auth.py

import os
import tweepy

from flask import Flask, redirect, request

app = Flask(__name__)

callback = "http://localhost:8000/callback"
session = {}
consumer_key = os.getenv("CONSUMER_KEY")
consumer_secret = os.getenv("CONSUMER_SECRET")


@app.route("/auth")
def auth():
    auth = tweepy.OAuthHandler(consumer_key, consumer_secret, callback)
    url = auth.get_authorization_url()
    session["request_token"] = auth.request_token
    return redirect(url)


@app.route("/callback")
def twitter_callback():
    request_token = session["request_token"]
    del session["request_token"]

    auth = tweepy.OAuthHandler(consumer_key, consumer_secret, callback)
    auth.request_token = request_token
    verifier = request.args.get("oauth_verifier")
    auth.get_access_token(verifier)
    print(auth.access_token, auth.access_token_secret)

    return redirect("/app")


if __name__ == "__main__":
    app.run(port=8000)