chat2api/app.py
2024-04-21 23:43:48 +08:00

62 lines
2.1 KiB
Python

from fastapi import FastAPI, Request, Depends, HTTPException
from fastapi.responses import StreamingResponse, JSONResponse
from fastapi.middleware.cors import CORSMiddleware
from chatgpt.ChatService import ChatService
from chatgpt.reverseProxy import chatgpt_reverse_proxy
from utils.authorization import verify_token
from utils.retry import async_retry
app = FastAPI()
app.add_middleware(
CORSMiddleware,
allow_origins=["*"],
allow_credentials=True,
allow_methods=["*"],
allow_headers=["*"],
)
async def to_send_conversation(request_data, access_token):
chat_service = ChatService(request_data, access_token)
await chat_service.get_chat_requirements()
return chat_service
@app.post("/v1/chat/completions")
async def send_conversation(request: Request, token=Depends(verify_token)):
access_token = None
if token and token.startswith("eyJhbGciOi"):
access_token = token
try:
request_data = await request.json()
except Exception:
raise HTTPException(status_code=400, detail={"error": "Invalid JSON body"})
chat_service = await async_retry(to_send_conversation, request_data, access_token)
chat_service.prepare_send_conversation()
stream = request_data.get("stream", False)
if stream is True:
return StreamingResponse(await chat_service.send_conversation_for_stream(), media_type="text/event-stream")
else:
return JSONResponse(await chat_service.send_conversation(), media_type="application/json")
@app.api_route("/{path:path}", methods=["GET", "POST", "PUT", "DELETE", "OPTIONS", "HEAD", "PATCH", "TRACE"])
async def reverse_proxy(request: Request, path: str):
return chatgpt_reverse_proxy(request, path)
if __name__ == "__main__":
import uvicorn
log_config = uvicorn.config.LOGGING_CONFIG
default_format = "%(asctime)s | %(levelname)s | %(message)s"
access_format = r'%(asctime)s | %(levelname)s | %(client_addr)s: %(request_line)s %(status_code)s'
log_config["formatters"]["default"]["fmt"] = default_format
log_config["formatters"]["access"]["fmt"] = access_format
uvicorn.run("app:app", host="0.0.0.0", port=5005)