app.py

from flask import Flask, render_template
import requests, json, os

app = Flask(__name__, template_folder='.')

@app.route('/')
def homepage():

    authtoken = open(os.environ['AUTHTOKEN'], 'r').readline().strip()

    headers = {
      "Authorization": "token " + authtoken
    }

    r = requests.get(
          'https://api.github.com/user/repos',
          headers=headers
        )
    return render_template('repos.html', repos=json.loads(r.text))

if __name__ == '__main__':
  app.run(host='0.0.0.0', debug=True)