├── .gitignore
├── Procfile
├── requirements.txt
└── api.py


/.gitignore:
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1 | json-key.json
2 | 


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/Procfile:
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1 | web: python api.py
2 | 


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/requirements.txt:
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1 | google-api-python-client
2 | Flask
3 | 


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/api.py:
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 1 | from __future__ import print_function
 2 | import os
 3 | import base64
 4 | from flask import Flask, jsonify, make_response
 5 | from oauth2client.service_account import ServiceAccountCredentials
 6 | 
 7 | app = Flask(__name__)
 8 | 
 9 | # The scope for the OAuth2 request.
10 | SCOPE = 'https://www.googleapis.com/auth/analytics.readonly'
11 | 
12 | # Defines a method to get an access token from the ServiceAccount object.
13 | def get_access_token():
14 |   return ServiceAccountCredentials.from_json_keyfile_name(
15 |       "json-key.json", SCOPE).get_access_token().access_token
16 | 
17 | @app.route("/token")
18 | def token():
19 |     resp = make_response(jsonify(**{"token": get_access_token()}))
20 |     resp.headers['Access-Control-Allow-Origin'] = '*'
21 |     return resp
22 | 
23 | if __name__ == "__main__":
24 |     with open("json-key.json", "w") as f:
25 |         f.write(base64.b64decode(os.environ.get("JSON_KEY")).decode('UTF-8'))
26 |     port = int(os.environ.get("PORT", 5000))
27 |     app.run(host='0.0.0.0', port=port)
28 | 


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