Full Code of spotify/spotify-web-playback-sdk-example for AI

Repository: spotify/spotify-web-playback-sdk-example
Branch: main
Commit: d22700174073
Files: 17
Total size: 26.2 KB

Directory structure:
gitextract_zz6ucqgh/

├── .gitignore
├── LICENSE
├── README.md
├── catalog-info.yaml
├── package.json
├── public/
│   ├── index.html
│   ├── manifest.json
│   └── robots.txt
├── server/
│   └── index.js
└── src/
    ├── App.css
    ├── App.js
    ├── App.test.js
    ├── Login.js
    ├── WebPlayback.jsx
    ├── index.css
    ├── index.js
    └── setupProxy.js

================================================
FILE CONTENTS
================================================

================================================
FILE: .gitignore
================================================
# Logs
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================================================
FILE: LICENSE
================================================
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================================================
FILE: README.md
================================================
# Web Playback SDK Javascript Tutorial

This repository contains the source code for the [Web Playback SDK Guide](https://developer.spotify.com/documentation/web-playback-sdk/guide/).

## Using your own credentials

You will need to register your app and get your own credentials from the
[Spotify for Developers Dashboard](https://developer.spotify.com/dashboard/)

To do so, go to your Spotify for Developers Dashboard, create your
application and register the following callback URI:

`http://localhost:3000/auth/callback`

Once you have created your app, create a file called `.env` in the root folder
of the repository with your Spotify credentials:

```bash
SPOTIFY_CLIENT_ID='my_client_id'
SPOTIFY_CLIENT_SECRET='my_client_secret'
```

## Installation

These examples run on Node.js. On its
[website](http://www.nodejs.org/download/) you can find instructions on how to
install it.

Once installed, clone the repository and install its dependencies running:

```bash
npm install
```

## Running the example

Start both client and server with the following command:

```bash
npm run dev
```

The React application will start on `http://localhost:3000`

## Resources

- Follow [@SpotifyPlatform](https://twitter.com/SpotifyPlatform) on Twitter for Spotify for Developers updates.
- Join the [Spotify for Developers Community Forum](https://community.spotify.com/t5/Spotify-for-Developers/bd-p/Spotify_Developer).

## Code of Conduct

This project adheres to the [Open Source Code of
Conduct](https://github.com/spotify/code-of-conduct/blob/master/code-of-conduct.md).
By participating, you are expected to honor this code.

## License

Copyright 2021 Spotify AB.

Licensed under the Apache License, Version 2.0: http://www.apache.org/licenses/LICENSE-2.0



================================================
FILE: catalog-info.yaml
================================================
apiVersion: backstage.io/v1alpha1
kind: Component
metadata:
  name: spotify-web-playback-sdk-example
spec:
  type: library
  owner: opx-partner-activation


================================================
FILE: package.json
================================================
{
  "name": "web-playback-sdk-sample-app",
  "version": "0.1.0",
  "private": true,
  "dependencies": {
    "react": "^17.0.2",
    "react-dom": "^17.0.2",
    "react-scripts": "4.0.3"
  },
  "scripts": {
    "start": "react-scripts start",
    "build": "react-scripts build",
    "test": "react-scripts test",
    "eject": "react-scripts eject",
    "server": "node server",
    "dev": "run-p server start"
  },
  "browserslist": {
    "production": [
      ">0.2%",
      "not dead",
      "not op_mini all"
    ],
    "development": [
      "last 1 chrome version",
      "last 1 firefox version",
      "last 1 safari version"
    ]
  },
  "devDependencies": {
    "dotenv": "^10.0.0",
    "express": "^4.17.1",
    "http-proxy-middleware": "^2.0.0",
    "npm-run-all": "^4.1.5",
    "request": "^2.88.2"
  }
}


================================================
FILE: public/index.html
================================================
<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="utf-8" />
    <link rel="icon" href="%PUBLIC_URL%/favicon.ico" />
    <meta name="viewport" content="width=device-width, initial-scale=1" />
    <meta name="theme-color" content="#000000" />
    <meta
      name="description"
      content="Web site created using create-react-app"
    />
    <link rel="apple-touch-icon" href="%PUBLIC_URL%/logo192.png" />
    <!--
      manifest.json provides metadata used when your web app is installed on a
      user's mobile device or desktop. See https://developers.google.com/web/fundamentals/web-app-manifest/
    -->
    <link rel="manifest" href="%PUBLIC_URL%/manifest.json" />
    <!--
      Notice the use of %PUBLIC_URL% in the tags above.
      It will be replaced with the URL of the `public` folder during the build.
      Only files inside the `public` folder can be referenced from the HTML.

