Files
dify/api/controllers/web/completion.py

238 lines
9.6 KiB
Python

import logging
from flask_restx import reqparse
from werkzeug.exceptions import InternalServerError, NotFound
import services
from controllers.web import api
from controllers.web.error import (
AppUnavailableError,
CompletionRequestError,
ConversationCompletedError,
NotChatAppError,
NotCompletionAppError,
ProviderModelCurrentlyNotSupportError,
ProviderNotInitializeError,
ProviderQuotaExceededError,
)
from controllers.web.error import InvokeRateLimitError as InvokeRateLimitHttpError
from controllers.web.wraps import WebApiResource
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 libs import helper
from libs.helper import uuid_value
from models.model import AppMode
from services.app_generate_service import AppGenerateService
from services.errors.llm import InvokeRateLimitError
logger = logging.getLogger(__name__)
# define completion api for user
class CompletionApi(WebApiResource):
@api.doc("Create Completion Message")
@api.doc(description="Create a completion message for text generation applications.")
@api.doc(
params={
"inputs": {"description": "Input variables for the completion", "type": "object", "required": True},
"query": {"description": "Query text for completion", "type": "string", "required": False},
"files": {"description": "Files to be processed", "type": "array", "required": False},
"response_mode": {
"description": "Response mode: blocking or streaming",
"type": "string",
"enum": ["blocking", "streaming"],
"required": False,
},
"retriever_from": {"description": "Source of retriever", "type": "string", "required": False},
}
)
@api.doc(
responses={
200: "Success",
400: "Bad Request",
401: "Unauthorized",
403: "Forbidden",
404: "App Not Found",
500: "Internal Server Error",
}
)
def post(self, app_model, end_user):
if app_model.mode != "completion":
raise NotCompletionAppError()
parser = reqparse.RequestParser()
parser.add_argument("inputs", type=dict, required=True, location="json")
parser.add_argument("query", type=str, location="json", default="")
parser.add_argument("files", type=list, required=False, location="json")
parser.add_argument("response_mode", type=str, choices=["blocking", "streaming"], location="json")
parser.add_argument("retriever_from", type=str, required=False, default="web_app", location="json")
args = parser.parse_args()
streaming = args["response_mode"] == "streaming"
args["auto_generate_name"] = False
try:
response = AppGenerateService.generate(
app_model=app_model, user=end_user, args=args, invoke_from=InvokeFrom.WEB_APP, streaming=streaming
)
return helper.compact_generate_response(response)
except services.errors.conversation.ConversationNotExistsError:
raise NotFound("Conversation Not Exists.")
except services.errors.conversation.ConversationCompletedError:
raise ConversationCompletedError()
except services.errors.app_model_config.AppModelConfigBrokenError:
logger.exception("App model config broken.")
raise AppUnavailableError()
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:
logger.exception("internal server error.")
raise InternalServerError()
class CompletionStopApi(WebApiResource):
@api.doc("Stop Completion Message")
@api.doc(description="Stop a running completion message task.")
@api.doc(params={"task_id": {"description": "Task ID to stop", "type": "string", "required": True}})
@api.doc(
responses={
200: "Success",
400: "Bad Request",
401: "Unauthorized",
403: "Forbidden",
404: "Task Not Found",
500: "Internal Server Error",
}
)
def post(self, app_model, end_user, task_id):
if app_model.mode != "completion":
raise NotCompletionAppError()
AppQueueManager.set_stop_flag(task_id, InvokeFrom.WEB_APP, end_user.id)
return {"result": "success"}, 200
class ChatApi(WebApiResource):
@api.doc("Create Chat Message")
@api.doc(description="Create a chat message for conversational applications.")
@api.doc(
params={
"inputs": {"description": "Input variables for the chat", "type": "object", "required": True},
"query": {"description": "User query/message", "type": "string", "required": True},
"files": {"description": "Files to be processed", "type": "array", "required": False},
"response_mode": {
"description": "Response mode: blocking or streaming",
"type": "string",
"enum": ["blocking", "streaming"],
"required": False,
},
"conversation_id": {"description": "Conversation UUID", "type": "string", "required": False},
"parent_message_id": {"description": "Parent message UUID", "type": "string", "required": False},
"retriever_from": {"description": "Source of retriever", "type": "string", "required": False},
}
)
@api.doc(
responses={
200: "Success",
400: "Bad Request",
401: "Unauthorized",
403: "Forbidden",
404: "App Not Found",
500: "Internal Server Error",
}
)
def post(self, app_model, end_user):
app_mode = AppMode.value_of(app_model.mode)
if app_mode not in {AppMode.CHAT, AppMode.AGENT_CHAT, AppMode.ADVANCED_CHAT}:
raise NotChatAppError()
parser = reqparse.RequestParser()
parser.add_argument("inputs", type=dict, required=True, location="json")
parser.add_argument("query", type=str, required=True, location="json")
parser.add_argument("files", type=list, required=False, location="json")
parser.add_argument("response_mode", type=str, choices=["blocking", "streaming"], location="json")
parser.add_argument("conversation_id", type=uuid_value, location="json")
parser.add_argument("parent_message_id", type=uuid_value, required=False, location="json")
parser.add_argument("retriever_from", type=str, required=False, default="web_app", location="json")
args = parser.parse_args()
streaming = args["response_mode"] == "streaming"
args["auto_generate_name"] = False
try:
response = AppGenerateService.generate(
app_model=app_model, user=end_user, args=args, invoke_from=InvokeFrom.WEB_APP, streaming=streaming
)
return helper.compact_generate_response(response)
except services.errors.conversation.ConversationNotExistsError:
raise NotFound("Conversation Not Exists.")
except services.errors.conversation.ConversationCompletedError:
raise ConversationCompletedError()
except services.errors.app_model_config.AppModelConfigBrokenError:
logger.exception("App model config broken.")
raise AppUnavailableError()
except ProviderTokenNotInitError as ex:
raise ProviderNotInitializeError(ex.description)
except QuotaExceededError:
raise ProviderQuotaExceededError()
except ModelCurrentlyNotSupportError:
raise ProviderModelCurrentlyNotSupportError()
except InvokeRateLimitError as ex:
raise InvokeRateLimitHttpError(ex.description)
except InvokeError as e:
raise CompletionRequestError(e.description)
except ValueError as e:
raise e
except Exception as e:
logger.exception("internal server error.")
raise InternalServerError()
class ChatStopApi(WebApiResource):
@api.doc("Stop Chat Message")
@api.doc(description="Stop a running chat message task.")
@api.doc(params={"task_id": {"description": "Task ID to stop", "type": "string", "required": True}})
@api.doc(
responses={
200: "Success",
400: "Bad Request",
401: "Unauthorized",
403: "Forbidden",
404: "Task Not Found",
500: "Internal Server Error",
}
)
def post(self, app_model, end_user, task_id):
app_mode = AppMode.value_of(app_model.mode)
if app_mode not in {AppMode.CHAT, AppMode.AGENT_CHAT, AppMode.ADVANCED_CHAT}:
raise NotChatAppError()
AppQueueManager.set_stop_flag(task_id, InvokeFrom.WEB_APP, end_user.id)
return {"result": "success"}, 200
api.add_resource(CompletionApi, "/completion-messages")
api.add_resource(CompletionStopApi, "/completion-messages/<string:task_id>/stop")
api.add_resource(ChatApi, "/chat-messages")
api.add_resource(ChatStopApi, "/chat-messages/<string:task_id>/stop")