add workflow logics

api/constants/model_template.py

 import json
 
 model_templates = {
-    # completion default mode
-    'completion_default': {
+    # workflow default mode
+    'workflow_default': {
         'app': {
-            'mode': 'completion',
+            'mode': 'workflow',
             'enable_site': True,
             'enable_api': True,
             'is_demo': False,
@@ -15,24 +15,7 @@ model_templates = {
         'model_config': {
             'provider': '',
             'model_id': '',
-            'configs': {},
-            'model': json.dumps({
-                "provider": "openai",
-                "name": "gpt-3.5-turbo-instruct",
-                "mode": "completion",
-                "completion_params": {}
-            }),
-            'user_input_form': json.dumps([
-                {
-                    "paragraph": {
-                        "label": "Query",
-                        "variable": "query",
-                        "required": True,
-                        "default": ""
-                    }
-                }
-            ]),
-            'pre_prompt': '{{query}}'
+            'configs': {}
         }
     },
 
@@ -48,14 +31,70 @@ model_templates = {
             'status': 'normal'
         },
         'model_config': {
-            'provider': '',
-            'model_id': '',
-            'configs': {},
+            'provider': 'openai',
+            'model_id': 'gpt-4',
+            'configs': {
+                'prompt_template': '',
+                'prompt_variables': [],
+                'completion_params': {
+                    'max_token': 512,
+                    'temperature': 1,
+                    'top_p': 1,
+                    'presence_penalty': 0,
+                    'frequency_penalty': 0,
+                }
+            },
             'model': json.dumps({
                 "provider": "openai",
-                "name": "gpt-3.5-turbo",
+                "name": "gpt-4",
                 "mode": "chat",
-                "completion_params": {}
+                "completion_params": {
+                    "max_tokens": 512,
+                    "temperature": 1,
+                    "top_p": 1,
+                    "presence_penalty": 0,
+                    "frequency_penalty": 0
+                }
+            })
+        }
+    },
+
+    # agent default mode
+    'agent_default': {
+        'app': {
+            'mode': 'agent',
+            'enable_site': True,
+            'enable_api': True,
+            'is_demo': False,
+            'api_rpm': 0,
+            'api_rph': 0,
+            'status': 'normal'
+        },
+        'model_config': {
+            'provider': 'openai',
+            'model_id': 'gpt-4',
+            'configs': {
+                'prompt_template': '',
+                'prompt_variables': [],
+                'completion_params': {
+                    'max_token': 512,
+                    'temperature': 1,
+                    'top_p': 1,
+                    'presence_penalty': 0,
+                    'frequency_penalty': 0,
+                }
+            },
+            'model': json.dumps({
+                "provider": "openai",
+                "name": "gpt-4",
+                "mode": "chat",
+                "completion_params": {
+                    "max_tokens": 512,
+                    "temperature": 1,
+                    "top_p": 1,
+                    "presence_penalty": 0,
+                    "frequency_penalty": 0
+                }
             })
         }
     },

api/controllers/console/__init__.py

@@ -5,7 +5,7 @@ bp = Blueprint('console', __name__, url_prefix='/console/api')
 api = ExternalApi(bp)
 
 # Import other controllers
-from . import admin, apikey, extension, feature, setup, version
+from . import admin, apikey, extension, feature, setup, version, ping
 # Import app controllers
 from .app import (advanced_prompt_template, annotation, app, audio, completion, conversation, generator, message,
                   model_config, site, statistic, workflow)

api/controllers/console/app/app.py

@@ -26,7 +26,7 @@ from fields.app_fields import (
     template_list_fields,
 )
 from libs.login import login_required
-from models.model import App, AppModelConfig, Site
+from models.model import App, AppModelConfig, Site, AppMode
 from services.app_model_config_service import AppModelConfigService
 from core.tools.utils.configuration import ToolParameterConfigurationManager
 from core.tools.tool_manager import ToolManager
@@ -80,7 +80,7 @@ class AppListApi(Resource):
         """Create app"""
         parser = reqparse.RequestParser()
         parser.add_argument('name', type=str, required=True, location='json')
-        parser.add_argument('mode', type=str, choices=['completion', 'chat', 'assistant'], location='json')
+        parser.add_argument('mode', type=str, choices=[mode.value for mode in AppMode], location='json')
         parser.add_argument('icon', type=str, location='json')
         parser.add_argument('icon_background', type=str, location='json')
         parser.add_argument('model_config', type=dict, location='json')
@@ -90,18 +90,7 @@ class AppListApi(Resource):
         if not current_user.is_admin_or_owner:
             raise Forbidden()
 
-        try:
-            provider_manager = ProviderManager()
-            default_model_entity = provider_manager.get_default_model(
-                tenant_id=current_user.current_tenant_id,
-                model_type=ModelType.LLM
-            )
-        except (ProviderTokenNotInitError, LLMBadRequestError):
-            default_model_entity = None
-        except Exception as e:
-            logging.exception(e)
-            default_model_entity = None
-
+        # TODO: MOVE TO IMPORT API
         if args['model_config'] is not None:
             # validate config
             model_config_dict = args['model_config']
@@ -150,27 +139,30 @@ class AppListApi(Resource):
             if 'mode' not in args or args['mode'] is None:
                 abort(400, message="mode is required")
 
-            model_config_template = model_templates[args['mode'] + '_default']
+            app_mode = AppMode.value_of(args['mode'])
+
+            model_config_template = model_templates[app_mode.value + '_default']
 
             app = App(**model_config_template['app'])
             app_model_config = AppModelConfig(**model_config_template['model_config'])
 
-            # get model provider
-            model_manager = ModelManager()
-
-            try:
-                model_instance = model_manager.get_default_model_instance(
-                    tenant_id=current_user.current_tenant_id,
-                    model_type=ModelType.LLM
-                )
-            except ProviderTokenNotInitError:
-                model_instance = None
-
-            if model_instance:
-                model_dict = app_model_config.model_dict
-                model_dict['provider'] = model_instance.provider
-                model_dict['name'] = model_instance.model
-                app_model_config.model = json.dumps(model_dict)
+            if app_mode in [AppMode.CHAT, AppMode.AGENT]:
+                # get model provider
+                model_manager = ModelManager()
+
+                try:
+                    model_instance = model_manager.get_default_model_instance(
+                        tenant_id=current_user.current_tenant_id,
+                        model_type=ModelType.LLM
+                    )
+                except ProviderTokenNotInitError:
+                    model_instance = None
+
+                if model_instance:
+                    model_dict = app_model_config.model_dict
+                    model_dict['provider'] = model_instance.provider
+                    model_dict['name'] = model_instance.model
+                    app_model_config.model = json.dumps(model_dict)
 
         app.name = args['name']
         app.mode = args['mode']

api/controllers/console/app/audio.py

@@ -20,10 +20,10 @@ from controllers.console.app.error import (
 from controllers.console.app.wraps import get_app_model
 from controllers.console.setup import setup_required
 from controllers.console.wraps import account_initialization_required
-from core.entities.application_entities import AppMode
 from core.errors.error import ModelCurrentlyNotSupportError, ProviderTokenNotInitError, QuotaExceededError
 from core.model_runtime.errors.invoke import InvokeError
 from libs.login import login_required
+from models.model import AppMode
 from services.audio_service import AudioService
 from services.errors.audio import (
     AudioTooLargeServiceError,

api/controllers/console/app/completion.py

@@ -22,11 +22,12 @@ from controllers.console.app.wraps import get_app_model
 from controllers.console.setup import setup_required
 from controllers.console.wraps import account_initialization_required
 from core.application_queue_manager import ApplicationQueueManager
-from core.entities.application_entities import AppMode, InvokeFrom
+from core.entities.application_entities import InvokeFrom
 from core.errors.error import ModelCurrentlyNotSupportError, ProviderTokenNotInitError, QuotaExceededError
 from core.model_runtime.errors.invoke import InvokeError
 from libs.helper import uuid_value
 from libs.login import login_required
+from models.model import AppMode
 from services.completion_service import CompletionService
 
