+
+    It processes [1, 2, 3], outputs [item, item*2] for each iteration.
+
+
+    With flatten_output=False, it should output nested arrays:
+
+
+    ```
+
+    {"output": [[1, 2], [2, 4], [3, 6]]}
+
+    ```'
+  icon: 🤖
+  icon_background: '#FFEAD5'
+  mode: workflow
+  name: test_iteration_flatten_disabled
+  use_icon_as_answer_icon: false
+dependencies: []
+kind: app
+version: 0.3.1
+workflow:
+  conversation_variables: []
+  environment_variables: []
+  features:
+    file_upload:
+      enabled: false
+    opening_statement: ''
+    retriever_resource:
+      enabled: true
+    sensitive_word_avoidance:
+      enabled: false
+    speech_to_text:
+      enabled: false
+    suggested_questions: []
+    suggested_questions_after_answer:
+      enabled: false
+    text_to_speech:
+      enabled: false
+  graph:
+    edges:
+    - data:
+        isInIteration: false
+        isInLoop: false
+        sourceType: start
+        targetType: code
+      id: start-source-code-target
+      source: start_node
+      sourceHandle: source
+      target: code_node
+      targetHandle: target
+      type: custom
+      zIndex: 0
+    - data:
+        isInIteration: false
+        isInLoop: false
+        sourceType: code
+        targetType: iteration
+      id: code-source-iteration-target
+      source: code_node
+      sourceHandle: source
+      target: iteration_node
+      targetHandle: target
+      type: custom
+      zIndex: 0
+    - data:
+        isInIteration: true
+        isInLoop: false
+        iteration_id: iteration_node
+        sourceType: iteration-start
+        targetType: code
+      id: iteration-start-source-code-inner-target
+      source: iteration_nodestart
+      sourceHandle: source
+      target: code_inner_node
+      targetHandle: target
+      type: custom
+      zIndex: 1002
+    - data:
+        isInIteration: false
+        isInLoop: false
+        sourceType: iteration
+        targetType: end
+      id: iteration-source-end-target
+      source: iteration_node
+      sourceHandle: source
+      target: end_node
+      targetHandle: target
+      type: custom
+      zIndex: 0
+    nodes:
+    - data:
+        desc: ''
+        selected: false
+        title: Start
+        type: start
+        variables: []
+      height: 54
+      id: start_node
+      position:
+        x: 80
+        y: 282
+      positionAbsolute:
+        x: 80
+        y: 282
+      sourcePosition: right
+      targetPosition: left
+      type: custom
+      width: 244
+    - data:
+        code: "\ndef main() -> dict:\n    return {\n        \"result\": [1, 2, 3],\n\
+          \    }\n"
+        code_language: python3
+        desc: ''
+        outputs:
+          result:
+            children: null
+            type: array[number]
+        selected: false
+        title: Generate Array
+        type: code
+        variables: []
+      height: 54
+      id: code_node
+      position:
+        x: 384
+        y: 282
+      positionAbsolute:
+        x: 384
+        y: 282
+      selected: false
+      sourcePosition: right
+      targetPosition: left
+      type: custom
+      width: 244
+    - data:
+        desc: ''
+        error_handle_mode: terminated
+        flatten_output: false
+        height: 178
+        is_parallel: false
+        iterator_input_type: array[number]
+        iterator_selector:
+        - code_node
+        - result
+        output_selector:
+        - code_inner_node
+        - result
+        output_type: array[array[number]]
+        parallel_nums: 10
+        selected: false
+        start_node_id: iteration_nodestart
+        title: Iteration with Flatten Disabled
+        type: iteration
+        width: 388
+      height: 178
+      id: iteration_node
+      position:
+        x: 684
+        y: 282
+      positionAbsolute:
+        x: 684
+        y: 282
+      selected: false
+      sourcePosition: right
+      targetPosition: left
+      type: custom
+      width: 388
+      zIndex: 1
+    - data:
+        desc: ''
+        isInIteration: true
+        selected: false
+        title: ''
+        type: iteration-start
+      draggable: false
+      height: 48
+      id: iteration_nodestart
+      parentId: iteration_node
+      position:
+        x: 24
+        y: 68
+      positionAbsolute:
+        x: 708
+        y: 350
+      selectable: false
+      sourcePosition: right
+      targetPosition: left
+      type: custom-iteration-start
+      width: 44
+      zIndex: 1002
+    - data:
+        code: "\ndef main(arg1: int) -> dict:\n    return {\n        \"result\": [arg1,\
+          \ arg1 * 2],\n    }\n"
+        code_language: python3
+        desc: ''
+        isInIteration: true
+        isInLoop: false
+        iteration_id: iteration_node
+        outputs:
+          result:
+            children: null
+            type: array[number]
+        selected: false
+        title: Generate Pair
+        type: code
+        variables:
+        - value_selector:
+          - iteration_node
+          - item
+          value_type: number
+          variable: arg1
+      height: 54
+      id: code_inner_node
+      parentId: iteration_node
+      position:
+        x: 128
+        y: 68
+      positionAbsolute:
+        x: 812
+        y: 350
+      selected: false
+      sourcePosition: right
+      targetPosition: left
+      type: custom
+      width: 244
+      zIndex: 1002
+    - data:
+        desc: ''
+        outputs:
+        - value_selector:
+          - iteration_node
+          - output
+          value_type: array[array[number]]
+          variable: output
+        selected: false
+        title: End
+        type: end
+      height: 90
+      id: end_node
+      position:
+        x: 1132
+        y: 282
+      positionAbsolute:
+        x: 1132
+        y: 282
+      selected: true
+      sourcePosition: right
+      targetPosition: left
+      type: custom
+      width: 244
+    viewport:
+      x: -476
+      y: 3
+      zoom: 1
+

dify/api/tests/fixtures/workflow/iteration_flatten_output_enabled_workflow.yml

@@ -0,0 +1,258 @@
+app:
+  description: 'This workflow tests the iteration node with flatten_output=True.
+
+
+    It processes [1, 2, 3], outputs [item, item*2] for each iteration.
+
+
+    With flatten_output=True (default), it should output:
+
+
+    ```
+
+    {"output": [1, 2, 2, 4, 3, 6]}
+
+    ```'
+  icon: 🤖
+  icon_background: '#FFEAD5'
+  mode: workflow
+  name: test_iteration_flatten_enabled
+  use_icon_as_answer_icon: false
+dependencies: []
+kind: app
+version: 0.3.1
+workflow:
+  conversation_variables: []
+  environment_variables: []
+  features:
+    file_upload:
+      enabled: false
+    opening_statement: ''
+    retriever_resource:
+      enabled: true
+    sensitive_word_avoidance:
+      enabled: false
+    speech_to_text:
+      enabled: false
+    suggested_questions: []
+    suggested_questions_after_answer:
+      enabled: false
+    text_to_speech:
+      enabled: false
+  graph:
+    edges:
+    - data:
+        isInIteration: false
+        isInLoop: false
+        sourceType: start
+        targetType: code
+      id: start-source-code-target
+      source: start_node
+      sourceHandle: source
+      target: code_node
+      targetHandle: target
+      type: custom
+      zIndex: 0
+    - data:
+        isInIteration: false
+        isInLoop: false
+        sourceType: code
+        targetType: iteration
+      id: code-source-iteration-target
+      source: code_node
+      sourceHandle: source
+      target: iteration_node
+      targetHandle: target
+      type: custom
+      zIndex: 0
+    - data:
+        isInIteration: true
+        isInLoop: false
+        iteration_id: iteration_node
+        sourceType: iteration-start
+        targetType: code
+      id: iteration-start-source-code-inner-target
+      source: iteration_nodestart
+      sourceHandle: source
+      target: code_inner_node
+      targetHandle: target
+      type: custom
+      zIndex: 1002
+    - data:
+        isInIteration: false
+        isInLoop: false
+        sourceType: iteration
+        targetType: end
+      id: iteration-source-end-target
+      source: iteration_node
+      sourceHandle: source
+      target: end_node
+      targetHandle: target
+      type: custom
+      zIndex: 0
+    nodes:
+    - data:
+        desc: ''
+        selected: false
+        title: Start
+        type: start
+        variables: []
+      height: 54
+      id: start_node
+      position:
+        x: 80
+        y: 282
+      positionAbsolute:
+        x: 80
+        y: 282
+      sourcePosition: right
+      targetPosition: left
+      type: custom
+      width: 244
+    - data:
+        code: "\ndef main() -> dict:\n    return {\n        \"result\": [1, 2, 3],\n\
+          \    }\n"
+        code_language: python3
+        desc: ''
+        outputs:
+          result:
+            children: null
+            type: array[number]
+        selected: false
+        title: Generate Array
+        type: code
+        variables: []
+      height: 54
+      id: code_node
+      position:
+        x: 384
+        y: 282
+      positionAbsolute:
+        x: 384
+        y: 282
+      selected: false
+      sourcePosition: right
+      targetPosition: left
+      type: custom
+      width: 244
+    - data:
+        desc: ''
+        error_handle_mode: terminated
+        flatten_output: true
+        height: 178
+        is_parallel: false
+        iterator_input_type: array[number]
+        iterator_selector:
+        - code_node
+        - result
+        output_selector:
+        - code_inner_node
+        - result
+        output_type: array[array[number]]
+        parallel_nums: 10
+        selected: false
+        start_node_id: iteration_nodestart
+        title: Iteration with Flatten Enabled
+        type: iteration
+        width: 388
+      height: 178
+      id: iteration_node
+      position:
+        x: 684
+        y: 282
+      positionAbsolute:
+        x: 684
+        y: 282
+      selected: false
+      sourcePosition: right
+      targetPosition: left
+      type: custom
+      width: 388
+      zIndex: 1
+    - data:
+        desc: ''
+        isInIteration: true
+        selected: false
+        title: ''
+        type: iteration-start
+      draggable: false
+      height: 48
+      id: iteration_nodestart
+      parentId: iteration_node
+      position:
+        x: 24
+        y: 68
+      positionAbsolute:
+        x: 708
+        y: 350
+      selectable: false
+      sourcePosition: right
+      targetPosition: left
+      type: custom-iteration-start
+      width: 44
+      zIndex: 1002
+    - data:
+        code: "\ndef main(arg1: int) -> dict:\n    return {\n        \"result\": [arg1,\
+          \ arg1 * 2],\n    }\n"
+        code_language: python3
+        desc: ''
+        isInIteration: true
+        isInLoop: false
+        iteration_id: iteration_node
+        outputs:
+          result:
+            children: null
+            type: array[number]
+        selected: false
+        title: Generate Pair
+        type: code
+        variables:
+        - value_selector:
+          - iteration_node
+          - item
+          value_type: number
+          variable: arg1
+      height: 54
+      id: code_inner_node
+      parentId: iteration_node
+      position:
+        x: 128
+        y: 68
+      positionAbsolute:
+        x: 812
+        y: 350
+      selected: false
+      sourcePosition: right
+      targetPosition: left
+      type: custom
+      width: 244
+      zIndex: 1002
+    - data:
+        desc: ''
+        outputs:
+        - value_selector:
+          - iteration_node
+          - output
+          value_type: array[number]
+          variable: output
+        selected: false
+        title: End
+        type: end
+      height: 90
+      id: end_node
+      position:
+        x: 1132
+        y: 282
+      positionAbsolute:
+        x: 1132
+        y: 282
+      selected: true
+      sourcePosition: right
+      targetPosition: left
+      type: custom
+      width: 244
+    viewport:
+      x: -476
+      y: 3
+      zoom: 1
+

