mirror of
https://github.com/langgenius/dify.git
synced 2025-07-13 12:10:29 +00:00
28 lines
1023 B
Python
28 lines
1023 B
Python
from collections.abc import Generator, Mapping
|
|
from typing import Generic, Optional, TypeVar
|
|
|
|
from pydantic import BaseModel
|
|
|
|
|
|
class BaseBackwardsInvocation:
|
|
@classmethod
|
|
def convert_to_event_stream(cls, response: Generator[BaseModel | Mapping | str, None, None] | BaseModel | Mapping):
|
|
if isinstance(response, Generator):
|
|
try:
|
|
for chunk in response:
|
|
if isinstance(chunk, BaseModel | dict):
|
|
yield BaseBackwardsInvocationResponse(data=chunk).model_dump_json().encode()
|
|
except Exception as e:
|
|
error_message = BaseBackwardsInvocationResponse(error=str(e)).model_dump_json()
|
|
yield error_message.encode()
|
|
else:
|
|
yield BaseBackwardsInvocationResponse(data=response).model_dump_json().encode()
|
|
|
|
|
|
T = TypeVar("T", bound=dict | Mapping | str | bool | int | BaseModel)
|
|
|
|
|
|
class BaseBackwardsInvocationResponse(BaseModel, Generic[T]):
|
|
data: Optional[T] = None
|
|
error: str = ""
|