      Unlike "/favicon.ico" or "favicon.ico", "%PUBLIC_URL%/favicon.ico" will
      work correctly both with client-side routing and a non-root public URL.
      Learn how to configure a non-root public URL by running `npm run build`.
    -->
    <title>React App</title>
  </head>
  <body>
    <noscript>You need to enable JavaScript to run this app.</noscript>
    <div id="root"></div>
    <!--
      This HTML file is a template.
      If you open it directly in the browser, you will see an empty page.

      You can add webfonts, meta tags, or analytics to this file.
      The build step will place the bundled scripts into the <body> tag.

      To begin the development, run `npm start` or `yarn start`.
      To create a production bundle, use `npm run build` or `yarn build`.
    -->
  </body>
</html>


================================================
FILE: public/manifest.json
================================================
{
  "short_name": "React App",
  "name": "Create React App Sample",
  "icons": [
    {
      "src": "favicon.ico",
      "sizes": "64x64 32x32 24x24 16x16",
      "type": "image/x-icon"
    },
    {
      "src": "logo192.png",
      "type": "image/png",
      "sizes": "192x192"
    },
    {
      "src": "logo512.png",
      "type": "image/png",
      "sizes": "512x512"
    }
  ],
  "start_url": ".",
  "display": "standalone",
  "theme_color": "#000000",
  "background_color": "#ffffff"
}


================================================
FILE: public/robots.txt
================================================
# https://www.robotstxt.org/robotstxt.html
User-agent: *
Disallow:


================================================
FILE: server/index.js
================================================
const express = require('express')
const request = require('request');
const dotenv = require('dotenv');

const port = 5000

global.access_token = ''

dotenv.config()

var spotify_client_id = process.env.SPOTIFY_CLIENT_ID
var spotify_client_secret = process.env.SPOTIFY_CLIENT_SECRET

var spotify_redirect_uri = 'http://localhost:3000/auth/callback'

var generateRandomString = function (length) {
  var text = '';
  var possible = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789';

  for (var i = 0; i < length; i++) {
    text += possible.charAt(Math.floor(Math.random() * possible.length));
  }
  return text;
};

var app = express();

app.get('/auth/login', (req, res) => {

  var scope = "streaming user-read-email user-read-private"
  var state = generateRandomString(16);

  var auth_query_parameters = new URLSearchParams({
    response_type: "code",
    client_id: spotify_client_id,
    scope: scope,
    redirect_uri: spotify_redirect_uri,
    state: state
  })

  res.redirect('https://accounts.spotify.com/authorize/?' + auth_query_parameters.toString());
})

app.get('/auth/callback', (req, res) => {

  var code = req.query.code;

  var authOptions = {
    url: 'https://accounts.spotify.com/api/token',
    form: {
      code: code,
      redirect_uri: spotify_redirect_uri,
      grant_type: 'authorization_code'
    },
    headers: {
      'Authorization': 'Basic ' + (Buffer.from(spotify_client_id + ':' + spotify_client_secret).toString('base64')),
      'Content-Type' : 'application/x-www-form-urlencoded'
    },
    json: true
  };

  request.post(authOptions, function(error, response, body) {
    if (!error && response.statusCode === 200) {
      access_token = body.access_token;
      res.redirect('/')
    }
  });

})

app.get('/auth/token', (req, res) => {
  res.json({ access_token: access_token})
})

app.listen(port, () => {
  console.log(`Listening at http://localhost:${port}`)
})


================================================
FILE: src/App.css
================================================
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html, body {
  height: 100%;
}

body {
  background-color: #333;
  color: #eee;
  font-family: Helvetica, Arial;
  font-size: 3vmin;
}

.App {
  text-align: center;
}

.App-header {
  background-color: #282c34;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  font-size: calc(10px + 2vmin);
  color: white;
}

.hidden {
  display: none;
}


.background {
  left: 0;
  right: 0;
  top: 0;
  bottom: 0;
  background-size: cover;
  background-position: center center;
  /*filter: blur(8em) opacity(0.6);*/
  position: absolute;
}

.main-wrapper {
  padding-top: 45px;
  align-items: center;
  display: flex;
  height: 100%;
  margin: 0 auto;
  justify-content: center;
  position: relative;
  width: 80%;
  z-index: 1;
}

.container {
  align-items: center;
  display: flex;
  justify-content: center;
  height: 100%;
}

.main-container {
  flex: 1;
}

.now-playing__name {
  font-size: 1.5em;
  margin-bottom: 0.2em;
}

.now-playing__artist {
  margin-bottom: 1em;
}

.now-playing__status {
  margin-bottom: 1em;
}

.now-playing__cover {
  border-radius: 8px;
  float: left;
  margin-right: 10px;
  text-align: right;
  width: 300px;
  height: 300px;
}

