dify

dify/api/controllers/console/explore/workflow.py

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+import logging
+
+from flask_restx import reqparse
+from werkzeug.exceptions import InternalServerError
+
+from controllers.console.app.error import (
+    CompletionRequestError,
+    ProviderModelCurrentlyNotSupportError,
+    ProviderNotInitializeError,
+    ProviderQuotaExceededError,
+)
+from controllers.console.explore.error import NotWorkflowAppError
+from controllers.console.explore.wraps import InstalledAppResource
+from controllers.web.error import InvokeRateLimitError as InvokeRateLimitHttpError
+from core.app.apps.base_app_queue_manager import AppQueueManager
+from core.app.entities.app_invoke_entities import InvokeFrom
+from core.errors.error import (
+    ModelCurrentlyNotSupportError,
+    ProviderTokenNotInitError,
+    QuotaExceededError,
+)
+from core.model_runtime.errors.invoke import InvokeError
+from core.workflow.graph_engine.manager import GraphEngineManager
+from libs import helper
+from libs.login import current_account_with_tenant
+from models.model import AppMode, InstalledApp
+from services.app_generate_service import AppGenerateService
+from services.errors.llm import InvokeRateLimitError
+
+from .. import console_ns
+
+logger = logging.getLogger(__name__)
+
+
+@console_ns.route("/installed-apps/<uuid:installed_app_id>/workflows/run")
+class InstalledAppWorkflowRunApi(InstalledAppResource):
+    def post(self, installed_app: InstalledApp):
+        """
+        Run workflow
+        """
+        current_user, _ = current_account_with_tenant()
+        app_model = installed_app.app
+        if not app_model:
+            raise NotWorkflowAppError()
+        app_mode = AppMode.value_of(app_model.mode)
+        if app_mode != AppMode.WORKFLOW:
+            raise NotWorkflowAppError()
+
+        parser = (
+            reqparse.RequestParser()
+            .add_argument("inputs", type=dict, required=True, nullable=False, location="json")
+            .add_argument("files", type=list, required=False, location="json")
+        )
+        args = parser.parse_args()
+        try:
+            response = AppGenerateService.generate(
+                app_model=app_model, user=current_user, args=args, invoke_from=InvokeFrom.EXPLORE, streaming=True
+            )
+
+            return helper.compact_generate_response(response)
+        except ProviderTokenNotInitError as ex:
+            raise ProviderNotInitializeError(ex.description)
+        except QuotaExceededError:
+            raise ProviderQuotaExceededError()
+        except ModelCurrentlyNotSupportError:
+            raise ProviderModelCurrentlyNotSupportError()
+        except InvokeError as e:
+            raise CompletionRequestError(e.description)
+        except InvokeRateLimitError as ex:
+            raise InvokeRateLimitHttpError(ex.description)
+        except ValueError as e:
+            raise e
+        except Exception:
+            logger.exception("internal server error.")
+            raise InternalServerError()
+
+
+@console_ns.route("/installed-apps/<uuid:installed_app_id>/workflows/tasks/<string:task_id>/stop")
+class InstalledAppWorkflowTaskStopApi(InstalledAppResource):
+    def post(self, installed_app: InstalledApp, task_id: str):
+        """
+        Stop workflow task
+        """
+        app_model = installed_app.app
+        if not app_model:
+            raise NotWorkflowAppError()
+        app_mode = AppMode.value_of(app_model.mode)
+        if app_mode != AppMode.WORKFLOW:
+            raise NotWorkflowAppError()
+
+        # Stop using both mechanisms for backward compatibility
+        # Legacy stop flag mechanism (without user check)
+        AppQueueManager.set_stop_flag_no_user_check(task_id)
+
+        # New graph engine command channel mechanism
+        GraphEngineManager.send_stop_command(task_id)
+
+        return {"result": "success"}