├── README.md
├── main.py
└── templates
    └── index.html


/README.md:
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 1 | Authorization Code Flow Walkthrough
 2 | =======
 3 | 
 4 | How to do an authorization code flow, through Flask and Python.
 5 | 
 6 | ##Step 1
 7 | Fill in your credentials in main.py. This includes the CLIENT_ID and CLIENT_SECRET, which is left blank. You can obtain this by going to [Spotify Developers](https://developer.spotify.com/my-applications/#!/).
 8 | 
 9 | 
10 | ##Step 2
11 | Be sure that your redirect uri, inside your application page in the Spotify Developers website is "http://127.0.0.1:8080/callback/q".
12 | 
13 | 
14 | ##Step 3
15 | To see that it works, simply run the application by running '''python main.py''', and point your browser to http://127.0.0.1:8080.
16 | 
17 | 


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/main.py:
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 1 | import json
 2 | from flask import Flask, request, redirect, g, render_template
 3 | import requests
 4 | from urllib.parse import quote
 5 | 
 6 | # Authentication Steps, paramaters, and responses are defined at https://developer.spotify.com/web-api/authorization-guide/
 7 | # Visit this url to see all the steps, parameters, and expected response.
 8 | 
 9 | 
10 | app = Flask(__name__)
11 | 
12 | #  Client Keys
13 | CLIENT_ID = ""
14 | CLIENT_SECRET = ""
15 | 
16 | # Spotify URLS
17 | SPOTIFY_AUTH_URL = "https://accounts.spotify.com/authorize"
18 | SPOTIFY_TOKEN_URL = "https://accounts.spotify.com/api/token"
19 | SPOTIFY_API_BASE_URL = "https://api.spotify.com"
20 | API_VERSION = "v1"
21 | SPOTIFY_API_URL = "{}/{}".format(SPOTIFY_API_BASE_URL, API_VERSION)
22 | 
23 | # Server-side Parameters
24 | CLIENT_SIDE_URL = "http://127.0.0.1"
25 | PORT = 8080
26 | REDIRECT_URI = "{}:{}/callback/q".format(CLIENT_SIDE_URL, PORT)
27 | SCOPE = "playlist-modify-public playlist-modify-private"
28 | STATE = ""
29 | SHOW_DIALOG_bool = True
30 | SHOW_DIALOG_str = str(SHOW_DIALOG_bool).lower()
31 | 
32 | auth_query_parameters = {
33 |     "response_type": "code",
34 |     "redirect_uri": REDIRECT_URI,
35 |     "scope": SCOPE,
36 |     # "state": STATE,
37 |     # "show_dialog": SHOW_DIALOG_str,
38 |     "client_id": CLIENT_ID
39 | }
40 | 
41 | 
42 | @app.route("/")
43 | def index():
44 |     # Auth Step 1: Authorization
45 |     url_args = "&".join(["{}={}".format(key, quote(val)) for key, val in auth_query_parameters.items()])
46 |     auth_url = "{}/?{}".format(SPOTIFY_AUTH_URL, url_args)
47 |     return redirect(auth_url)
48 | 
49 | 
50 | @app.route("/callback/q")
51 | def callback():
52 |     # Auth Step 4: Requests refresh and access tokens
53 |     auth_token = request.args['code']
54 |     code_payload = {
55 |         "grant_type": "authorization_code",
56 |         "code": str(auth_token),
57 |         "redirect_uri": REDIRECT_URI,
58 |         'client_id': CLIENT_ID,
59 |         'client_secret': CLIENT_SECRET,
60 |     }
61 |     post_request = requests.post(SPOTIFY_TOKEN_URL, data=code_payload)
62 | 
63 |     # Auth Step 5: Tokens are Returned to Application
64 |     response_data = json.loads(post_request.text)
65 |     access_token = response_data["access_token"]
66 |     refresh_token = response_data["refresh_token"]
67 |     token_type = response_data["token_type"]
68 |     expires_in = response_data["expires_in"]
69 | 
70 |     # Auth Step 6: Use the access token to access Spotify API
71 |     authorization_header = {"Authorization": "Bearer {}".format(access_token)}
72 | 
73 |     # Get profile data
74 |     user_profile_api_endpoint = "{}/me".format(SPOTIFY_API_URL)
75 |     profile_response = requests.get(user_profile_api_endpoint, headers=authorization_header)
76 |     profile_data = json.loads(profile_response.text)
77 | 
78 |     # Get user playlist data
79 |     playlist_api_endpoint = "{}/playlists".format(profile_data["href"])
80 |     playlists_response = requests.get(playlist_api_endpoint, headers=authorization_header)
81 |     playlist_data = json.loads(playlists_response.text)
82 | 
83 |     # Combine profile and playlist data to display
84 |     display_arr = [profile_data] + playlist_data["items"]
85 |     return render_template("index.html", sorted_array=display_arr)
86 | 
87 | 
88 | if __name__ == "__main__":
89 |     app.run(debug=True, port=PORT)
90 | 


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/templates/index.html:
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1 | <doctype html>
2 | <html>
3 | 	{% for item in sorted_array%}
4 | 	<p> {{ item }} </p>
5 | 	{% endfor %}
6 | </html>
7 | 


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