.now-playing__side {
  margin-left: 2%;
  width: 45%;
}

.btn-spotify {
  background-color:#44c767;
  border-radius:28px;
  border:1px solid #18ab29;
  display:inline-block;
  cursor:pointer;
  color:#ffffff;
  font-family:Arial;
  font-size:17px;
  padding:16px 31px;
  text-decoration:none;
  text-shadow:0px 1px 0px #2f6627;
}
.btn-spotify:active {
  position:relative;
  top:1px;
}

img { background: transparent; }


================================================
FILE: src/App.js
================================================
import React, { useState, useEffect } from 'react';
import WebPlayback from './WebPlayback'
import Login from './Login'
import './App.css';

function App() {

  const [token, setToken] = useState('');

  useEffect(() => {

    async function getToken() {
      const response = await fetch('/auth/token');
      const json = await response.json();
      setToken(json.access_token);
    }

    getToken();

  }, []);

  return (
    <>
        { (token === '') ? <Login/> : <WebPlayback token={token} /> }
    </>
  );
}


export default App;


================================================
FILE: src/App.test.js
================================================
import { render, screen } from '@testing-library/react';
import App from './App';

test('renders learn react link', () => {
  render(<App />);
  const linkElement = screen.getByText(/learn react/i);
  expect(linkElement).toBeInTheDocument();
});


================================================
FILE: src/Login.js
================================================
import React from 'react';

function Login() {
    return (
        <div className="App">
            <header className="App-header">
                <a className="btn-spotify" href="/auth/login" >
                    Login with Spotify 
                </a>
            </header>
        </div>
    );
}

export default Login;



================================================
FILE: src/WebPlayback.jsx
================================================
import React, { useState, useEffect } from 'react';

const track = {
    name: "",
    album: {
        images: [
            { url: "" }
        ]
    },
    artists: [
        { name: "" }
    ]
}

function WebPlayback(props) {

    const [is_paused, setPaused] = useState(false);
    const [is_active, setActive] = useState(false);
    const [player, setPlayer] = useState(undefined);
    const [current_track, setTrack] = useState(track);

    useEffect(() => {

        const script = document.createElement("script");
        script.src = "https://sdk.scdn.co/spotify-player.js";
        script.async = true;

        document.body.appendChild(script);

        window.onSpotifyWebPlaybackSDKReady = () => {

            const player = new window.Spotify.Player({
                name: 'Web Playback SDK',
                getOAuthToken: cb => { cb(props.token); },
                volume: 0.5
            });

            setPlayer(player);

            player.addListener('ready', ({ device_id }) => {
                console.log('Ready with Device ID', device_id);
            });

            player.addListener('not_ready', ({ device_id }) => {
                console.log('Device ID has gone offline', device_id);
            });

            player.addListener('player_state_changed', ( state => {

                if (!state) {
                    return;
                }

                setTrack(state.track_window.current_track);
                setPaused(state.paused);

                player.getCurrentState().then( state => { 
                    (!state)? setActive(false) : setActive(true) 
                });

            }));

            player.connect();

        };
    }, []);

    if (!is_active) { 
        return (
            <>
                <div className="container">
                    <div className="main-wrapper">
                        <b> Instance not active. Transfer your playback using your Spotify app </b>
                    </div>
                </div>
            </>)
    } else {
        return (
            <>
                <div className="container">
                    <div className="main-wrapper">

                        <img src={current_track.album.images[0].url} className="now-playing__cover" alt="" />

                        <div className="now-playing__side">
                            <div className="now-playing__name">{current_track.name}</div>
                            <div className="now-playing__artist">{current_track.artists[0].name}</div>

                            <button className="btn-spotify" onClick={() => { player.previousTrack() }} >
                                &lt;&lt;
                            </button>

                            <button className="btn-spotify" onClick={() => { player.togglePlay() }} >
                                { is_paused ? "PLAY" : "PAUSE" }
                            </button>

                            <button className="btn-spotify" onClick={() => { player.nextTrack() }} >
                                &gt;&gt;
                            </button>
                        </div>
                    </div>
                </div>
            </>
        );
    }
}

export default WebPlayback


================================================
FILE: src/index.css
================================================
body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen',
    'Ubuntu', 'Cantarell', 'Fira Sans', 'Droid Sans', 'Helvetica Neue',
    sans-serif;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

code {
  font-family: source-code-pro, Menlo, Monaco, Consolas, 'Courier New',
    monospace;
}


================================================
FILE: src/index.js
================================================
import React from 'react';
import ReactDOM from 'react-dom';
import App from './App';
import './index.css';

ReactDOM.render(
  <React.StrictMode>
    <App />
  </React.StrictMode>,
  document.getElementById('root')
);


================================================
FILE: src/setupProxy.js
================================================
const { createProxyMiddleware } = require('http-proxy-middleware');

module.exports = function (app) {
    app.use('/auth/**', 
        createProxyMiddleware({ 
            target: 'http://localhost:5000'
        })
    );
};