dify/api/tests/fixtures/workflow/loop_contains_answer.yml

@@ -0,0 +1,271 @@
+app:
+  description: ''
+  icon: 🤖
+  icon_background: '#FFEAD5'
+  mode: advanced-chat
+  name: loop_contains_answer
+  use_icon_as_answer_icon: false
+dependencies: []
+kind: app
+version: 0.3.1
+workflow:
+  conversation_variables: []
+  environment_variables: []
+  features:
+    file_upload:
+      allowed_file_extensions:
+      - .JPG
+      - .JPEG
+      - .PNG
+      - .GIF
+      - .WEBP
+      - .SVG
+      allowed_file_types:
+      - image
+      allowed_file_upload_methods:
+      - local_file
+      - remote_url
+      enabled: false
+      fileUploadConfig:
+        audio_file_size_limit: 50
+        batch_count_limit: 5
+        file_size_limit: 15
+        image_file_size_limit: 10
+        video_file_size_limit: 100
+        workflow_file_upload_limit: 10
+      image:
+        enabled: false
+        number_limits: 3
+        transfer_methods:
+        - local_file
+        - remote_url
+      number_limits: 3
+    opening_statement: ''
+    retriever_resource:
+      enabled: true
+    sensitive_word_avoidance:
+      enabled: false
+    speech_to_text:
+      enabled: false
+    suggested_questions: []
+    suggested_questions_after_answer:
+      enabled: false
+    text_to_speech:
+      enabled: false
+      language: ''
+      voice: ''
+  graph:
+    edges:
+    - data:
+        isInIteration: false
+        isInLoop: false
+        sourceType: start
+        targetType: loop
+      id: 1755203854938-source-1755203872773-target
+      source: '1755203854938'
+      sourceHandle: source
+      target: '1755203872773'
+      targetHandle: target
+      type: custom
+      zIndex: 0
+    - data:
+        isInIteration: false
+        isInLoop: true
+        loop_id: '1755203872773'
+        sourceType: loop-start
+        targetType: assigner
+      id: 1755203872773start-source-1755203898151-target
+      source: 1755203872773start
+      sourceHandle: source
+      target: '1755203898151'
+      targetHandle: target
+      type: custom
+      zIndex: 1002
+    - data:
+        isInIteration: false
+        isInLoop: false
+        sourceType: loop
+        targetType: answer
+      id: 1755203872773-source-1755203915300-target
+      source: '1755203872773'
+      sourceHandle: source
+      target: '1755203915300'
+      targetHandle: target
+      type: custom
+      zIndex: 0
+    - data:
+        isInIteration: false
+        isInLoop: true
+        loop_id: '1755203872773'
+        sourceType: assigner
+        targetType: answer
+      id: 1755203898151-source-1755204039754-target
+      source: '1755203898151'
+      sourceHandle: source
+      target: '1755204039754'
+      targetHandle: target
+      type: custom
+      zIndex: 1002
+    nodes:
+    - data:
+        desc: ''
+        selected: false
+        title: Start
+        type: start
+        variables: []
+      height: 54
+      id: '1755203854938'
+      position:
+        x: 30
+        y: 312.5
+      positionAbsolute:
+        x: 30
+        y: 312.5
+      sourcePosition: right
+      targetPosition: left
+      type: custom
+      width: 244
+    - data:
+        break_conditions:
+        - comparison_operator: ≥
+          id: cd78b3ba-ad1d-4b73-8c8b-08391bb5ed46
+          value: '2'
+          varType: number
+          variable_selector:
+          - '1755203872773'
+          - i
+        desc: ''
+        error_handle_mode: terminated
+        height: 225
+        logical_operator: and
+        loop_count: 10
+        loop_variables:
+        - id: e163b557-327f-494f-be70-87bd15791168
+          label: i
+          value: '0'
+          value_type: constant
+          var_type: number
+        selected: false
+        start_node_id: 1755203872773start
+        title: Loop
+        type: loop
+        width: 884
+      height: 225
+      id: '1755203872773'
+      position:
+        x: 334
+        y: 312.5
+      positionAbsolute:
+        x: 334
+        y: 312.5
+      selected: false
+      sourcePosition: right
+      targetPosition: left
+      type: custom
+      width: 884
+      zIndex: 1
+    - data:
+        desc: ''
+        isInLoop: true
+        selected: false
+        title: ''
+        type: loop-start
+      draggable: false
+      height: 48
+      id: 1755203872773start
+      parentId: '1755203872773'
+      position:
+        x: 60
+        y: 88.5
+      positionAbsolute:
+        x: 394
+        y: 401
+      selectable: false
+      sourcePosition: right
+      targetPosition: left
+      type: custom-loop-start
+      width: 44
+      zIndex: 1002
+    - data:
+        desc: ''
+        isInIteration: false
+        isInLoop: true
+        items:
+        - input_type: constant
+          operation: +=
+          value: 1
+          variable_selector:
+          - '1755203872773'
+          - i
+          write_mode: over-write
+        loop_id: '1755203872773'
+        selected: false
+        title: Variable Assigner
+        type: assigner
+        version: '2'
+      height: 86
+      id: '1755203898151'
+      parentId: '1755203872773'
+      position:
+        x: 229.43200275622496
+        y: 80.62650120584834
+      positionAbsolute:
+        x: 563.432002756225
+        y: 393.12650120584834
+      selected: false
+      sourcePosition: right
+      targetPosition: left
+      type: custom
+      width: 244
+      zIndex: 1002
+    - data:
+        answer: '{{#sys.query#}} + {{#1755203872773.i#}}'
+        desc: ''
+        selected: false
+        title: Answer 2
+        type: answer
+        variables: []
+      height: 123
+      id: '1755203915300'
+      position:
+        x: 1278
+        y: 312.5
+      positionAbsolute:
+        x: 1278
+        y: 312.5
+      selected: true
+      sourcePosition: right
+      targetPosition: left
+      type: custom
+      width: 244
+    - data:
+        answer: '{{#1755203872773.i#}}
+
+          '
+        desc: ''
+        isInIteration: false
+        isInLoop: true
+        loop_id: '1755203872773'
+        selected: false
+        title: Answer 2
+        type: answer
+        variables: []
+      height: 105
+      id: '1755204039754'
+      parentId: '1755203872773'
+      position:
+        x: 574.7590072350902
+        y: 71.35800068905621
+      positionAbsolute:
+        x: 908.7590072350902
+        y: 383.8580006890562
+      selected: false
+      sourcePosition: right
+      targetPosition: left
+      type: custom
+      width: 244
+      zIndex: 1002
+    viewport:
+      x: -165.28002407881013
+      y: 113.20590785323213
+      zoom: 0.6291285886277216

dify/api/tests/fixtures/workflow/multilingual_parallel_llm_streaming_workflow.yml

