├── .gitignore
├── .dockerignore
├── .DS_Store
├── package.json
├── Dockerfile
└── index.js


/.gitignore:
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1 | node_modules
2 | .DS_store
3 | .env


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/.dockerignore:
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1 | node_modules
2 | npm-debug.log
3 | .env


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/.DS_Store:
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https://raw.githubusercontent.com/vmfunc/spotify-api-service/main/.DS_Store


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/package.json:
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1 | {
2 |   "dependencies": {
3 |     "cors": "^2.8.5",
4 |     "dotenv": "^16.0.3",
5 |     "express": "^4.18.2",
6 |     "nodemon": "^2.0.20"
7 |   }
8 | }
9 | 


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/Dockerfile:
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 1 | FROM node:19
 2 | 
 3 | # Create app directory
 4 | WORKDIR /usr/src/app
 5 | 
 6 | # Install app dependencies
 7 | # A wildcard is used to ensure both package.json AND package-lock.json are copied
 8 | # where available (npm@5+)
 9 | COPY package*.json ./
10 | 
11 | RUN npm install
12 | # If you are building your code for production
13 | # RUN npm ci --only=production
14 | 
15 | # Bundle app source
16 | COPY . .
17 | 
18 | # Expose our app's port to the docker daemon
19 | EXPOSE 8080
20 | 
21 | CMD [ "node", "index.js" ]


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/index.js:
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 1 | const express = require('express');
 2 | const app = express();
 3 | const cors = require('cors');
 4 | const querystring = require("node:querystring");
 5 | require("dotenv").config();
 6 | 
 7 | const NOW_PLAYING_ENDPOINT = `https://api.spotify.com/v1/me/player/currently-playing`;
 8 | const TOKEN_ENDPOINT = `https://accounts.spotify.com/api/token`;
 9 | const client_id = process.env.CLIENT_ID;
10 | const client_secret = process.env.CLIENT_SECRET;
11 | const refresh_token = process.env.REFRESH_TOKEN;
12 | 
13 | app.use(cors({
14 |   origin: ['https://www.samlinville.com', 'https://samlinville.com']
15 | }));
16 | 
17 | const ingredients = [
18 |   {
19 |     "id": "1",
20 |     "item": "Bread"
21 |   },
22 |   {
23 |     "id": "2",
24 |     "item": "Eggs"
25 |   },
26 |   {
27 |     "id": "3",
28 |     "item": "Milk"
29 |   },
30 |   {
31 |     "id": "4",
32 |     "item": "Butter"
33 |   },
34 | ];
35 | 
36 | app.get('/spotify/current', async (req, res) => {
37 |   var nowPlaying = await getNowPlayingItem(client_id, client_secret, refresh_token)
38 |     if (nowPlaying !== false) {
39 |         res.status(200).send({ message: nowPlaying });
40 |     } else {
41 |         res.status(400).send({ message: 'No data' });
42 |     }
43 |   }
44 | );
45 | app.listen(8080);
46 | 
47 | 
48 | const getAccessToken = async () => {
49 |   const basic = Buffer.from(`${client_id}:${client_secret}`).toString("base64");
50 |   const response = await fetch(TOKEN_ENDPOINT, {
51 |     method: "POST",
52 |     headers: {
53 |       Authorization: `Basic ${basic}`,
54 |       "Content-Type": "application/x-www-form-urlencoded",
55 |     },
56 |     body: querystring.stringify({
57 |       grant_type: "refresh_token",
58 |       refresh_token,
59 |     }),
60 |   });
61 |   return response.json();
62 | };
63 | 
64 | const getNowPlaying = async (client_id, client_secret, refresh_token) => {
65 |   const { access_token } = await getAccessToken(
66 |     client_id,
67 |     client_secret,
68 |     refresh_token
69 |   );
70 | 
71 |   return fetch(NOW_PLAYING_ENDPOINT, {
72 |     headers: {
73 |       Authorization: `Bearer ${access_token}`,
74 |     },
75 |   });
76 | };
77 | 
78 | async function getNowPlayingItem(client_id, client_secret, refresh_token) {
79 |     const response = await getNowPlaying(client_id, client_secret, refresh_token);
80 |     if (response.status === 204 || response.status > 400) {
81 |         return false;
82 |     }
83 | 
84 |     const song = await response.json();
85 |     const albumImageUrl = song.item.album.images[0].url;
86 |     const artist = song.item.artists.map((_artist) => _artist.name).join(", ");
87 |     const isPlaying = song.is_playing;
88 |     const songUrl = song.item.external_urls.spotify;
89 |     const title = song.item.name;
90 | 
91 |     return {
92 |         albumImageUrl,
93 |         artist,
94 |         isPlaying,
95 |         songUrl,
96 |         title,
97 |     };
98 | }


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