Fastapi: Can fastapi proxy another site as a response to the request?

[hkhk366]

This may be a silly question. Can fastapi proxy another site as a response to the request?

I did some research. All pages I found are Nginx reverse proxy fastapi. I already did that to solve the SSL problem.

My system workflow:

RedirectResponse is a rewrite, not a proxy.
Static Files are for local files.
HTMLResponse is for static HTML.

Can you give me some tips on how to proxy another site in fastapi? Thank you.

[eelkeh]

I have the same issue! Did you find a solution?

[mickeypash]

This is not quite working but it might be a start?

from fastapi import FastAPI, Response
import requests

app = FastAPI()

def _proxy(*args, **kwargs):
    t_resp = requests.request(
        method="GET",
        url="https://google.com/",
        allow_redirects=False)

    response = Response(content=t_resp.contents, status_code=t_resp.status_code)
    return response

@app.get("/")
def proxy():
    return _proxy()

[thomascrha]

How would I allow any path to be resolved by the proxy ? With flask you can do something like this

from flask import Flask
from requests import get

app = Flask('__main__')
SITE_NAME = 'https://google.com/'

@app.route('/', defaults={'path': ''})
@app.route('/<path:path>')
def proxy(path):
  return get(f'{SITE_NAME}{path}').content

app.run(host='0.0.0.0', port=8080)

Can I allow wildcard paths with fastAPI ?

[eelkeh]

Any change that anyone made progress with this? I'm still looking for a solution

[jtbaker]

@eelkeh @thomas-maschler I just ran into this myself and found it was covered in the docs here referencing accessing a file system. A proxy should resolve the path same way.

from fastapi import FastAPI

app = FastAPI()


@app.get("/files/{file_path:path}")
async def read_file(file_path: str):
    return {"file_path": file_path}

so my proxy use case will look like:

@app.get(“/tiles/{path:path}”)
async def tile_request(path: str, response: Response):
    async with httpx.AsyncClient() as client:
        proxy = await client.get(f“http://containername:7800/{path}”)
    response.body = proxy.content
    response.status_code = proxy.status_code
    return response