github oauth example

github_oauth.py

import requests
from flask import Flask
from flask import request, jsonify


# Register your application and paste CLIENT_ID and CLIENT_SECRET below.
# https://github.com/settings/applications/new
CLIENT_ID = 'YOUR_CLIENT_ID'
CLIENT_SECRET = 'YOUR_CLIENT_SECRET'
SCOPE = 'user'
RANDOM_STATE = 'random_state'

app = Flask(__name__)


@app.route('/')
def home():
    return f'<a href="https://github.com/login/oauth/authorize?client_id={CLIENT_ID}&scope={SCOPE}&state={RANDOM_STATE}">github login</a>'


@app.route('/redirect')
def redirect():
    code = request.args['code']
    state = request.args['state']
    assert state == RANDOM_STATE

    # Give a temporary code and get the real access token
    r = requests.post(
        'https://github.com/login/oauth/access_token',
        headers={'Accept': 'application/json'},
        data={
            'client_id': CLIENT_ID,
            'client_secret': CLIENT_SECRET,
            'code': code,
            'state': RANDOM_STATE,
        })
    data = r.json()
    access_token = data['access_token']
    scope = data['scope']
    print(f'access_token = {access_token}')
    print(f'scope = {scope}')

    # Get user information with the access token
    r = requests.get(
        'https://api.github.com/user',
        headers={'Authorization': f'token {access_token}'})

    data = r.json()
    return jsonify(data)