@@ -0,0 +1,249 @@
+app:
+  description: 'This chatflow contains 2 LLM, LLM 1 always speak English, LLM 2 always
+    speak Chinese.
+
+
+    2 LLMs run parallel, but LLM 2 will output before LLM 1, so we can see all LLM
+    2 chunks, then LLM 1 chunks.
+
+
+    All chunks should be send before Answer Node started.'
+  icon: 🤖
+  icon_background: '#FFEAD5'
+  mode: advanced-chat
+  name: test_parallel_streaming
+  use_icon_as_answer_icon: false
+dependencies:
+- current_identifier: null
+  type: marketplace
+  value:
+    marketplace_plugin_unique_identifier: langgenius/openai:0.0.30@1f5ecdef108418a467e54da2dcf5de2cf22b47632abc8633194ac9fb96317ede
+kind: app
+version: 0.3.1
+workflow:
+  conversation_variables: []
+  environment_variables: []
+  features:
+    file_upload:
+      allowed_file_extensions:
+      - .JPG
+      - .JPEG
+      - .PNG
+      - .GIF
+      - .WEBP
+      - .SVG
+      allowed_file_types:
+      - image
+      allowed_file_upload_methods:
+      - local_file
+      - remote_url
+      enabled: false
+      fileUploadConfig:
+        audio_file_size_limit: 50
+        batch_count_limit: 5
+        file_size_limit: 15
+        image_file_size_limit: 10
+        video_file_size_limit: 100
+        workflow_file_upload_limit: 10
+      image:
+        enabled: false
+        number_limits: 3
+        transfer_methods:
+        - local_file
+        - remote_url
+      number_limits: 3
+    opening_statement: ''
+    retriever_resource:
+      enabled: true
+    sensitive_word_avoidance:
+      enabled: false
+    speech_to_text:
+      enabled: false
+    suggested_questions: []
+    suggested_questions_after_answer:
+      enabled: false
+    text_to_speech:
+      enabled: false
+      language: ''
+      voice: ''
+  graph:
+    edges:
+    - data:
+        isInIteration: false
+        isInLoop: false
+        sourceType: start
+        targetType: llm
+      id: 1754336720803-source-1754339718571-target
+      source: '1754336720803'
+      sourceHandle: source
+      target: '1754339718571'
+      targetHandle: target
+      type: custom
+      zIndex: 0
+    - data:
+        isInLoop: false
+        sourceType: start
+        targetType: llm
+      id: 1754336720803-source-1754339725656-target
+      source: '1754336720803'
+      sourceHandle: source
+      target: '1754339725656'
+      targetHandle: target
+      type: custom
+      zIndex: 0
+    - data:
+        isInLoop: false
+        sourceType: llm
+        targetType: answer
+      id: 1754339718571-source-answer-target
+      source: '1754339718571'
+      sourceHandle: source
+      target: answer
+      targetHandle: target
+      type: custom
+      zIndex: 0
+    - data:
+        isInLoop: false
+        sourceType: llm
+        targetType: answer
+      id: 1754339725656-source-answer-target
+      source: '1754339725656'
+      sourceHandle: source
+      target: answer
+      targetHandle: target
+      type: custom
+      zIndex: 0
+    nodes:
+    - data:
+        desc: ''
+        selected: false
+        title: Start
+        type: start
+        variables: []
+      height: 54
+      id: '1754336720803'
+      position:
+        x: 30
+        y: 252.5
+      positionAbsolute:
+        x: 30
+        y: 252.5
+      selected: false
+      sourcePosition: right
+      targetPosition: left
+      type: custom
+      width: 244
+    - data:
+        answer: '{{#1754339725656.text#}}{{#1754339718571.text#}}'
+        desc: ''
+        selected: true
+        title: Answer
+        type: answer
+        variables: []
+      height: 105
+      id: answer
+      position:
+        x: 638
+        y: 252.5
+      positionAbsolute:
+        x: 638
+        y: 252.5
+      selected: true
+      sourcePosition: right
+      targetPosition: left
+      type: custom
+      width: 244
+    - data:
+        context:
+          enabled: false
+          variable_selector: []
+        desc: ''
+        memory:
+          query_prompt_template: '{{#sys.query#}}
+
+
+            {{#sys.files#}}'
+          role_prefix:
+            assistant: ''
+            user: ''
+          window:
+            enabled: false
+            size: 50
+        model:
+          completion_params:
+            temperature: 0.7
+          mode: chat
+          name: gpt-4o
+          provider: langgenius/openai/openai
+        prompt_template:
+        - id: e8ef0664-d560-4017-85f2-9a40187d8a53
+          role: system
+          text: Always speak English.
+        selected: false
+        title: LLM 1
+        type: llm
+        variables: []
+        vision:
+          enabled: false
+      height: 90
+      id: '1754339718571'
+      position:
+        x: 334
+        y: 252.5
+      positionAbsolute:
+        x: 334
+        y: 252.5
+      selected: false
+      sourcePosition: right
+      targetPosition: left
+      type: custom
+      width: 244
+    - data:
+        context:
+          enabled: false
+          variable_selector: []
+        desc: ''
+        memory:
+          query_prompt_template: '{{#sys.query#}}
+
+
+            {{#sys.files#}}'
+          role_prefix:
+            assistant: ''
+            user: ''
+          window:
+            enabled: false
+            size: 50
+        model:
+          completion_params:
+            temperature: 0.7
+          mode: chat
+          name: gpt-4o
+          provider: langgenius/openai/openai
+        prompt_template:
+        - id: 326169b2-0817-4bc2-83d6-baf5c9efd175
+          role: system
+          text: Always speak Chinese.
+        selected: false
+        title: LLM 2
+        type: llm
+        variables: []
+        vision:
+          enabled: false
+      height: 90
+      id: '1754339725656'
+      position:
+        x: 334
+        y: 382.5
+      positionAbsolute:
+        x: 334
+        y: 382.5
+      selected: false
+      sourcePosition: right
+      targetPosition: left
+      type: custom
+      width: 244
+    viewport:
+      x: -108.49999999999994
+      y: 229.5
+      zoom: 0.7

