nova-api/api/main.py

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2023-06-23 02:18:28 +02:00
import os
import httpx
import fastapi
from starlette.requests import Request
from starlette.responses import StreamingResponse
from starlette.background import BackgroundTask
from fastapi.middleware.cors import CORSMiddleware
from dotenv import load_dotenv
import security
load_dotenv()
target_api_client = httpx.AsyncClient(base_url='https://api.openai.com/')
app = fastapi.FastAPI()
app.add_middleware(
CORSMiddleware,
allow_origins=['*'],
allow_credentials=True,
allow_methods=['*'],
allow_headers=['*']
)
@app.on_event('startup')
async def startup_event():
"""Read up the API server."""
security.enable_proxy()
security.ip_protection_check()
@app.get('/')
async def root():
"""Returns the root endpoint."""
return {
'status': 'ok',
'discord': 'https://discord.gg/mX9BYdFeQF',
'github': 'https://github.com/Luna-OSS'
}
async def _reverse_proxy(request: Request):
target_url = f'https://api.openai.com/v1/{request.url.path}'
request_to_api = target_api_client.build_request(
method=request.method,
url=target_url,
headers={
'Authorization': 'Bearer ' + os.getenv('OPENAI_KEY'),
'Content-Type': 'application/json'
},
content=await request.body(),
)
api_response = await target_api_client.send(request_to_api, stream=True)
print(f'[{request.method}] {request.url.path} {api_response.status_code}')
return StreamingResponse(
api_response.aiter_raw(),
status_code=api_response.status_code,
headers=api_response.headers,
background=BackgroundTask(api_response.aclose)
)
app.add_route('/{path:path}', _reverse_proxy, ['GET', 'POST', 'PUT', 'DELETE', 'PATCH'])