 

api/controllers/console/app/conversation.py

@@ -12,7 +12,6 @@ from controllers.console import api
 from controllers.console.app.wraps import get_app_model
 from controllers.console.setup import setup_required
 from controllers.console.wraps import account_initialization_required
-from core.entities.application_entities import AppMode
 from extensions.ext_database import db
 from fields.conversation_fields import (
     conversation_detail_fields,
@@ -22,7 +21,7 @@ from fields.conversation_fields import (
 )
 from libs.helper import datetime_string
 from libs.login import login_required
-from models.model import Conversation, Message, MessageAnnotation
+from models.model import Conversation, Message, MessageAnnotation, AppMode
 
 
 class CompletionConversationApi(Resource):

api/controllers/console/app/error.py

@@ -85,3 +85,9 @@ class TooManyFilesError(BaseHTTPException):
     error_code = 'too_many_files'
     description = "Only one file is allowed."
     code = 400
+
+
+class DraftWorkflowNotExist(BaseHTTPException):
+    error_code = 'draft_workflow_not_exist'
+    description = "Draft workflow need to be initialized."
+    code = 400

api/controllers/console/app/message.py

@@ -11,7 +11,6 @@ from werkzeug.exceptions import Forbidden, InternalServerError, NotFound
 
 from controllers.console import api
 from controllers.console.app.error import (
-    AppMoreLikeThisDisabledError,
     CompletionRequestError,
     ProviderModelCurrentlyNotSupportError,
     ProviderNotInitializeError,
@@ -20,7 +19,6 @@ from controllers.console.app.error import (
 from controllers.console.app.wraps import get_app_model
 from controllers.console.setup import setup_required
 from controllers.console.wraps import account_initialization_required, cloud_edition_billing_resource_check
-from core.entities.application_entities import AppMode, InvokeFrom
 from core.errors.error import ModelCurrentlyNotSupportError, ProviderTokenNotInitError, QuotaExceededError
 from core.model_runtime.errors.invoke import InvokeError
 from extensions.ext_database import db
@@ -28,10 +26,8 @@ from fields.conversation_fields import annotation_fields, message_detail_fields
 from libs.helper import uuid_value
 from libs.infinite_scroll_pagination import InfiniteScrollPagination
 from libs.login import login_required
-from models.model import Conversation, Message, MessageAnnotation, MessageFeedback
+from models.model import Conversation, Message, MessageAnnotation, MessageFeedback, AppMode
 from services.annotation_service import AppAnnotationService
-from services.completion_service import CompletionService
-from services.errors.app import MoreLikeThisDisabledError
 from services.errors.conversation import ConversationNotExistsError
 from services.errors.message import MessageNotExistsError
 from services.message_service import MessageService
@@ -183,49 +179,6 @@ class MessageAnnotationCountApi(Resource):
         return {'count': count}
 
 
-class MessageMoreLikeThisApi(Resource):
-    @setup_required
-    @login_required
-    @account_initialization_required
-    @get_app_model(mode=AppMode.COMPLETION)
-    def get(self, app_model, message_id):
-        message_id = str(message_id)
-
-        parser = reqparse.RequestParser()
-        parser.add_argument('response_mode', type=str, required=True, choices=['blocking', 'streaming'],
-                            location='args')
-        args = parser.parse_args()
-
-        streaming = args['response_mode'] == 'streaming'
-
-        try:
-            response = CompletionService.generate_more_like_this(
-                app_model=app_model,
-                user=current_user,
-                message_id=message_id,
-                invoke_from=InvokeFrom.DEBUGGER,
-                streaming=streaming
-            )
-            return compact_response(response)
-        except MessageNotExistsError:
-            raise NotFound("Message Not Exists.")
-        except MoreLikeThisDisabledError:
-            raise AppMoreLikeThisDisabledError()
-        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 ValueError as e:
-            raise e
-        except Exception as e:
-            logging.exception("internal server error.")
-            raise InternalServerError()
-
-
 def compact_response(response: Union[dict, Generator]) -> Response:
     if isinstance(response, dict):
         return Response(response=json.dumps(response), status=200, mimetype='application/json')
@@ -291,7 +244,6 @@ class MessageApi(Resource):
         return message
 
 
-api.add_resource(MessageMoreLikeThisApi, '/apps/<uuid:app_id>/completion-messages/<uuid:message_id>/more-like-this')
 api.add_resource(MessageSuggestedQuestionApi, '/apps/<uuid:app_id>/chat-messages/<uuid:message_id>/suggested-questions')
 api.add_resource(ChatMessageListApi, '/apps/<uuid:app_id>/chat-messages', endpoint='console_chat_messages')
 api.add_resource(MessageFeedbackApi, '/apps/<uuid:app_id>/feedbacks')

api/controllers/console/app/statistic.py

@@ -10,10 +10,10 @@ from controllers.console import api
 from controllers.console.app.wraps import get_app_model
 from controllers.console.setup import setup_required
 from controllers.console.wraps import account_initialization_required
-from core.entities.application_entities import AppMode
 from extensions.ext_database import db
 from libs.helper import datetime_string
 from libs.login import login_required
+from models.model import AppMode
 
 
 class DailyConversationStatistic(Resource):

api/controllers/console/app/workflow.py

-from flask_restful import Resource, reqparse
+from flask_restful import Resource, reqparse, marshal_with
 
 from controllers.console import api
+from controllers.console.app.error import DraftWorkflowNotExist
+from controllers.console.app.wraps import get_app_model
 from controllers.console.setup import setup_required
 from controllers.console.wraps import account_initialization_required
-from core.entities.application_entities import AppMode
-from libs.login import login_required
+from fields.workflow_fields import workflow_fields
+from libs.login import login_required, current_user
+from models.model import App, ChatbotAppEngine, AppMode
+from services.workflow_service import WorkflowService
 
 
-class DefaultBlockConfigApi(Resource):
+class DraftWorkflowApi(Resource):
+    @setup_required
+    @login_required
+    @account_initialization_required
+    @get_app_model(mode=[AppMode.CHAT, AppMode.WORKFLOW], app_engine=ChatbotAppEngine.WORKFLOW)
+    @marshal_with(workflow_fields)
+    def get(self, app_model: App):
+        """
+        Get draft workflow
+        """
+        # fetch draft workflow by app_model
+        workflow_service = WorkflowService()
+        workflow = workflow_service.get_draft_workflow(app_model=app_model)
+
+        if not workflow:
+            raise DraftWorkflowNotExist()
+
+        # return workflow, if not found, return None (initiate graph by frontend)
+        return workflow
+
     @setup_required
     @login_required
     @account_initialization_required
-    def get(self):
+    @get_app_model(mode=[AppMode.CHAT, AppMode.WORKFLOW], app_engine=ChatbotAppEngine.WORKFLOW)
+    def post(self, app_model: App):
+        """
+        Sync draft workflow
+        """
         parser = reqparse.RequestParser()
-        parser.add_argument('app_mode', type=str, required=True, nullable=False,
-                            choices=[AppMode.CHAT.value, AppMode.WORKFLOW.value], location='args')
+        parser.add_argument('graph', type=dict, required=True, nullable=False, location='json')
         args = parser.parse_args()
 