dify/api/tests/fixtures/workflow/search_dify_from_2023_to_2025.yml

@@ -0,0 +1,760 @@
+app:
+  description: ''
+  icon: 🤖
+  icon_background: '#FFEAD5'
+  mode: advanced-chat
+  name: search_dify_from_2023_to_2025
+  use_icon_as_answer_icon: false
+dependencies:
+- current_identifier: null
+  type: marketplace
+  value:
+    marketplace_plugin_unique_identifier: langgenius/perplexity:1.0.1@32531e4a1ec68754e139f29f04eaa7f51130318a908d11382a27dc05ec8d91e3
+kind: app
+version: 0.3.1
+workflow:
+  conversation_variables: []
+  environment_variables: []
+  features:
+    file_upload:
+      allowed_file_extensions:
+      - .JPG
+      - .JPEG
+      - .PNG
+      - .GIF
+      - .WEBP
+      - .SVG
+      allowed_file_types:
+      - image
+      allowed_file_upload_methods:
+      - local_file
+      - remote_url
+      enabled: false
+      fileUploadConfig:
+        audio_file_size_limit: 50
+        batch_count_limit: 5
+        file_size_limit: 15
+        image_file_size_limit: 10
+        video_file_size_limit: 100
+        workflow_file_upload_limit: 10
+      image:
+        enabled: false
+        number_limits: 3
+        transfer_methods:
+        - local_file
+        - remote_url
+      number_limits: 3
+    opening_statement: ''
+    retriever_resource:
+      enabled: true
+    sensitive_word_avoidance:
+      enabled: false
+    speech_to_text:
+      enabled: false
+    suggested_questions: []
+    suggested_questions_after_answer:
+      enabled: false
+    text_to_speech:
+      enabled: false
+      language: ''
+      voice: ''
+  graph:
+    edges:
+    - data:
+        isInIteration: false
+        isInLoop: false
+        sourceType: start
+        targetType: loop
+      id: 1754979518055-source-1754979524910-target
+      selected: false
+      source: '1754979518055'
+      sourceHandle: source
+      target: '1754979524910'
+      targetHandle: target
+      type: custom
+      zIndex: 0
+    - data:
+        isInIteration: false
+        isInLoop: true
+        loop_id: '1754979524910'
+        sourceType: loop-start
+        targetType: tool
+      id: 1754979524910start-source-1754979561786-target
+      source: 1754979524910start
+      sourceHandle: source
+      target: '1754979561786'
+      targetHandle: target
+      type: custom
+      zIndex: 1002
+    - data:
+        isInIteration: false
+        isInLoop: true
+        loop_id: '1754979524910'
+        sourceType: tool
+        targetType: assigner
+      id: 1754979561786-source-1754979613854-target
+      source: '1754979561786'
+      sourceHandle: source
+      target: '1754979613854'
+      targetHandle: target
+      type: custom
+      zIndex: 1002
+    - data:
+        isInIteration: false
+        isInLoop: false
+        sourceType: loop
+        targetType: answer
+      id: 1754979524910-source-1754979638585-target
+      source: '1754979524910'
+      sourceHandle: source
+      target: '1754979638585'
+      targetHandle: target
+      type: custom
+      zIndex: 0
+    nodes:
+    - data:
+        desc: ''
+        selected: false
+        title: Start
+        type: start
+        variables: []
+      height: 54
+      id: '1754979518055'
+      position:
+        x: 80
+        y: 282
+      positionAbsolute:
+        x: 80
+        y: 282
+      selected: false
+      sourcePosition: right
+      targetPosition: left
+      type: custom
+      width: 244
+    - data:
+        break_conditions:
+        - comparison_operator: '='
+          id: 0dcbf179-29cf-4eed-bab5-94fec50c3990
+          value: '2025'
+          varType: number
+          variable_selector:
+          - '1754979524910'
+          - year
+        desc: ''
+        error_handle_mode: terminated
+        height: 464
+        logical_operator: and
+        loop_count: 10
+        loop_variables:
+        - id: ca43e695-1c11-4106-ad66-2d7a7ce28836
+          label: year
+          value: '2023'
+          value_type: constant
+          var_type: number
+        - id: 3a67e4ad-9fa1-49cb-8aaa-a40fdc1ac180
+          label: res
+          value: '[]'
+          value_type: constant
+          var_type: array[string]
+        selected: false
+        start_node_id: 1754979524910start
+        title: Loop
+        type: loop
+        width: 779
+      height: 464
+      id: '1754979524910'
+      position:
+        x: 384
+        y: 282
+      positionAbsolute:
+        x: 384
+        y: 282
+      selected: false
+      sourcePosition: right
+      targetPosition: left
+      type: custom
+      width: 779
+      zIndex: 1
+    - data:
+        desc: ''
+        isInLoop: true
+        selected: false
+        title: ''
+        type: loop-start
+      draggable: false
+      height: 48
+      id: 1754979524910start
+      parentId: '1754979524910'
+      position:
+        x: 24
+        y: 68
+      positionAbsolute:
+        x: 408
+        y: 350
+      selectable: false
+      sourcePosition: right
+      targetPosition: left
+      type: custom-loop-start
+      width: 44
+      zIndex: 1002
+    - data:
+        desc: ''
+        isInIteration: false
+        isInLoop: true
+        is_team_authorization: true
+        loop_id: '1754979524910'
+        output_schema: null
+        paramSchemas:
+        - auto_generate: null
+          default: null
+          form: llm
+          human_description:
+            en_US: The text query to be processed by the AI model.
+            ja_JP: The text query to be processed by the AI model.
+            pt_BR: The text query to be processed by the AI model.
+            zh_Hans: 要由 AI 模型处理的文本查询。
+          label:
+            en_US: Query
+            ja_JP: Query
+            pt_BR: Query
+            zh_Hans: 查询
+          llm_description: ''
+          max: null
+          min: null
+          name: query
+          options: []
+          placeholder: null
+          precision: null
+          required: true
+          scope: null
+          template: null
+          type: string
+        - auto_generate: null
+          default: sonar
+          form: form
+          human_description:
+            en_US: The Perplexity AI model to use for generating the response.
+            ja_JP: The Perplexity AI model to use for generating the response.
+            pt_BR: The Perplexity AI model to use for generating the response.
+            zh_Hans: 用于生成响应的 Perplexity AI 模型。
+          label:
+            en_US: Model Name
+            ja_JP: Model Name
+            pt_BR: Model Name
+            zh_Hans: 模型名称
+          llm_description: ''
+          max: null
+          min: null
+          name: model
+          options:
+          - icon: ''
+            label:
+              en_US: sonar
+              ja_JP: sonar
+              pt_BR: sonar
+              zh_Hans: sonar
+            value: sonar
+          - icon: ''
+            label:
+              en_US: sonar-pro
+              ja_JP: sonar-pro
+              pt_BR: sonar-pro
+              zh_Hans: sonar-pro
+            value: sonar-pro
+          - icon: ''
+            label:
+              en_US: sonar-reasoning
+              ja_JP: sonar-reasoning
+              pt_BR: sonar-reasoning
+              zh_Hans: sonar-reasoning
+            value: sonar-reasoning
+          - icon: ''
+            label:
+              en_US: sonar-reasoning-pro
+              ja_JP: sonar-reasoning-pro
+              pt_BR: sonar-reasoning-pro
+              zh_Hans: sonar-reasoning-pro
+            value: sonar-reasoning-pro
+          - icon: ''
+            label:
+              en_US: sonar-deep-research
+              ja_JP: sonar-deep-research
+              pt_BR: sonar-deep-research
+              zh_Hans: sonar-deep-research
+            value: sonar-deep-research
+          placeholder: null
+          precision: null
+          required: false
+          scope: null
+          template: null
+          type: select
+        - auto_generate: null
+          default: 4096
+          form: form
+          human_description:
+            en_US: The maximum number of tokens to generate in the response.
+            ja_JP: The maximum number of tokens to generate in the response.
+            pt_BR: O número máximo de tokens a serem gerados na resposta.
+            zh_Hans: 在响应中生成的最大令牌数。
+          label:
+            en_US: Max Tokens
+            ja_JP: Max Tokens
+            pt_BR: Máximo de Tokens
+            zh_Hans: 最大令牌数
+          llm_description: ''
+          max: 4096
+          min: 1
+          name: max_tokens
+          options: []
+          placeholder: null
+          precision: null
+          required: false
+          scope: null
+          template: null
+          type: number
+        - auto_generate: null
+          default: 0.7
+          form: form
+          human_description:
+            en_US: Controls randomness in the output. Lower values make the output
+              more focused and deterministic.
+            ja_JP: Controls randomness in the output. Lower values make the output
+              more focused and deterministic.
+            pt_BR: Controls randomness in the output. Lower values make the output
+              more focused and deterministic.
+            zh_Hans: 控制输出的随机性。较低的值使输出更加集中和确定。
+          label:
+            en_US: Temperature
+            ja_JP: Temperature
+            pt_BR: Temperatura
+            zh_Hans: 温度
+          llm_description: ''
+          max: 1
+          min: 0
+          name: temperature
+          options: []
+          placeholder: null
+          precision: null
+          required: false
+          scope: null
+          template: null
+          type: number
+        - auto_generate: null
+          default: 5
+          form: form
+          human_description:
+            en_US: The number of top results to consider for response generation.
+            ja_JP: The number of top results to consider for response generation.
+            pt_BR: The number of top results to consider for response generation.
+            zh_Hans: 用于生成响应的顶部结果数量。
+          label:
+            en_US: Top K
+            ja_JP: Top K
+            pt_BR: Top K
+            zh_Hans: 取样数量
+          llm_description: ''
+          max: 100
+          min: 1
+          name: top_k
+          options: []
+          placeholder: null
+          precision: null
+          required: false
+          scope: null
+          template: null
+          type: number
+        - auto_generate: null
+          default: 1
+          form: form
+          human_description:
+            en_US: Controls diversity via nucleus sampling.
+            ja_JP: Controls diversity via nucleus sampling.
+            pt_BR: Controls diversity via nucleus sampling.
+            zh_Hans: 通过核心采样控制多样性。
+          label:
+            en_US: Top P
+            ja_JP: Top P
+            pt_BR: Top P
+            zh_Hans: Top P
+          llm_description: ''
+          max: 1
+          min: 0.1
+          name: top_p
+          options: []
+          placeholder: null
+          precision: null
+          required: false
+          scope: null
+          template: null
+          type: number
