Receive

receive is a python library for hosting temporary web servers and receiving values from their route handlers via futures.

Install

Stable Release

pip install receive

Latest Features

pip install git+https://github.com/BlakeASmith/receive

Usage

Handle a GET request

First, define a route handler as follows:

import receive

@receive.get_request(route="/callback", port=5000)
async def get_query_param_from_request(req):
    return req.query["code"]

The req parameter is an aiohttp.web.Request object. In this example we return the code query parameter from the request.

Now we can start a temporary web server, and get our return value from the first request that comes in.

import asyncio

async def main():
    future = await get_query_param_from_request()
    code = await future
    print(code)
    
    
if __name__ == "__main__":
    asyncio.get_event_loop().run_until_complete(main)

The get_query_param_from_request function will start a web server in the background and return a asyncio.Future object providing access to the return value from the handler. get_query_param_from_request will return immediately, and invoking await on the returned future will block until a GET 0.0.0.0:5000/callback request hits the server. At that time the future will be completed with the value returned from the request handler and the server will be shutdown.

Tests

Run the unit tests using pytest

poetry install
poetry run pytest