-        app_mode = args.get('app_mode')
-        app_mode = AppMode.value_of(app_mode)
-
-        # TODO: implement this
+        workflow_service = WorkflowService()
+        workflow_service.sync_draft_workflow(app_model=app_model, graph=args.get('graph'), account=current_user)
 
         return {
-            "blocks": []
+            "result": "success"
         }
 
 
-api.add_resource(DefaultBlockConfigApi, '/default-workflow-block-configs')
+class DefaultBlockConfigApi(Resource):
+    @setup_required
+    @login_required
+    @account_initialization_required
+    @get_app_model(mode=[AppMode.CHAT, AppMode.WORKFLOW], app_engine=ChatbotAppEngine.WORKFLOW)
+    def get(self, app_model: App):
+        """
+        Get default block config
+        """
+        # Get default block configs
+        workflow_service = WorkflowService()
+        return workflow_service.get_default_block_configs()
+
+
+class ConvertToWorkflowApi(Resource):
+    @setup_required
+    @login_required
+    @account_initialization_required
+    @get_app_model(mode=AppMode.CHAT)
+    @marshal_with(workflow_fields)
+    def post(self, app_model: App):
+        """
+        Convert basic mode of chatbot app to workflow
+        """
+        # convert to workflow mode
+        workflow_service = WorkflowService()
+        workflow = workflow_service.chatbot_convert_to_workflow(app_model=app_model)
+
+        # return workflow
+        return workflow
+
+
+api.add_resource(DraftWorkflowApi, '/apps/<uuid:app_id>/workflows/draft')
+api.add_resource(DefaultBlockConfigApi, '/apps/<uuid:app_id>/workflows/default-workflow-block-configs')
+api.add_resource(ConvertToWorkflowApi, '/apps/<uuid:app_id>/convert-to-workflow')

api/controllers/console/app/wraps.py

@@ -3,13 +3,14 @@ from functools import wraps
 from typing import Optional, Union
 
 from controllers.console.app.error import AppNotFoundError
-from core.entities.application_entities import AppMode
 from extensions.ext_database import db
 from libs.login import current_user
-from models.model import App
+from models.model import App, ChatbotAppEngine, AppMode
 
 
-def get_app_model(view: Optional[Callable] = None, *, mode: Union[AppMode, list[AppMode]] = None):
+def get_app_model(view: Optional[Callable] = None, *,
+                  mode: Union[AppMode, list[AppMode]] = None,
+                  app_engine: ChatbotAppEngine = None):
     def decorator(view_func):
         @wraps(view_func)
         def decorated_view(*args, **kwargs):
@@ -37,14 +38,20 @@ def get_app_model(view: Optional[Callable] = None, *, mode: Union[AppMode, list[
                 else:
                     modes = [mode]
 
-                # [temp] if workflow is in the mode list, then completion should be in the mode list
-                if AppMode.WORKFLOW in modes:
-                    modes.append(AppMode.COMPLETION)
-
                 if app_mode not in modes:
                     mode_values = {m.value for m in modes}
                     raise AppNotFoundError(f"App mode is not in the supported list: {mode_values}")
 
+            if app_engine is not None:
+                if app_mode not in [AppMode.CHAT, AppMode.WORKFLOW]:
+                    raise AppNotFoundError(f"App mode is not supported for {app_engine.value} app engine.")
+
+                if app_mode == AppMode.CHAT:
+                    # fetch current app model config
+                    app_model_config = app_model.app_model_config
+                    if not app_model_config or app_model_config.chatbot_app_engine != app_engine.value:
+                        raise AppNotFoundError(f"{app_engine.value} app engine is not supported.")
+
             kwargs['app_model'] = app_model
 
             return view_func(*args, **kwargs)

api/controllers/console/explore/message.py

@@ -12,7 +12,6 @@ from werkzeug.exceptions import InternalServerError, NotFound
 import services
 from controllers.console import api
 from controllers.console.app.error import (
-    AppMoreLikeThisDisabledError,
     CompletionRequestError,
     ProviderModelCurrentlyNotSupportError,
     ProviderNotInitializeError,
@@ -24,13 +23,10 @@ from controllers.console.explore.error import (
     NotCompletionAppError,
 )
 from controllers.console.explore.wraps import InstalledAppResource
-from core.entities.application_entities import InvokeFrom
 from core.errors.error import ModelCurrentlyNotSupportError, ProviderTokenNotInitError, QuotaExceededError
 from core.model_runtime.errors.invoke import InvokeError
 from fields.message_fields import message_infinite_scroll_pagination_fields
 from libs.helper import uuid_value
-from services.completion_service import CompletionService
-from services.errors.app import MoreLikeThisDisabledError
 from services.errors.conversation import ConversationNotExistsError
 from services.errors.message import MessageNotExistsError, SuggestedQuestionsAfterAnswerDisabledError
 from services.message_service import MessageService
@@ -76,48 +72,6 @@ class MessageFeedbackApi(InstalledAppResource):
         return {'result': 'success'}
 
 
-class MessageMoreLikeThisApi(InstalledAppResource):
-    def get(self, installed_app, message_id):
-        app_model = installed_app.app
-        if app_model.mode != 'completion':
-            raise NotCompletionAppError()
-
-        message_id = str(message_id)
-
-        parser = reqparse.RequestParser()
-        parser.add_argument('response_mode', type=str, required=True, choices=['blocking', 'streaming'], location='args')
-        args = parser.parse_args()
-
-        streaming = args['response_mode'] == 'streaming'
-
-        try:
-            response = CompletionService.generate_more_like_this(
-                app_model=app_model,
-                user=current_user,
-                message_id=message_id,
-                invoke_from=InvokeFrom.EXPLORE,
-                streaming=streaming
-            )
-            return compact_response(response)
-        except MessageNotExistsError:
-            raise NotFound("Message Not Exists.")
-        except MoreLikeThisDisabledError:
-            raise AppMoreLikeThisDisabledError()
-        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 ValueError as e:
-            raise e
-        except Exception:
-            logging.exception("internal server error.")
-            raise InternalServerError()
-
-
 def compact_response(response: Union[dict, Generator]) -> Response:
     if isinstance(response, dict):
         return Response(response=json.dumps(response), status=200, mimetype='application/json')
@@ -166,5 +120,4 @@ class MessageSuggestedQuestionApi(InstalledAppResource):
 
 api.add_resource(MessageListApi, '/installed-apps/<uuid:installed_app_id>/messages', endpoint='installed_app_messages')
 api.add_resource(MessageFeedbackApi, '/installed-apps/<uuid:installed_app_id>/messages/<uuid:message_id>/feedbacks', endpoint='installed_app_message_feedback')
-api.add_resource(MessageMoreLikeThisApi, '/installed-apps/<uuid:installed_app_id>/messages/<uuid:message_id>/more-like-this', endpoint='installed_app_more_like_this')
 api.add_resource(MessageSuggestedQuestionApi, '/installed-apps/<uuid:installed_app_id>/messages/<uuid:message_id>/suggested-questions', endpoint='installed_app_suggested_question')

api/controllers/console/ping.py

+from flask_restful import Resource
+
+from controllers.console import api
+
+
+class PingApi(Resource):
+
+    def get(self):
+        """
+        For connection health check
+        """
+        return {
+            "result": "pong"
+        }
+
+
+api.add_resource(PingApi, '/ping')

api/controllers/console/workspace/account.py

@@ -16,26 +16,13 @@ from controllers.console.workspace.error import (
 )
 from controllers.console.wraps import account_initialization_required
 from extensions.ext_database import db
+from fields.member_fields import account_fields
 from libs.helper import TimestampField, timezone
 from libs.login import login_required
 from models.account import AccountIntegrate, InvitationCode
 from services.account_service import AccountService
 from services.errors.account import CurrentPasswordIncorrectError as ServiceCurrentPasswordIncorrectError
 
-account_fields = {
-    'id': fields.String,
-    'name': fields.String,
-    'avatar': fields.String,
-    'email': fields.String,
-    'is_password_set': fields.Boolean,
-    'interface_language': fields.String,
-    'interface_theme': fields.String,
-    'timezone': fields.String,
-    'last_login_at': TimestampField,
-    'last_login_ip': fields.String,
-    'created_at': TimestampField
-}
-
 
 class AccountInitApi(Resource):
 

api/controllers/console/workspace/members.py

 from flask import current_app
 from flask_login import current_user
-from flask_restful import Resource, abort, fields, marshal_with, reqparse
+from flask_restful import Resource, abort, marshal_with, reqparse
 
 import services
 from controllers.console import api
 from controllers.console.setup import setup_required
 from controllers.console.wraps import account_initialization_required, cloud_edition_billing_resource_check
 from extensions.ext_database import db
-from libs.helper import TimestampField
+from fields.member_fields import account_with_role_list_fields
 from libs.login import login_required
 from models.account import Account
 from services.account_service import RegisterService, TenantService
 from services.errors.account import AccountAlreadyInTenantError
 