+        - auto_generate: null
+          default: 0
+          form: form
+          human_description:
+            en_US: Positive values penalize new tokens based on whether they appear
+              in the text so far.
+            ja_JP: Positive values penalize new tokens based on whether they appear
+              in the text so far.
+            pt_BR: Positive values penalize new tokens based on whether they appear
+              in the text so far.
+            zh_Hans: 正值会根据新词元是否已经出现在文本中来对其进行惩罚。
+          label:
+            en_US: Presence Penalty
+            ja_JP: Presence Penalty
+            pt_BR: Presence Penalty
+            zh_Hans: 存在惩罚
+          llm_description: ''
+          max: 1
+          min: -1
+          name: presence_penalty
+          options: []
+          placeholder: null
+          precision: null
+          required: false
+          scope: null
+          template: null
+          type: number
+        - auto_generate: null
+          default: 1
+          form: form
+          human_description:
+            en_US: Positive values penalize new tokens based on their existing frequency
+              in the text so far.
+            ja_JP: Positive values penalize new tokens based on their existing frequency
+              in the text so far.
+            pt_BR: Positive values penalize new tokens based on their existing frequency
+              in the text so far.
+            zh_Hans: 正值会根据新词元在文本中已经出现的频率来对其进行惩罚。
+          label:
+            en_US: Frequency Penalty
+            ja_JP: Frequency Penalty
+            pt_BR: Frequency Penalty
+            zh_Hans: 频率惩罚
+          llm_description: ''
+          max: 1
+          min: 0.1
+          name: frequency_penalty
+          options: []
+          placeholder: null
+          precision: null
+          required: false
+          scope: null
+          template: null
+          type: number
+        - auto_generate: null
+          default: 0
+          form: form
+          human_description:
+            en_US: Whether to return images in the response.
+            ja_JP: Whether to return images in the response.
+            pt_BR: Whether to return images in the response.
+            zh_Hans: 是否在响应中返回图像。
+          label:
+            en_US: Return Images
+            ja_JP: Return Images
+            pt_BR: Return Images
+            zh_Hans: 返回图像
+          llm_description: ''
+          max: null
+          min: null
+          name: return_images
+          options: []
+          placeholder: null
+          precision: null
+          required: false
+          scope: null
+          template: null
+          type: boolean
+        - auto_generate: null
+          default: 0
+          form: form
+          human_description:
+            en_US: Whether to return related questions in the response.
+            ja_JP: Whether to return related questions in the response.
+            pt_BR: Whether to return related questions in the response.
+            zh_Hans: 是否在响应中返回相关问题。
+          label:
+            en_US: Return Related Questions
+            ja_JP: Return Related Questions
+            pt_BR: Return Related Questions
+            zh_Hans: 返回相关问题
+          llm_description: ''
+          max: null
+          min: null
+          name: return_related_questions
+          options: []
+          placeholder: null
+          precision: null
+          required: false
+          scope: null
+          template: null
+          type: boolean
+        - auto_generate: null
+          default: ''
+          form: form
+          human_description:
+            en_US: Domain to filter the search results. Use comma to separate multiple
+              domains. Up to 3 domains are supported.
+            ja_JP: Domain to filter the search results. Use comma to separate multiple
+              domains. Up to 3 domains are supported.
+            pt_BR: Domain to filter the search results. Use comma to separate multiple
+              domains. Up to 3 domains are supported.
+            zh_Hans: 用于过滤搜索结果的域名。使用逗号分隔多个域名。最多支持3个域名。
+          label:
+            en_US: Search Domain Filter
+            ja_JP: Search Domain Filter
+            pt_BR: Search Domain Filter
+            zh_Hans: 搜索域过滤器
+          llm_description: ''
+          max: null
+          min: null
+          name: search_domain_filter
+          options: []
+          placeholder: null
+          precision: null
+          required: false
+          scope: null
+          template: null
+          type: string
+        - auto_generate: null
+          default: month
+          form: form
+          human_description:
+            en_US: Filter for search results based on recency.
+            ja_JP: Filter for search results based on recency.
+            pt_BR: Filter for search results based on recency.
+            zh_Hans: 基于时间筛选搜索结果。
+          label:
+            en_US: Search Recency Filter
+            ja_JP: Search Recency Filter
+            pt_BR: Search Recency Filter
+            zh_Hans: 搜索时间过滤器
+          llm_description: ''
+          max: null
+          min: null
+          name: search_recency_filter
+          options:
+          - icon: ''
+            label:
+              en_US: Day
+              ja_JP: Day
+              pt_BR: Day
+              zh_Hans: 天
+            value: day
+          - icon: ''
+            label:
+              en_US: Week
+              ja_JP: Week
+              pt_BR: Week
+              zh_Hans: 周
+            value: week
+          - icon: ''
+            label:
+              en_US: Month
+              ja_JP: Month
+              pt_BR: Month
+              zh_Hans: 月
+            value: month
+          - icon: ''
+            label:
+              en_US: Year
+              ja_JP: Year
+              pt_BR: Year
+              zh_Hans: 年
+            value: year
+          placeholder: null
+          precision: null
+          required: false
+          scope: null
+          template: null
+          type: select
+        - auto_generate: null
+          default: low
+          form: form
+          human_description:
+            en_US: Determines how much search context is retrieved for the model.
+            ja_JP: Determines how much search context is retrieved for the model.
+            pt_BR: Determines how much search context is retrieved for the model.
+            zh_Hans: 确定模型检索的搜索上下文量。
+          label:
+            en_US: Search Context Size
+            ja_JP: Search Context Size
+            pt_BR: Search Context Size
+            zh_Hans: 搜索上下文大小
+          llm_description: ''
+          max: null
+          min: null
+          name: search_context_size
+          options:
+          - icon: ''
+            label:
+              en_US: Low
+              ja_JP: Low
+              pt_BR: Low
+              zh_Hans: 低
+            value: low
+          - icon: ''
+            label:
+              en_US: Medium
+              ja_JP: Medium
+              pt_BR: Medium
+              zh_Hans: 中等
+            value: medium
+          - icon: ''
+            label:
+              en_US: High
+              ja_JP: High
+              pt_BR: High
+              zh_Hans: 高
+            value: high
+          placeholder: null
+          precision: null
+          required: false
+          scope: null
+          template: null
+          type: select
+        params:
+          frequency_penalty: ''
+          max_tokens: ''
+          model: ''
+          presence_penalty: ''
+          query: ''
+          return_images: ''
+          return_related_questions: ''
+          search_context_size: ''
+          search_domain_filter: ''
+          search_recency_filter: ''
+          temperature: ''
+          top_k: ''
+          top_p: ''
+        provider_id: langgenius/perplexity/perplexity
+        provider_name: langgenius/perplexity/perplexity
+        provider_type: builtin
+        selected: true
+        title: Perplexity Search
+        tool_configurations:
+          frequency_penalty:
+            type: constant
+            value: 1
+          max_tokens:
+            type: constant
+            value: 4096
+          model:
+            type: constant
+            value: sonar
+          presence_penalty:
+            type: constant
+            value: 0
+          return_images:
+            type: constant
+            value: false
+          return_related_questions:
+            type: constant
+            value: false
+          search_context_size:
+            type: constant
+            value: low
+          search_domain_filter:
+            type: mixed
+            value: ''
+          search_recency_filter:
+            type: constant
+            value: month
+          temperature:
+            type: constant
+            value: 0.7
+          top_k:
+            type: constant
+            value: 5
+          top_p:
+            type: constant
+            value: 1
+        tool_description: Search information using Perplexity AI's language models.
+        tool_label: Perplexity Search
+        tool_name: perplexity
+        tool_node_version: '2'
+        tool_parameters:
+          query:
+            type: mixed
+            value: Dify.AI {{#1754979524910.year#}}
+        type: tool
+      height: 376
+      id: '1754979561786'
+      parentId: '1754979524910'
+      position:
+        x: 215
+        y: 68
+      positionAbsolute:
+        x: 599
+        y: 350
+      selected: true
+      sourcePosition: right
+      targetPosition: left
+      type: custom
+      width: 244
+      zIndex: 1002
+    - data:
+        desc: ''
+        isInIteration: false
+        isInLoop: true
+        items:
+        - input_type: constant
+          operation: +=
+          value: 1
+          variable_selector:
+          - '1754979524910'
+          - year
+          write_mode: over-write
+        - input_type: variable
+          operation: append
+          value:
+          - '1754979561786'
+          - text
+          variable_selector:
+          - '1754979524910'
+          - res
+          write_mode: over-write
+        loop_id: '1754979524910'
+        selected: false
+        title: Variable Assigner
+        type: assigner
+        version: '2'
+      height: 112
+      id: '1754979613854'
+      parentId: '1754979524910'
+      position:
+        x: 510
+        y: 103
+      positionAbsolute:
+        x: 894
+        y: 385
+      selected: false
+      sourcePosition: right
+      targetPosition: left
+      type: custom
+      width: 244
+      zIndex: 1002
+    - data:
+        answer: '{{#1754979524910.res#}}'
+        desc: ''
+        selected: false
+        title: Answer
+        type: answer
+        variables: []
+      height: 105
+      id: '1754979638585'
+      position:
+        x: 1223
+        y: 282
+      positionAbsolute:
+        x: 1223
+        y: 282
+      selected: false
+      sourcePosition: right
+      targetPosition: left
+      type: custom
+      width: 244
+    viewport:
+      x: 30.39180609762718
+      y: -45.20947076791785
+      zoom: 0.784584097896752

