dify

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

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+from flask_restx import marshal_with
+
+from controllers.common import fields
+from controllers.console import console_ns
+from controllers.console.app.error import AppUnavailableError
+from controllers.console.explore.wraps import InstalledAppResource
+from core.app.app_config.common.parameters_mapping import get_parameters_from_feature_dict
+from models.model import AppMode, InstalledApp
+from services.app_service import AppService
+
+
+@console_ns.route("/installed-apps/<uuid:installed_app_id>/parameters", endpoint="installed_app_parameters")
+class AppParameterApi(InstalledAppResource):
+    """Resource for app variables."""
+
+    @marshal_with(fields.parameters_fields)
+    def get(self, installed_app: InstalledApp):
+        """Retrieve app parameters."""
+        app_model = installed_app.app
+
+        if app_model is None:
+            raise AppUnavailableError()
+
+        if app_model.mode in {AppMode.ADVANCED_CHAT, AppMode.WORKFLOW}:
+            workflow = app_model.workflow
+            if workflow is None:
+                raise AppUnavailableError()
+
+            features_dict = workflow.features_dict
+            user_input_form = workflow.user_input_form(to_old_structure=True)
+        else:
+            app_model_config = app_model.app_model_config
+            if app_model_config is None:
+                raise AppUnavailableError()
+
+            features_dict = app_model_config.to_dict()
+
+            user_input_form = features_dict.get("user_input_form", [])
+
+        return get_parameters_from_feature_dict(features_dict=features_dict, user_input_form=user_input_form)
+
+
+@console_ns.route("/installed-apps/<uuid:installed_app_id>/meta", endpoint="installed_app_meta")
+class ExploreAppMetaApi(InstalledAppResource):
+    def get(self, installed_app: InstalledApp):
+        """Get app meta"""
+        app_model = installed_app.app
+        if not app_model:
+            raise ValueError("App not found")
+        return AppService().get_app_meta(app_model)