-account_fields = {
-    'id': fields.String,
-    'name': fields.String,
-    'avatar': fields.String,
-    'email': fields.String,
-    'last_login_at': TimestampField,
-    'created_at': TimestampField,
-    'role': fields.String,
-    'status': fields.String,
-}
-
-account_list_fields = {
-    'accounts': fields.List(fields.Nested(account_fields))
-}
-
 
 class MemberListApi(Resource):
     """List all members of current tenant."""
@@ -35,7 +20,7 @@ class MemberListApi(Resource):
     @setup_required
     @login_required
     @account_initialization_required
-    @marshal_with(account_list_fields)
+    @marshal_with(account_with_role_list_fields)
     def get(self):
         members = TenantService.get_tenant_members(current_user.current_tenant)
         return {'result': 'success', 'accounts': members}, 200

api/controllers/web/message.py

@@ -11,7 +11,6 @@ from werkzeug.exceptions import InternalServerError, NotFound
 import services
 from controllers.web import api
 from controllers.web.error import (
-    AppMoreLikeThisDisabledError,
     AppSuggestedQuestionsAfterAnswerDisabledError,
     CompletionRequestError,
     NotChatAppError,
@@ -21,14 +20,11 @@ from controllers.web.error import (
     ProviderQuotaExceededError,
 )
 from controllers.web.wraps import WebApiResource
-from core.entities.application_entities import InvokeFrom
 from core.errors.error import ModelCurrentlyNotSupportError, ProviderTokenNotInitError, QuotaExceededError
 from core.model_runtime.errors.invoke import InvokeError
 from fields.conversation_fields import message_file_fields
 from fields.message_fields import agent_thought_fields
 from libs.helper import TimestampField, uuid_value
-from services.completion_service import CompletionService
-from services.errors.app import MoreLikeThisDisabledError
 from services.errors.conversation import ConversationNotExistsError
 from services.errors.message import MessageNotExistsError, SuggestedQuestionsAfterAnswerDisabledError
 from services.message_service import MessageService
@@ -113,48 +109,6 @@ class MessageFeedbackApi(WebApiResource):
         return {'result': 'success'}
 
 
-class MessageMoreLikeThisApi(WebApiResource):
-    def get(self, app_model, end_user, message_id):
-        if app_model.mode != 'completion':
-            raise NotCompletionAppError()
-
-        message_id = str(message_id)
-
-        parser = reqparse.RequestParser()
-        parser.add_argument('response_mode', type=str, required=True, choices=['blocking', 'streaming'], location='args')
-        args = parser.parse_args()
-
-        streaming = args['response_mode'] == 'streaming'
-
-        try:
-            response = CompletionService.generate_more_like_this(
-                app_model=app_model,
-                user=end_user,
-                message_id=message_id,
-                invoke_from=InvokeFrom.WEB_APP,
-                streaming=streaming
-            )
-
-            return compact_response(response)
-        except MessageNotExistsError:
-            raise NotFound("Message Not Exists.")
-        except MoreLikeThisDisabledError:
-            raise AppMoreLikeThisDisabledError()
-        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 ValueError as e:
-            raise e
-        except Exception:
-            logging.exception("internal server error.")
-            raise InternalServerError()
-
-
 def compact_response(response: Union[dict, Generator]) -> Response:
     if isinstance(response, dict):
         return Response(response=json.dumps(response), status=200, mimetype='application/json')
@@ -202,5 +156,4 @@ class MessageSuggestedQuestionApi(WebApiResource):
 
 api.add_resource(MessageListApi, '/messages')
 api.add_resource(MessageFeedbackApi, '/messages/<uuid:message_id>/feedbacks')
-api.add_resource(MessageMoreLikeThisApi, '/messages/<uuid:message_id>/more-like-this')
 api.add_resource(MessageSuggestedQuestionApi, '/messages/<uuid:message_id>/suggested-questions')

api/core/app_runner/basic_app_runner.py

@@ -6,7 +6,6 @@ from core.application_queue_manager import ApplicationQueueManager, PublishFrom
 from core.callback_handler.index_tool_callback_handler import DatasetIndexToolCallbackHandler
 from core.entities.application_entities import (
     ApplicationGenerateEntity,
-    AppMode,
     DatasetEntity,
     InvokeFrom,
     ModelConfigEntity,
@@ -16,7 +15,7 @@ from core.memory.token_buffer_memory import TokenBufferMemory
 from core.model_manager import ModelInstance
 from core.moderation.base import ModerationException
 from extensions.ext_database import db
-from models.model import App, Conversation, Message
+from models.model import App, Conversation, Message, AppMode
 
 logger = logging.getLogger(__name__)
 
@@ -250,6 +249,7 @@ class BasicApplicationRunner(AppRunner):
             invoke_from
         )
 
+        # TODO
         if (app_record.mode == AppMode.COMPLETION.value and dataset_config
                 and dataset_config.retrieve_config.query_variable):
             query = inputs.get(dataset_config.retrieve_config.query_variable, "")

api/core/application_manager.py

@@ -28,7 +28,7 @@ from core.entities.application_entities import (
     ModelConfigEntity,
     PromptTemplateEntity,
     SensitiveWordAvoidanceEntity,
-    TextToSpeechEntity,
+    TextToSpeechEntity, VariableEntity,
 )
 from core.entities.model_entities import ModelStatus
 from core.errors.error import ModelCurrentlyNotSupportError, ProviderTokenNotInitError, QuotaExceededError
@@ -93,7 +93,7 @@ class ApplicationManager:
             app_id=app_id,
             app_model_config_id=app_model_config_id,
             app_model_config_dict=app_model_config_dict,
-            app_orchestration_config_entity=self._convert_from_app_model_config_dict(
+            app_orchestration_config_entity=self.convert_from_app_model_config_dict(
                 tenant_id=tenant_id,
                 app_model_config_dict=app_model_config_dict
             ),
@@ -234,7 +234,7 @@ class ApplicationManager:
                 logger.exception(e)
                 raise e
 
-    def _convert_from_app_model_config_dict(self, tenant_id: str, app_model_config_dict: dict) \
+    def convert_from_app_model_config_dict(self, tenant_id: str, app_model_config_dict: dict) \
             -> AppOrchestrationConfigEntity:
         """
         Convert app model config dict to entity.
@@ -384,8 +384,10 @@ class ApplicationManager:
                     config=external_data_tool['config']
                 )
             )
+
+        properties['variables'] = []
         
-        # current external_data_tools
+        # variables and external_data_tools
         for variable in copy_app_model_config_dict.get('user_input_form', []):
             typ = list(variable.keys())[0]
             if typ == 'external_data_tool':
@@ -397,6 +399,30 @@ class ApplicationManager:
                         config=val['config']
                     )
                 )
+            elif typ in [VariableEntity.Type.TEXT_INPUT.value, VariableEntity.Type.PARAGRAPH.value]:
+                properties['variables'].append(
+                    VariableEntity(
+                        type=VariableEntity.Type.TEXT_INPUT,
+                        variable=variable[typ].get('variable'),
+                        description=variable[typ].get('description'),
+                        label=variable[typ].get('label'),
+                        required=variable[typ].get('required', False),
+                        max_length=variable[typ].get('max_length'),
+                        default=variable[typ].get('default'),
+                    )
+                )
+            elif typ == VariableEntity.Type.SELECT.value:
+                properties['variables'].append(
+                    VariableEntity(
+                        type=VariableEntity.Type.SELECT,
+                        variable=variable[typ].get('variable'),
+                        description=variable[typ].get('description'),
+                        label=variable[typ].get('label'),
+                        required=variable[typ].get('required', False),
+                        options=variable[typ].get('options'),
+                        default=variable[typ].get('default'),
+                    )
+                )
 