dify/api/tests/fixtures/workflow/simple_passthrough_workflow.yml

@@ -0,0 +1,124 @@
+app:
+  description: 'This workflow receive a "query" and output the same content.'
+  icon: 🤖
+  icon_background: '#FFEAD5'
+  mode: workflow
+  name: echo
+  use_icon_as_answer_icon: false
+dependencies: []
+kind: app
+version: 0.3.1
+workflow:
+  conversation_variables: []
+  environment_variables: []
+  features:
+    file_upload:
+      allowed_file_extensions:
+      - .JPG
+      - .JPEG
+      - .PNG
+      - .GIF
+      - .WEBP
+      - .SVG
+      allowed_file_types:
+      - image
+      allowed_file_upload_methods:
+      - local_file
+      - remote_url
+      enabled: false
+      fileUploadConfig:
+        audio_file_size_limit: 50
+        batch_count_limit: 5
+        file_size_limit: 15
+        image_file_size_limit: 10
+        video_file_size_limit: 100
+        workflow_file_upload_limit: 10
+      image:
+        enabled: false
+        number_limits: 3
+        transfer_methods:
+        - local_file
+        - remote_url
+      number_limits: 3
+    opening_statement: ''
+    retriever_resource:
+      enabled: true
+    sensitive_word_avoidance:
+      enabled: false
+    speech_to_text:
+      enabled: false
+    suggested_questions: []
+    suggested_questions_after_answer:
+      enabled: false
+    text_to_speech:
+      enabled: false
+      language: ''
+      voice: ''
+  graph:
+    edges:
+    - data:
+        isInIteration: false
+        isInLoop: false
+        sourceType: start
+        targetType: end
+      id: 1754154032319-source-1754154034161-target
+      source: '1754154032319'
+      sourceHandle: source
+      target: '1754154034161'
+      targetHandle: target
+      type: custom
+      zIndex: 0
+    nodes:
+    - data:
+        desc: ''
+        selected: false
+        title: Start
+        type: start
+        variables:
+        - label: query
+          max_length: null
+          options: []
+          required: true
+          type: text-input
+          variable: query
+      height: 90
+      id: '1754154032319'
+      position:
+        x: 30
+        y: 227
+      positionAbsolute:
+        x: 30
+        y: 227
+      selected: false
+      sourcePosition: right
+      targetPosition: left
+      type: custom
+      width: 244
+    - data:
+        desc: ''
+        outputs:
+        - value_selector:
+          - '1754154032319'
+          - query
+          value_type: string
+          variable: query
+        selected: true
+        title: End
+        type: end
+      height: 90
+      id: '1754154034161'
+      position:
+        x: 334
+        y: 227
+      positionAbsolute:
+        x: 334
+        y: 227
+      selected: true
+      sourcePosition: right
+      targetPosition: left
+      type: custom
+      width: 244
+    viewport:
+      x: 0
+      y: 0
+      zoom: 0.7

dify/api/tests/fixtures/workflow/test-answer-order.yml

@@ -0,0 +1,222 @@
+app:
+  description: 'this is a chatflow with 2 answer nodes.
+
+
+    it''s outouts should like:
+
+
+    ```
+
+    --- answer 1 ---
+
+
+    foo
+
+    --- answer 2 ---
+
+
+    <llm''s outputs>
+
+    ```'
+  icon: 🤖
+  icon_background: '#FFEAD5'
+  mode: advanced-chat
+  name: test-answer-order
+  use_icon_as_answer_icon: false
+dependencies:
+- current_identifier: null
+  type: marketplace
+  value:
+    marketplace_plugin_unique_identifier: langgenius/openai:0.2.6@e2665624a156f52160927bceac9e169bd7e5ae6b936ae82575e14c90af390e6e
+    version: null
+kind: app
+version: 0.4.0
+workflow:
+  conversation_variables: []
+  environment_variables: []
+  features:
+    file_upload:
+      allowed_file_extensions:
+      - .JPG
+      - .JPEG
+      - .PNG
+      - .GIF
+      - .WEBP
+      - .SVG
+      allowed_file_types:
+      - image
+      allowed_file_upload_methods:
+      - local_file
+      - remote_url
+      enabled: false
+      fileUploadConfig:
+        audio_file_size_limit: 50
+        batch_count_limit: 5
+        file_size_limit: 15
+        image_file_size_limit: 10
+        video_file_size_limit: 100
+        workflow_file_upload_limit: 10
+      image:
+        enabled: false
+        number_limits: 3
+        transfer_methods:
+        - local_file
+        - remote_url
+      number_limits: 3
+    opening_statement: ''
+    retriever_resource:
+      enabled: true
+    sensitive_word_avoidance:
+      enabled: false
+    speech_to_text:
+      enabled: false
+    suggested_questions: []
+    suggested_questions_after_answer:
+      enabled: false
+    text_to_speech:
+      enabled: false
+      language: ''
+      voice: ''
+  graph:
+    edges:
+    - data:
+        isInIteration: false
+        isInLoop: false
+        sourceType: answer
+        targetType: answer
+      id: 1759052466526-source-1759052469368-target
+      source: '1759052466526'
+      sourceHandle: source
+      target: '1759052469368'
+      targetHandle: target
+      type: custom
+      zIndex: 0
+    - data:
+        isInIteration: false
+        isInLoop: false
+        sourceType: start
+        targetType: llm
+      id: 1759052439553-source-1759052580454-target
+      source: '1759052439553'
+      sourceHandle: source
+      target: '1759052580454'
+      targetHandle: target
+      type: custom
+      zIndex: 0
+    - data:
+        isInIteration: false
+        isInLoop: false
+        sourceType: llm
+        targetType: answer
+      id: 1759052580454-source-1759052466526-target
+      source: '1759052580454'
+      sourceHandle: source
+      target: '1759052466526'
+      targetHandle: target
+      type: custom
+      zIndex: 0
+    nodes:
+    - data:
+        selected: false
+        title: Start
+        type: start
+        variables: []
+      height: 52
+      id: '1759052439553'
+      position:
+        x: 30
+        y: 242
+      positionAbsolute:
+        x: 30
+        y: 242
+      sourcePosition: right
+      targetPosition: left
+      type: custom
+      width: 242
+    - data:
+        answer: '--- answer 1 ---
+
+
+          foo
+
+          '
+        selected: false
+        title: Answer
+        type: answer
+        variables: []
+      height: 100
+      id: '1759052466526'
+      position:
+        x: 632
+        y: 242
+      positionAbsolute:
+        x: 632
+        y: 242
+      selected: true
+      sourcePosition: right
+      targetPosition: left
+      type: custom
+      width: 242
+    - data:
+        answer: '--- answer 2 ---
+
+
+          {{#1759052580454.text#}}
+
+          '
+        selected: false
+        title: Answer 2
+        type: answer
+        variables: []
+      height: 103
+      id: '1759052469368'
+      position:
+        x: 934
+        y: 242
+      positionAbsolute:
+        x: 934
+        y: 242
+      selected: false
+      sourcePosition: right
+      targetPosition: left
+      type: custom
+      width: 242
+    - data:
+        context:
+          enabled: false
+          variable_selector: []
+        model:
+          completion_params:
+            temperature: 0.7
+          mode: chat
+          name: gpt-4o
+          provider: langgenius/openai/openai
+        prompt_template:
+        - id: 5c1d873b-06b2-4dce-939e-672882bbd7c0
+          role: system
+          text: ''
+        - role: user
+          text: '{{#sys.query#}}'
+        selected: false
+        title: LLM
+        type: llm
+        vision:
+          enabled: false
+      height: 88
+      id: '1759052580454'
+      position:
+        x: 332
+        y: 242
+      positionAbsolute:
+        x: 332
+        y: 242
+      selected: false
+      sourcePosition: right
+      targetPosition: left
+      type: custom
+      width: 242
+    viewport:
+      x: 126.2797574512839
+      y: 289.55932160537446
+      zoom: 1.0743222672006216
+  rag_pipeline_variables: []

