api.py

import responder
import requests
import os
import urllib
from loguru import logger

api = responder.API()


def authorize_url():
    """Generate authorization uri"""
    app_url = os.getenv('APP_URL', 'http://localhost')
    logger.debug(f"APP_URL={app_url}")
    params = {
        "client_id": os.getenv('STRAVA_CLIENT_ID'),
        "response_type": "code",
        "redirect_uri": f"{app_url}:5042/authorization_successful",
        "scope": "read,profile:read_all,activity:read",
        "state": 'https://github.com/sladkovm/strava-oauth',
        "approval_prompt": "force"
    }
    values_url = urllib.parse.urlencode(params)
    base_url = 'https://www.strava.com/oauth/authorize'
    rv = base_url + '?' + values_url
    logger.debug(rv)
    return rv


@api.route("/")
def home(req, resp):
    resp.text = "Welcome to strava-oauth"


@api.route("/client")
def client(req, resp):
    resp.text = os.getenv('STRAVA_CLIENT_ID')


@api.route("/authorize")
def authorize(req, resp):
    """Redirect user to the Strava Authorization page"""
    api.redirect(resp, location=authorize_url())


@api.route("/authorization_successful")
def authorization_successful(req, resp):
    """Exchange code for a user token"""
    params = {
        "client_id": os.getenv('STRAVA_CLIENT_ID'),
        "client_secret": os.getenv('STRAVA_CLIENT_SECRET'),
        "code": req.params.get('code'),
        "grant_type": "authorization_code"
    }
    r = requests.post("https://www.strava.com/oauth/token", params)
    logger.debug(r.text)
    resp.text = r.text


if __name__ == "__main__":
    api.run(address="0.0.0.0")