         # show retrieve source
         show_retrieve_source = False

api/core/entities/application_entities.py

@@ -9,26 +9,6 @@ from core.model_runtime.entities.message_entities import PromptMessageRole
 from core.model_runtime.entities.model_entities import AIModelEntity
 
 
-class AppMode(Enum):
-    COMPLETION = 'completion'  # will be deprecated in the future
-    WORKFLOW = 'workflow'  # instead of 'completion'
-    CHAT = 'chat'
-    AGENT = 'agent'
-
-    @classmethod
-    def value_of(cls, value: str) -> 'AppMode':
-        """
-        Get value of given mode.
-
-        :param value: mode value
-        :return: mode
-        """
-        for mode in cls:
-            if mode.value == value:
-                return mode
-        raise ValueError(f'invalid mode value {value}')
-
-
 class ModelConfigEntity(BaseModel):
     """
     Model Config Entity.
@@ -106,6 +86,38 @@ class PromptTemplateEntity(BaseModel):
     advanced_completion_prompt_template: Optional[AdvancedCompletionPromptTemplateEntity] = None
 
 
+class VariableEntity(BaseModel):
+    """
+    Variable Entity.
+    """
+    class Type(Enum):
+        TEXT_INPUT = 'text-input'
+        SELECT = 'select'
+        PARAGRAPH = 'paragraph'
+
+        @classmethod
+        def value_of(cls, value: str) -> 'VariableEntity.Type':
+            """
+            Get value of given mode.
+
+            :param value: mode value
+            :return: mode
+            """
+            for mode in cls:
+                if mode.value == value:
+                    return mode
+            raise ValueError(f'invalid variable type value {value}')
+
+    variable: str
+    label: str
+    description: Optional[str] = None
+    type: Type
+    required: bool = False
+    max_length: Optional[int] = None
+    options: Optional[list[str]] = None
+    default: Optional[str] = None
+
+
 class ExternalDataVariableEntity(BaseModel):
     """
     External Data Variable Entity.
@@ -245,6 +257,7 @@ class AppOrchestrationConfigEntity(BaseModel):
     """
     model_config: ModelConfigEntity
     prompt_template: PromptTemplateEntity
+    variables: list[VariableEntity] = []
     external_data_variables: list[ExternalDataVariableEntity] = []
     agent: Optional[AgentEntity] = None
 
@@ -256,7 +269,7 @@ class AppOrchestrationConfigEntity(BaseModel):
     show_retrieve_source: bool = False
     more_like_this: bool = False
     speech_to_text: bool = False
-    text_to_speech: dict = {}
+    text_to_speech: Optional[TextToSpeechEntity] = None
     sensitive_word_avoidance: Optional[SensitiveWordAvoidanceEntity] = None
 
 

api/core/prompt/prompt_transform.py

@@ -6,7 +6,6 @@ from typing import Optional, cast
 
 from core.entities.application_entities import (
     AdvancedCompletionPromptTemplateEntity,
-    AppMode,
     ModelConfigEntity,
     PromptTemplateEntity,
 )
@@ -24,6 +23,7 @@ from core.model_runtime.entities.model_entities import ModelPropertyKey
 from core.model_runtime.model_providers.__base.large_language_model import LargeLanguageModel
 from core.prompt.prompt_builder import PromptBuilder
 from core.prompt.prompt_template import PromptTemplateParser
+from models.model import AppMode
 
 
 class ModelMode(enum.Enum):

api/core/workflow/entities/NodeEntities.py

+from enum import Enum
+
+
+class NodeType(Enum):
+    """
+    Node Types.
+    """
+    START = 'start'
+    END = 'end'
+    DIRECT_ANSWER = 'direct-answer'
+    LLM = 'llm'
+    KNOWLEDGE_RETRIEVAL = 'knowledge-retrieval'
+    IF_ELSE = 'if-else'
+    CODE = 'code'
+    TEMPLATE_TRANSFORM = 'template-transform'
+    QUESTION_CLASSIFIER = 'question-classifier'
+    HTTP_REQUEST = 'http-request'
+    TOOL = 'tool'
+    VARIABLE_ASSIGNER = 'variable-assigner'
+
+    @classmethod
+    def value_of(cls, value: str) -> 'BlockType':
+        """
+        Get value of given block type.
+
+        :param value: block type value
+        :return: block type
+        """
+        for block_type in cls:
+            if block_type.value == value:
+                return block_type
+        raise ValueError(f'invalid block type value {value}')

api/core/workflow/nodes/end/entities.py

+from enum import Enum
+
+
+class EndNodeOutputType(Enum):
+    """
+    END Node Output Types.
+
+    none, plain-text, structured
+    """
+    NONE = 'none'
+    PLAIN_TEXT = 'plain-text'
+    STRUCTURED = 'structured'
+
+    @classmethod
+    def value_of(cls, value: str) -> 'OutputType':
+        """
+        Get value of given output type.
+
+        :param value: output type value
+        :return: output type
+        """
+        for output_type in cls:
+            if output_type.value == value:
+                return output_type
+        raise ValueError(f'invalid output type value {value}')

api/fields/annotation_fields.py

@@ -2,12 +2,6 @@ from flask_restful import fields
 
 from libs.helper import TimestampField
 
-account_fields = {
-    'id': fields.String,
-    'name': fields.String,
-    'email': fields.String
-}
-
 
 annotation_fields = {
     "id": fields.String,
@@ -15,7 +9,7 @@ annotation_fields = {
     "answer": fields.Raw(attribute='content'),
     "hit_count": fields.Integer,
     "created_at": TimestampField,
-    # 'account': fields.Nested(account_fields, allow_null=True)
+    # 'account': fields.Nested(simple_account_fields, allow_null=True)
 }
 
 annotation_list_fields = {

api/fields/conversation_fields.py

 from flask_restful import fields
 
+from fields.member_fields import simple_account_fields
 from libs.helper import TimestampField
 
 
@@ -8,31 +9,25 @@ class MessageTextField(fields.Raw):
         return value[0]['text'] if value else ''
 
 
-account_fields = {
-    'id': fields.String,
-    'name': fields.String,
-    'email': fields.String
-}
-
 feedback_fields = {
     'rating': fields.String,
     'content': fields.String,
     'from_source': fields.String,
     'from_end_user_id': fields.String,
-    'from_account': fields.Nested(account_fields, allow_null=True),
+    'from_account': fields.Nested(simple_account_fields, allow_null=True),
 }
 
 annotation_fields = {
     'id': fields.String,
     'question': fields.String,
     'content': fields.String,
-    'account': fields.Nested(account_fields, allow_null=True),
+    'account': fields.Nested(simple_account_fields, allow_null=True),
     'created_at': TimestampField
 }
 
 annotation_hit_history_fields = {
     'annotation_id': fields.String(attribute='id'),
-    'annotation_create_account': fields.Nested(account_fields, allow_null=True),
+    'annotation_create_account': fields.Nested(simple_account_fields, allow_null=True),
     'created_at': TimestampField
 }
 

api/fields/member_fields.py

+from flask_restful import fields
+
+from libs.helper import TimestampField
+
+simple_account_fields = {
+    'id': fields.String,
+    'name': fields.String,
+    'email': fields.String
+}
+
+account_fields = {
+    'id': fields.String,
+    'name': fields.String,
+    'avatar': fields.String,
+    'email': fields.String,
+    'is_password_set': fields.Boolean,
+    'interface_language': fields.String,
+    'interface_theme': fields.String,
+    'timezone': fields.String,
+    'last_login_at': TimestampField,
+    'last_login_ip': fields.String,
+    'created_at': TimestampField
+}
+
+account_with_role_fields = {
+    'id': fields.String,
+    'name': fields.String,
+    'avatar': fields.String,
+    'email': fields.String,
+    'last_login_at': TimestampField,
+    'created_at': TimestampField,
+    'role': fields.String,
+    'status': fields.String,
+}
+
+account_with_role_list_fields = {
+    'accounts': fields.List(fields.Nested(account_with_role_fields))
+}