dify/api/tests/fixtures/workflow/test_complex_branch.yml

@@ -0,0 +1,259 @@
+app:
+  description: "if sys.query == 'hello':\n    print(\"contains 'hello'\" + \"{{#llm.text#}}\"\
+    )\nelse:\n    print(\"{{#llm.text#}}\")"
+  icon: 🤖
+  icon_background: '#FFEAD5'
+  mode: advanced-chat
+  name: test_complex_branch
+  use_icon_as_answer_icon: false
+dependencies:
+- current_identifier: null
+  type: marketplace
+  value:
+    marketplace_plugin_unique_identifier: langgenius/openai:0.0.30@1f5ecdef108418a467e54da2dcf5de2cf22b47632abc8633194ac9fb96317ede
+kind: app
+version: 0.3.1
+workflow:
+  conversation_variables: []
+  environment_variables: []
+  features:
+    file_upload:
+      allowed_file_extensions:
+      - .JPG
+      - .JPEG
+      - .PNG
+      - .GIF
+      - .WEBP
+      - .SVG
+      allowed_file_types:
+      - image
+      allowed_file_upload_methods:
+      - local_file
+      - remote_url
+      enabled: false
+      fileUploadConfig:
+        audio_file_size_limit: 50
+        batch_count_limit: 5
+        file_size_limit: 15
+        image_file_size_limit: 10
+        video_file_size_limit: 100
+        workflow_file_upload_limit: 10
+      image:
+        enabled: false
+        number_limits: 3
+        transfer_methods:
+        - local_file
+        - remote_url
+      number_limits: 3
+    opening_statement: ''
+    retriever_resource:
+      enabled: true
+    sensitive_word_avoidance:
+      enabled: false
+    speech_to_text:
+      enabled: false
+    suggested_questions: []
+    suggested_questions_after_answer:
+      enabled: false
+    text_to_speech:
+      enabled: false
+      language: ''
+      voice: ''
+  graph:
+    edges:
+    - data:
+        isInIteration: false
+        isInLoop: false
+        sourceType: start
+        targetType: if-else
+      id: 1754336720803-source-1755502773326-target
+      source: '1754336720803'
+      sourceHandle: source
+      target: '1755502773326'
+      targetHandle: target
+      type: custom
+      zIndex: 0
+    - data:
+        isInLoop: false
+        sourceType: start
+        targetType: llm
+      id: 1754336720803-source-1755502777322-target
+      source: '1754336720803'
+      sourceHandle: source
+      target: '1755502777322'
+      targetHandle: target
+      type: custom
+      zIndex: 0
+    - data:
+        isInIteration: false
+        isInLoop: false
+        sourceType: if-else
+        targetType: answer
+      id: 1755502773326-true-1755502793218-target
+      source: '1755502773326'
+      sourceHandle: 'true'
+      target: '1755502793218'
+      targetHandle: target
+      type: custom
+      zIndex: 0
+    - data:
+        isInIteration: false
+        isInLoop: false
+        sourceType: if-else
+        targetType: answer
+      id: 1755502773326-false-1755502801806-target
+      source: '1755502773326'
+      sourceHandle: 'false'
+      target: '1755502801806'
+      targetHandle: target
+      type: custom
+      zIndex: 0
+    - data:
+        isInLoop: false
+        sourceType: llm
+        targetType: answer
+      id: 1755502777322-source-1755502801806-target
+      source: '1755502777322'
+      sourceHandle: source
+      target: '1755502801806'
+      targetHandle: target
+      type: custom
+      zIndex: 0
+    nodes:
+    - data:
+        desc: ''
+        selected: false
+        title: Start
+        type: start
+        variables: []
+      height: 54
+      id: '1754336720803'
+      position:
+        x: 30
+        y: 252.5
+      positionAbsolute:
+        x: 30
+        y: 252.5
+      selected: false
+      sourcePosition: right
+      targetPosition: left
+      type: custom
+      width: 244
+    - data:
+        cases:
+        - case_id: 'true'
+          conditions:
+          - comparison_operator: contains
+            id: b3737f91-20e7-491e-92a7-54823d5edd92
+            value: hello
+            varType: string
+            variable_selector:
+            - sys
+            - query
+          id: 'true'
+          logical_operator: and
+        desc: ''
+        selected: false
+        title: IF/ELSE
+        type: if-else
+      height: 126
+      id: '1755502773326'
+      position:
+        x: 334
+        y: 252.5
+      positionAbsolute:
+        x: 334
+        y: 252.5
+      selected: false
+      sourcePosition: right
+      targetPosition: left
+      type: custom
+      width: 244
+    - data:
+        context:
+          enabled: false
+          variable_selector: []
+        desc: ''
+        memory:
+          query_prompt_template: '{{#sys.query#}}
+
+
+            {{#sys.files#}}'
+          role_prefix:
+            assistant: ''
+            user: ''
+          window:
+            enabled: false
+            size: 50
+        model:
+          completion_params:
+            temperature: 0.7
+          mode: chat
+          name: chatgpt-4o-latest
+          provider: langgenius/openai/openai
+        prompt_template:
+        - role: system
+          text: ''
+        selected: false
+        title: LLM
+        type: llm
+        variables: []
+        vision:
+          enabled: false
+      height: 90
+      id: '1755502777322'
+      position:
+        x: 334
+        y: 483.6689693406501
+      positionAbsolute:
+        x: 334
+        y: 483.6689693406501
+      selected: false
+      sourcePosition: right
+      targetPosition: left
+      type: custom
+      width: 244
+    - data:
+        answer: contains 'hello'
+        desc: ''
+        selected: false
+        title: Answer
+        type: answer
+        variables: []
+      height: 102
+      id: '1755502793218'
+      position:
+        x: 694.1985482199078
+        y: 161.30990288845152
+      positionAbsolute:
+        x: 694.1985482199078
+        y: 161.30990288845152
+      selected: false
+      sourcePosition: right
+      targetPosition: left
+      type: custom
+      width: 244
+    - data:
+        answer: '{{#1755502777322.text#}}'
+        desc: ''
+        selected: false
+        title: Answer 2
+        type: answer
+        variables: []
+      height: 105
+      id: '1755502801806'
+      position:
+        x: 694.1985482199078
+        y: 410.4655994626136
+      positionAbsolute:
+        x: 694.1985482199078
+        y: 410.4655994626136
+      selected: true
+      sourcePosition: right
+      targetPosition: left
+      type: custom
+      width: 244
+    viewport:
+      x: 101.25550613189648
+      y: -63.115847717334475
+      zoom: 0.9430848603527678

dify/api/tests/fixtures/workflow/test_streaming_conversation_variables.yml

@@ -0,0 +1,163 @@
+app:
+  description: This chatflow assign sys.query to a conversation variable "str", then
+    answer "str".
+  icon: 🤖
+  icon_background: '#FFEAD5'
+  mode: advanced-chat
+  name: test_streaming_conversation_variables
+  use_icon_as_answer_icon: false
+dependencies: []
+kind: app
+version: 0.3.1
+workflow:
+  conversation_variables:
+  - description: ''
+    id: e208ec58-4503-48a9-baf8-17aae67e5fa0
+    name: str
+    selector:
+    - conversation
+    - str
+    value: default
+    value_type: string
+  environment_variables: []
+  features:
+    file_upload:
+      allowed_file_extensions:
+      - .JPG
+      - .JPEG
+      - .PNG
+      - .GIF
+      - .WEBP
+      - .SVG
+      allowed_file_types:
+      - image
+      allowed_file_upload_methods:
+      - local_file
+      - remote_url
+      enabled: false
+      fileUploadConfig:
+        audio_file_size_limit: 50
+        batch_count_limit: 5
+        file_size_limit: 15
+        image_file_size_limit: 10
+        video_file_size_limit: 100
+        workflow_file_upload_limit: 10
+      image:
+        enabled: false
+        number_limits: 3
+        transfer_methods:
+        - local_file
+        - remote_url
+      number_limits: 3
+    opening_statement: ''
+    retriever_resource:
+      enabled: true
+    sensitive_word_avoidance:
+      enabled: false
+    speech_to_text:
+      enabled: false
+    suggested_questions: []
+    suggested_questions_after_answer:
+      enabled: false
+    text_to_speech:
+      enabled: false
+      language: ''
+      voice: ''
+  graph:
+    edges:
+    - data:
+        isInIteration: false
+        isInLoop: false
+        sourceType: start
+        targetType: assigner
+      id: 1755316734941-source-1755316749068-target
+      source: '1755316734941'
+      sourceHandle: source
+      target: '1755316749068'
+      targetHandle: target
+      type: custom
+      zIndex: 0
+    - data:
+        isInLoop: false
+        sourceType: assigner
+        targetType: answer
+      id: 1755316749068-source-answer-target
+      source: '1755316749068'
+      sourceHandle: source
+      target: answer
+      targetHandle: target
+      type: custom
+      zIndex: 0
+    nodes:
+    - data:
+        desc: ''
+        selected: false
+        title: Start
+        type: start
+        variables: []
+      height: 54
+      id: '1755316734941'
+      position:
+        x: 30
+        y: 253
+      positionAbsolute:
+        x: 30
+        y: 253
+      selected: false
+      sourcePosition: right
+      targetPosition: left
+      type: custom
+      width: 244
+    - data:
+        answer: '{{#conversation.str#}}'
+        desc: ''
+        selected: false
+        title: Answer
+        type: answer
+        variables: []
+      height: 106
+      id: answer
+      position:
+        x: 638
+        y: 253
+      positionAbsolute:
+        x: 638
+        y: 253
+      selected: true
+      sourcePosition: right
+      targetPosition: left
+      type: custom
+      width: 244
+    - data:
+        desc: ''
+        items:
+        - input_type: variable
+          operation: over-write
+          value:
+          - sys
+          - query
+          variable_selector:
+          - conversation
+          - str
+          write_mode: over-write
+        selected: false
+        title: Variable Assigner
+        type: assigner
+        version: '2'
+      height: 86
+      id: '1755316749068'
+      position:
+        x: 334
+        y: 253
+      positionAbsolute:
+        x: 334
+        y: 253
+      selected: false
+      sourcePosition: right
+      targetPosition: left
+      type: custom
+      width: 244
+    viewport:
+      x: 0
+      y: 0
+      zoom: 0.7