api/fields/workflow_fields.py

+import json
+
+from flask_restful import fields
+
+from fields.member_fields import simple_account_fields
+from libs.helper import TimestampField
+
+
+workflow_fields = {
+    'id': fields.String,
+    'graph': fields.Raw(attribute=lambda x: json.loads(x.graph) if hasattr(x, 'graph') else None),
+    'created_by': fields.Nested(simple_account_fields, attribute='created_by_account'),
+    'created_at': TimestampField,
+    'updated_by': fields.Nested(simple_account_fields, attribute='updated_by_account', allow_null=True),
+    'updated_at': TimestampField
+}

api/migrations/versions/b289e2408ee2_add_workflow.py

@@ -102,7 +102,7 @@ def upgrade():
     sa.PrimaryKeyConstraint('id', name='workflow_pkey')
     )
     with op.batch_alter_table('workflows', schema=None) as batch_op:
-        batch_op.create_index('workflow_version_idx', ['tenant_id', 'app_id', 'type', 'version'], unique=False)
+        batch_op.create_index('workflow_version_idx', ['tenant_id', 'app_id', 'version'], unique=False)
 
     with op.batch_alter_table('app_model_configs', schema=None) as batch_op:
         batch_op.add_column(sa.Column('chatbot_app_engine', sa.String(length=255), server_default=sa.text("'normal'::character varying"), nullable=False))

api/models/model.py

 import json
 import uuid
+from enum import Enum
+from typing import Optional
 
 from flask import current_app, request
 from flask_login import UserMixin
@@ -25,6 +27,25 @@ class DifySetup(db.Model):
     setup_at = db.Column(db.DateTime, nullable=False, server_default=db.text('CURRENT_TIMESTAMP(0)'))
 
 
+class AppMode(Enum):
+    WORKFLOW = 'workflow'
+    CHAT = 'chat'
+    AGENT = 'agent'
+
+    @classmethod
+    def value_of(cls, value: str) -> 'AppMode':
+        """
+        Get value of given mode.
+
+        :param value: mode value
+        :return: mode
+        """
+        for mode in cls:
+            if mode.value == value:
+                return mode
+        raise ValueError(f'invalid mode value {value}')
+
+
 class App(db.Model):
     __tablename__ = 'apps'
     __table_args__ = (
@@ -56,7 +77,7 @@ class App(db.Model):
         return site
 
     @property
-    def app_model_config(self):
+    def app_model_config(self) -> Optional['AppModelConfig']:
         app_model_config = db.session.query(AppModelConfig).filter(
             AppModelConfig.id == self.app_model_config_id).first()
         return app_model_config
@@ -130,6 +151,12 @@ class App(db.Model):
 
         return deleted_tools
 
+
+class ChatbotAppEngine(Enum):
+    NORMAL = 'normal'
+    WORKFLOW = 'workflow'
+
+
 class AppModelConfig(db.Model):
     __tablename__ = 'app_model_configs'
     __table_args__ = (

api/models/workflow.py

+from enum import Enum
+from typing import Union
+
 from sqlalchemy.dialects.postgresql import UUID
 
 from extensions.ext_database import db
+from models.account import Account
+from models.model import AppMode
+
+
+class WorkflowType(Enum):
+    """
+    Workflow Type Enum
+    """
+    WORKFLOW = 'workflow'
+    CHAT = 'chat'
+
+    @classmethod
+    def value_of(cls, value: str) -> 'WorkflowType':
+        """
+        Get value of given mode.
+
+        :param value: mode value
+        :return: mode
+        """
+        for mode in cls:
+            if mode.value == value:
+                return mode
+        raise ValueError(f'invalid workflow type value {value}')
+
+    @classmethod
+    def from_app_mode(cls, app_mode: Union[str, AppMode]) -> 'WorkflowType':
+        """
+        Get workflow type from app mode.
+
+        :param app_mode: app mode
+        :return: workflow type
+        """
+        app_mode = app_mode if isinstance(app_mode, AppMode) else AppMode.value_of(app_mode)
+        return cls.WORKFLOW if app_mode == AppMode.WORKFLOW else cls.CHAT
 
 
 class Workflow(db.Model):
@@ -39,7 +76,7 @@ class Workflow(db.Model):
     __tablename__ = 'workflows'
     __table_args__ = (
         db.PrimaryKeyConstraint('id', name='workflow_pkey'),
-        db.Index('workflow_version_idx', 'tenant_id', 'app_id', 'type', 'version'),
+        db.Index('workflow_version_idx', 'tenant_id', 'app_id', 'version'),
     )
 
     id = db.Column(UUID, server_default=db.text('uuid_generate_v4()'))
@@ -53,6 +90,14 @@ class Workflow(db.Model):
     updated_by = db.Column(UUID)
     updated_at = db.Column(db.DateTime)
 
+    @property
+    def created_by_account(self):
+        return Account.query.get(self.created_by)
+
+    @property
+    def updated_by_account(self):
+        return Account.query.get(self.updated_by)
+
 
 class WorkflowRun(db.Model):
     """
@@ -116,6 +161,14 @@ class WorkflowRun(db.Model):
     created_at = db.Column(db.DateTime, nullable=False, server_default=db.text('CURRENT_TIMESTAMP(0)'))
     finished_at = db.Column(db.DateTime)
 
+    @property
+    def created_by_account(self):
+        return Account.query.get(self.created_by)
+
+    @property
+    def updated_by_account(self):
+        return Account.query.get(self.updated_by)
+
 
 class WorkflowNodeExecution(db.Model):
     """

api/services/advanced_prompt_template_service.py

 
 import copy
 
-from core.entities.application_entities import AppMode
 from core.prompt.advanced_prompt_templates import (
     BAICHUAN_CHAT_APP_CHAT_PROMPT_CONFIG,
     BAICHUAN_CHAT_APP_COMPLETION_PROMPT_CONFIG,
@@ -14,6 +13,7 @@ from core.prompt.advanced_prompt_templates import (
     COMPLETION_APP_COMPLETION_PROMPT_CONFIG,
     CONTEXT,
 )
+from models.model import AppMode
 
 
 class AdvancedPromptTemplateService:

api/services/app_model_config_service.py

@@ -9,6 +9,7 @@ from core.model_runtime.model_providers import model_provider_factory
 from core.moderation.factory import ModerationFactory
 from core.provider_manager import ProviderManager
 from models.account import Account
+from models.model import AppMode
 from services.dataset_service import DatasetService
 
 SUPPORT_TOOLS = ["dataset", "google_search", "web_reader", "wikipedia", "current_datetime"]
@@ -315,9 +316,6 @@ class AppModelConfigService:
                 if "tool_parameters" not in tool:
                     raise ValueError("tool_parameters is required in agent_mode.tools")
 
-        # dataset_query_variable
-        cls.is_dataset_query_variable_valid(config, app_mode)
-
         # advanced prompt validation
         cls.is_advanced_prompt_valid(config, app_mode)
 
@@ -443,21 +441,6 @@ class AppModelConfigService:
                 config=config
             )
 
-    @classmethod
-    def is_dataset_query_variable_valid(cls, config: dict, mode: str) -> None:
-        # Only check when mode is completion
-        if mode != 'completion':
-            return
-
-        agent_mode = config.get("agent_mode", {})
-        tools = agent_mode.get("tools", [])
-        dataset_exists = "dataset" in str(tools)
-
-        dataset_query_variable = config.get("dataset_query_variable")
-
-        if dataset_exists and not dataset_query_variable:
-            raise ValueError("Dataset query variable is required when dataset is exist")
-
     @classmethod
     def is_advanced_prompt_valid(cls, config: dict, app_mode: str) -> None:
         # prompt_type

api/services/completion_service.py

@@ -8,12 +8,10 @@ from core.application_manager import ApplicationManager
 from core.entities.application_entities import InvokeFrom
 from core.file.message_file_parser import MessageFileParser
 from extensions.ext_database import db
-from models.model import Account, App, AppModelConfig, Conversation, EndUser, Message
+from models.model import Account, App, AppModelConfig, Conversation, EndUser
 from services.app_model_config_service import AppModelConfigService
-from services.errors.app import MoreLikeThisDisabledError
 from services.errors.app_model_config import AppModelConfigBrokenError
 from services.errors.conversation import ConversationCompletedError, ConversationNotExistsError
-from services.errors.message import MessageNotExistsError
 
 
 class CompletionService:
@@ -157,62 +155,6 @@ class CompletionService:
             }
         )
 
-    @classmethod
-    def generate_more_like_this(cls, app_model: App, user: Union[Account, EndUser],
-                                message_id: str, invoke_from: InvokeFrom, streaming: bool = True) \
-            -> Union[dict, Generator]:
-        if not user:
-            raise ValueError('user cannot be None')
-
-        message = db.session.query(Message).filter(
-            Message.id == message_id,
-            Message.app_id == app_model.id,
-            Message.from_source == ('api' if isinstance(user, EndUser) else 'console'),
-            Message.from_end_user_id == (user.id if isinstance(user, EndUser) else None),
-            Message.from_account_id == (user.id if isinstance(user, Account) else None),
-        ).first()
-
-        if not message:
-            raise MessageNotExistsError()
-
-        current_app_model_config = app_model.app_model_config
-        more_like_this = current_app_model_config.more_like_this_dict
-
-        if not current_app_model_config.more_like_this or more_like_this.get("enabled", False) is False:
-            raise MoreLikeThisDisabledError()
-
-        app_model_config = message.app_model_config
-        model_dict = app_model_config.model_dict
-        completion_params = model_dict.get('completion_params')
-        completion_params['temperature'] = 0.9
-        model_dict['completion_params'] = completion_params
-        app_model_config.model = json.dumps(model_dict)
-
-        # parse files
-        message_file_parser = MessageFileParser(tenant_id=app_model.tenant_id, app_id=app_model.id)
-        file_objs = message_file_parser.transform_message_files(
-            message.files, app_model_config
-        )
-
-        application_manager = ApplicationManager()
-        return application_manager.generate(
-            tenant_id=app_model.tenant_id,
-            app_id=app_model.id,
-            app_model_config_id=app_model_config.id,
-            app_model_config_dict=app_model_config.to_dict(),
-            app_model_config_override=True,
-            user=user,
-            invoke_from=invoke_from,
-            inputs=message.inputs,
-            query=message.query,
-            files=file_objs,
-            conversation=None,
-            stream=streaming,
-            extras={
-                "auto_generate_conversation_name": False
-            }
-        )
-
     @classmethod
     def get_cleaned_inputs(cls, user_inputs: dict, app_model_config: AppModelConfig):
         if user_inputs is None:

api/services/errors/__init__.py

 # -*- coding:utf-8 -*-
 __all__ = [
     'base', 'conversation', 'message', 'index', 'app_model_config', 'account', 'document', 'dataset',
-    'app', 'completion', 'audio', 'file'
+    'completion', 'audio', 'file'
 ]
 
 from . import *

api/services/errors/app.py

-class MoreLikeThisDisabledError(Exception):
-    pass

api/services/workflow/defaults.py

+# default block config
+default_block_configs = [
+    {
+        "type": "llm",
+        "config": {
+            "prompt_templates": {
+                "chat_model": {
+                    "prompts": [
+                        {
+                            "role": "system",
+                            "text": "You are a helpful AI assistant."
+                        }
+                    ]
+                },
+                "completion_model": {
+                    "conversation_histories_role": {
+                        "user_prefix": "Human",
+                        "assistant_prefix": "Assistant"
+                    },
+                    "prompt": {
+                        "text": "Here is the chat histories between human and assistant, inside "
+                                "<histories></histories> XML tags.\n\n<histories>\n{{"
+                                "#histories#}}\n</histories>\n\n\nHuman: {{#query#}}\n\nAssistant:"
+                    },
+                    "stop": ["Human:"]
+                }
+            }
+        }
+    },
+    {
+        "type": "code",
+        "config": {
+            "variables": [
+                {
+                    "variable": "arg1",
+                    "value_selector": []
+                },
+                {
+                    "variable": "arg2",
+                    "value_selector": []
+                }
+            ],
+            "code_language": "python3",
+            "code": "def main(\n    arg1: int,\n    arg2: int,\n) -> int:\n    return {\n        \"result\": arg1 "
+                    "+ arg2\n    }",
+            "outputs": [
+                {
+                    "variable": "result",
+                    "variable_type": "number"
+                }
+            ]
+        }
+    },
+    {
+        "type": "template-transform",
+        "config": {
+            "variables": [
+                {
+                    "variable": "arg1",
+                    "value_selector": []
+                }
+            ],
+            "template": "{{ arg1 }}"
+        }
+    },
+    {
+        "type": "question-classifier",
+        "config": {
+            "instructions": ""  # TODO
+        }
+    }
+]