dify/api/tests/fixtures/workflow/update-conversation-variable-in-iteration.yml

@@ -0,0 +1,316 @@
+app:
+  description: 'This chatflow receives a sys.query, writes it into the `answer` variable,
+    and then outputs the `answer` variable.
+
+
+    `answer` is a conversation variable with a blank default value; it will be updated
+    in an iteration node.
+
+
+    if this chatflow works correctly, it will output the `sys.query` as the same.'
+  icon: 🤖
+  icon_background: '#FFEAD5'
+  mode: advanced-chat
+  name: update-conversation-variable-in-iteration
+  use_icon_as_answer_icon: false
+dependencies: []
+kind: app
+version: 0.4.0
+workflow:
+  conversation_variables:
+  - description: ''
+    id: c30af82d-b2ec-417d-a861-4dd78584faa4
+    name: answer
+    selector:
+    - conversation
+    - answer
+    value: ''
+    value_type: string
+  environment_variables: []
+  features:
+    file_upload:
+      allowed_file_extensions:
+      - .JPG
+      - .JPEG
+      - .PNG
+      - .GIF
+      - .WEBP
+      - .SVG
+      allowed_file_types:
+      - image
+      allowed_file_upload_methods:
+      - local_file
+      - remote_url
+      enabled: false
+      fileUploadConfig:
+        audio_file_size_limit: 50
+        batch_count_limit: 5
+        file_size_limit: 15
+        image_file_size_limit: 10
+        video_file_size_limit: 100
+        workflow_file_upload_limit: 10
+      image:
+        enabled: false
+        number_limits: 3
+        transfer_methods:
+        - local_file
+        - remote_url
+      number_limits: 3
+    opening_statement: ''
+    retriever_resource:
+      enabled: true
+    sensitive_word_avoidance:
+      enabled: false
+    speech_to_text:
+      enabled: false
+    suggested_questions: []
+    suggested_questions_after_answer:
+      enabled: false
+    text_to_speech:
+      enabled: false
+      language: ''
+      voice: ''
+  graph:
+    edges:
+    - data:
+        isInIteration: false
+        isInLoop: false
+        sourceType: start
+        targetType: code
+      id: 1759032354471-source-1759032363865-target
+      source: '1759032354471'
+      sourceHandle: source
+      target: '1759032363865'
+      targetHandle: target
+      type: custom
+      zIndex: 0
+    - data:
+        isInIteration: false
+        isInLoop: false
+        sourceType: code
+        targetType: iteration
+      id: 1759032363865-source-1759032379989-target
+      source: '1759032363865'
+      sourceHandle: source
+      target: '1759032379989'
+      targetHandle: target
+      type: custom
+      zIndex: 0
+    - data:
+        isInIteration: true
+        isInLoop: false
+        iteration_id: '1759032379989'
+        sourceType: iteration-start
+        targetType: assigner
+      id: 1759032379989start-source-1759032394460-target
+      source: 1759032379989start
+      sourceHandle: source
+      target: '1759032394460'
+      targetHandle: target
+      type: custom
+      zIndex: 1002
+    - data:
+        isInIteration: false
+        isInLoop: false
+        sourceType: iteration
+        targetType: answer
+      id: 1759032379989-source-1759032410331-target
+      source: '1759032379989'
+      sourceHandle: source
+      target: '1759032410331'
+      targetHandle: target
+      type: custom
+      zIndex: 0
+    - data:
+        isInIteration: true
+        isInLoop: false
+        iteration_id: '1759032379989'
+        sourceType: assigner
+        targetType: code
+      id: 1759032394460-source-1759032476318-target
+      source: '1759032394460'
+      sourceHandle: source
+      target: '1759032476318'
+      targetHandle: target
+      type: custom
+      zIndex: 1002
+    nodes:
+    - data:
+        selected: false
+        title: Start
+        type: start
+        variables: []
+      height: 52
+      id: '1759032354471'
+      position:
+        x: 30
+        y: 302
+      positionAbsolute:
+        x: 30
+        y: 302
+      selected: false
+      sourcePosition: right
+      targetPosition: left
+      type: custom
+      width: 242
+    - data:
+        code: "\ndef main():\n    return {\n        \"result\": [1],\n    }\n"
+        code_language: python3
+        outputs:
+          result:
+            children: null
+            type: array[number]
+        selected: false
+        title: Code
+        type: code
+        variables: []
+      height: 52
+      id: '1759032363865'
+      position:
+        x: 332
+        y: 302
+      positionAbsolute:
+        x: 332
+        y: 302
+      sourcePosition: right
+      targetPosition: left
+      type: custom
+      width: 242
+    - data:
+        error_handle_mode: terminated
+        height: 204
+        is_parallel: false
+        iterator_input_type: array[number]
+        iterator_selector:
+        - '1759032363865'
+        - result
+        output_selector:
+        - '1759032476318'
+        - result
+        output_type: array[string]
+        parallel_nums: 10
+        selected: false
+        start_node_id: 1759032379989start
+        title: Iteration
+        type: iteration
+        width: 808
+      height: 204
+      id: '1759032379989'
+      position:
+        x: 634
+        y: 302
+      positionAbsolute:
+        x: 634
+        y: 302
+      selected: true
+      sourcePosition: right
+      targetPosition: left
+      type: custom
+      width: 808
+      zIndex: 1
+    - data:
+        desc: ''
+        isInIteration: true
+        selected: false
+        title: ''
+        type: iteration-start
+      draggable: false
+      height: 48
+      id: 1759032379989start
+      parentId: '1759032379989'
+      position:
+        x: 60
+        y: 78
+      positionAbsolute:
+        x: 694
+        y: 380
+      selectable: false
+      sourcePosition: right
+      targetPosition: left
+      type: custom-iteration-start
+      width: 44
+      zIndex: 1002
+    - data:
+        isInIteration: true
+        isInLoop: false
+        items:
+        - input_type: variable
+          operation: over-write
+          value:
+          - sys
+          - query
+          variable_selector:
+          - conversation
+          - answer
+          write_mode: over-write
+        iteration_id: '1759032379989'
+        selected: false
+        title: Variable Assigner
+        type: assigner
+        version: '2'
+      height: 84
+      id: '1759032394460'
+      parentId: '1759032379989'
+      position:
+        x: 204
+        y: 60
+      positionAbsolute:
+        x: 838
+        y: 362
+      sourcePosition: right
+      targetPosition: left
+      type: custom
+      width: 242
+      zIndex: 1002
+    - data:
+        answer: '{{#conversation.answer#}}'
+        selected: false
+        title: Answer
+        type: answer
+        variables: []
+      height: 104
+      id: '1759032410331'
+      position:
+        x: 1502
+        y: 302
+      positionAbsolute:
+        x: 1502
+        y: 302
+      selected: false
+      sourcePosition: right
+      targetPosition: left
+      type: custom
+      width: 242
+    - data:
+        code: "\ndef main():\n    return {\n        \"result\": '',\n    }\n"
+        code_language: python3
+        isInIteration: true
+        isInLoop: false
+        iteration_id: '1759032379989'
+        outputs:
+          result:
+            children: null
+            type: string
+        selected: false
+        title: Code 2
+        type: code
+        variables: []
+      height: 52
+      id: '1759032476318'
+      parentId: '1759032379989'
+      position:
+        x: 506
+        y: 76
+      positionAbsolute:
+        x: 1140
+        y: 378
+      sourcePosition: right
+      targetPosition: left
+      type: custom
+      width: 242
+      zIndex: 1002
+    viewport:
+      x: 120.39999999999998
+      y: 85.20000000000005
+      zoom: 0.7
+  rag_pipeline_variables: []