api/services/workflow/workflow_converter.py

+import json
+from typing import Optional
+
+from core.application_manager import ApplicationManager
+from core.entities.application_entities import ModelConfigEntity, PromptTemplateEntity, FileUploadEntity, \
+    ExternalDataVariableEntity, DatasetEntity, VariableEntity
+from core.model_runtime.utils import helper
+from core.workflow.entities.NodeEntities import NodeType
+from core.workflow.nodes.end.entities import EndNodeOutputType
+from extensions.ext_database import db
+from models.account import Account
+from models.model import App, AppMode, ChatbotAppEngine
+from models.workflow import Workflow, WorkflowType
+
+
+class WorkflowConverter:
+    """
+    App Convert to Workflow Mode
+    """
+
+    def convert_to_workflow(self, app_model: App, account: Account) -> Workflow:
+        """
+        Convert to workflow mode
+
+        - basic mode of chatbot app
+
+        - advanced mode of assistant app (for migration)
+
+        - completion app (for migration)
+
+        :param app_model: App instance
+        :param account: Account instance
+        :return: workflow instance
+        """
+        # get original app config
+        app_model_config = app_model.app_model_config
+
+        # convert app model config
+        application_manager = ApplicationManager()
+        application_manager.convert_from_app_model_config_dict(
+            tenant_id=app_model.tenant_id,
+            app_model_config_dict=app_model_config.to_dict()
+        )
+
+        # init workflow graph
+        graph = {
+            "nodes": [],
+            "edges": []
+        }
+
+        # Convert list:
+        # - variables -> start
+        # - model_config -> llm
+        # - prompt_template -> llm
+        # - file_upload -> llm
+        # - external_data_variables -> http-request
+        # - dataset -> knowledge-retrieval
+        # - show_retrieve_source -> knowledge-retrieval
+
+        # convert to start node
+        start_node = self._convert_to_start_node(
+            variables=app_model_config.variables
+        )
+
+        graph['nodes'].append(start_node)
+
+        # convert to http request node
+        if app_model_config.external_data_variables:
+            http_request_node = self._convert_to_http_request_node(
+                external_data_variables=app_model_config.external_data_variables
+            )
+
+            graph = self._append_node(graph, http_request_node)
+
+        # convert to knowledge retrieval node
+        if app_model_config.dataset:
+            knowledge_retrieval_node = self._convert_to_knowledge_retrieval_node(
+                dataset=app_model_config.dataset,
+                show_retrieve_source=app_model_config.show_retrieve_source
+            )
+
+            graph = self._append_node(graph, knowledge_retrieval_node)
+
+        # convert to llm node
+        llm_node = self._convert_to_llm_node(
+            model_config=app_model_config.model_config,
+            prompt_template=app_model_config.prompt_template,
+            file_upload=app_model_config.file_upload
+        )
+
+        graph = self._append_node(graph, llm_node)
+
+        # convert to end node by app mode
+        end_node = self._convert_to_end_node(app_model=app_model)
+
+        graph = self._append_node(graph, end_node)
+
+        # get new app mode
+        app_mode = self._get_new_app_mode(app_model)
+
+        # create workflow record
+        workflow = Workflow(
+            tenant_id=app_model.tenant_id,
+            app_id=app_model.id,
+            type=WorkflowType.from_app_mode(app_mode).value,
+            version='draft',
+            graph=json.dumps(graph),
+            created_by=account.id
+        )
+
+        db.session.add(workflow)
+        db.session.flush()
+
+        # create new app model config record
+        new_app_model_config = app_model_config.copy()
+        new_app_model_config.external_data_tools = ''
+        new_app_model_config.model = ''
+        new_app_model_config.user_input_form = ''
+        new_app_model_config.dataset_query_variable = None
+        new_app_model_config.pre_prompt = None
+        new_app_model_config.agent_mode = ''
+        new_app_model_config.prompt_type = 'simple'
+        new_app_model_config.chat_prompt_config = ''
+        new_app_model_config.completion_prompt_config = ''
+        new_app_model_config.dataset_configs = ''
+        new_app_model_config.chatbot_app_engine = ChatbotAppEngine.WORKFLOW.value \
+            if app_mode == AppMode.CHAT else ChatbotAppEngine.NORMAL.value
+        new_app_model_config.workflow_id = workflow.id
+
+        db.session.add(new_app_model_config)
+        db.session.commit()
+
+        return workflow
+
+    def _convert_to_start_node(self, variables: list[VariableEntity]) -> dict:
+        """
+        Convert to Start Node
+        :param variables: list of variables
+        :return:
+        """
+        return {
+            "id": "start",
+            "position": None,
+            "data": {
+                "title": "START",
+                "type": NodeType.START.value,
+                "variables": [helper.dump_model(v) for v in variables]
+            }
+        }
+
+    def _convert_to_http_request_node(self, external_data_variables: list[ExternalDataVariableEntity]) -> dict:
+        """
+        Convert API Based Extension to HTTP Request Node
+        :param external_data_variables: list of external data variables
+        :return:
+        """
+        # TODO: implement
+        pass
+
+    def _convert_to_knowledge_retrieval_node(self, new_app_mode: AppMode, dataset: DatasetEntity) -> dict:
+        """
+        Convert datasets to Knowledge Retrieval Node
+        :param new_app_mode: new app mode
+        :param dataset: dataset
+        :return:
+        """
+        # TODO: implement
+        if new_app_mode == AppMode.CHAT:
+            query_variable_selector = ["start", "sys.query"]
+        else:
+            pass
+
+        return {
+            "id": "knowledge-retrieval",
+            "position": None,
+            "data": {
+                "title": "KNOWLEDGE RETRIEVAL",
+                "type": NodeType.KNOWLEDGE_RETRIEVAL.value,
+            }
+        }
+
+    def _convert_to_llm_node(self, model_config: ModelConfigEntity,
+                             prompt_template: PromptTemplateEntity,
+                             file_upload: Optional[FileUploadEntity] = None) -> dict:
+        """
+        Convert to LLM Node
+        :param model_config: model config
+        :param prompt_template: prompt template
+        :param file_upload: file upload config (optional)
+        """
+        # TODO: implement
+        pass
+
+    def _convert_to_end_node(self, app_model: App) -> dict:
+        """
+        Convert to End Node
+        :param app_model: App instance
+        :return:
+        """
+        if app_model.mode == AppMode.CHAT.value:
+            return {
+                "id": "end",
+                "position": None,
+                "data": {
+                    "title": "END",
+                    "type": NodeType.END.value,
+                }
+            }
+        elif app_model.mode == "completion":
+            # for original completion app
+            return {
+                "id": "end",
+                "position": None,
+                "data": {
+                    "title": "END",
+                    "type": NodeType.END.value,
+                    "outputs": {
+                        "type": EndNodeOutputType.PLAIN_TEXT.value,
+                        "plain_text_selector": ["llm", "text"]
+                    }
+                }
+            }
+
+    def _create_edge(self, source: str, target: str) -> dict:
+        """
+        Create Edge
+        :param source: source node id
+        :param target: target node id
+        :return:
+        """
+        return {
+            "id": f"{source}-{target}",
+            "source": source,
+            "target": target
+        }
+
+    def _append_node(self, graph: dict, node: dict) -> dict:
+        """
+        Append Node to Graph
+
+        :param graph: Graph, include: nodes, edges
+        :param node: Node to append
+        :return:
+        """
+        previous_node = graph['nodes'][-1]
+        graph['nodes'].append(node)
+        graph['edges'].append(self._create_edge(previous_node['id'], node['id']))
+        return graph
+
+    def _get_new_app_mode(self, app_model: App) -> AppMode:
+        """
+        Get new app mode
+        :param app_model: App instance
+        :return: AppMode
+        """
+        if app_model.mode == "completion":
+            return AppMode.WORKFLOW
+        else:
+            return AppMode.value_of(app_model.mode)

api/services/workflow_service.py

+import json
+from datetime import datetime
+
+from extensions.ext_database import db
+from models.account import Account
+from models.model import App, ChatbotAppEngine
+from models.workflow import Workflow, WorkflowType
+from services.workflow.defaults import default_block_configs
+from services.workflow.workflow_converter import WorkflowConverter
+
+
+class WorkflowService:
+    """
+    Workflow Service
+    """
+
+    def get_draft_workflow(self, app_model: App) -> Workflow:
+        """
+        Get draft workflow
+        """
+        # fetch draft workflow by app_model
+        workflow = db.session.query(Workflow).filter(
+            Workflow.tenant_id == app_model.tenant_id,
+            Workflow.app_id == app_model.id,
+            Workflow.version == 'draft'
+        ).first()
+
+        # return draft workflow
+        return workflow
+
+    def sync_draft_workflow(self, app_model: App, graph: dict, account: Account) -> Workflow:
+        """
+        Sync draft workflow
+        """
+        # fetch draft workflow by app_model
+        workflow = self.get_draft_workflow(app_model=app_model)
+
+        # create draft workflow if not found
+        if not workflow:
+            workflow = Workflow(
+                tenant_id=app_model.tenant_id,
+                app_id=app_model.id,
+                type=WorkflowType.from_app_mode(app_model.mode).value,
+                version='draft',
+                graph=json.dumps(graph),
+                created_by=account.id
+            )
+            db.session.add(workflow)
+        # update draft workflow if found
+        else:
+            workflow.graph = json.dumps(graph)
+            workflow.updated_by = account.id
+            workflow.updated_at = datetime.utcnow()
+
+        # commit db session changes
+        db.session.commit()
+
+        # return draft workflow
+        return workflow
+
+    def get_default_block_configs(self) -> dict:
+        """
+        Get default block configs
+        """
+        # return default block config
+        return default_block_configs
+
+    def chatbot_convert_to_workflow(self, app_model: App) -> Workflow:
+        """
+        basic mode of chatbot app to workflow
+
+        :param app_model: App instance
+        :return:
+        """
+        # check if chatbot app is in basic mode
+        if app_model.app_model_config.chatbot_app_engine != ChatbotAppEngine.NORMAL:
+            raise ValueError('Chatbot app already in workflow mode')
+
+        # convert to workflow mode
+        workflow_converter = WorkflowConverter()
+        workflow = workflow_converter.convert_to_workflow(app_model=app_model)
+
+        return workflow