如何获得用户使用Spotify Web API的播放列表？

我正在开发一个项目，我希望得到在spotify上login用户的所有播放列表。 目前我可以login并查看用户信息（通过在spotify上进行演示）。 现在我想获取login的用户的播放列表，这是我卡住的地方。

这是我有的代码：

/** * This is an example of a basic node.js script that performs * the Authorization Code oAuth2 flow to authenticate against * the Spotify Accounts. * * For more information, read * https://developer.spotify.com/web-api/authorization-guide/#authorization_code_flow */ var express = require('express'); // Express web server framework var request = require('request'); // "Request" library var querystring = require('querystring'); var cookieParser = require('cookie-parser'); var client_id = '2e54c888b964418588d8c274d2b9dd5e'; // Your client id var client_secret = 'c7b15e90a3cb4891b3dbcd79ed8bcfa0'; // Your secret var redirect_uri = 'http://localhost:8888/callback'; // Your redirect uri /** * Generates a random string containing numbers and letters * @param {number} length The length of the string * @return {string} The generated string */ 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 stateKey = 'spotify_auth_state'; var app = express(); app.use(express.static(__dirname + '/public')) .use(cookieParser()); app.get('/login', function(req, res) { var state = generateRandomString(16); res.cookie(stateKey, state); // your application requests authorization var scope = 'user-read-private user-read-email'; res.redirect('https://accounts.spotify.com/authorize?' + querystring.stringify({ response_type: 'code', client_id: client_id, scope: scope, redirect_uri: redirect_uri, state: state })); }); app.get('/playlists', function(req, res) { // your application requests authorization var scope = 'playlist-read-private'; res.redirect('https://api.spotify.com/v1/me/playlists'); }); app.get('/callback', function(req, res) { // your application requests refresh and access tokens // after checking the state parameter var code = req.query.code || null; var state = req.query.state || null; var storedState = req.cookies ? req.cookies[stateKey] : null; if (state === null || state !== storedState) { res.redirect('/#' + querystring.stringify({ error: 'state_mismatch' })); } else { res.clearCookie(stateKey); var authOptions = { url: 'https://accounts.spotify.com/api/token', form: { code: code, redirect_uri: redirect_uri, grant_type: 'authorization_code' }, headers: { 'Authorization': 'Basic ' + (new Buffer(client_id + ':' + client_secret).toString('base64')) }, json: true }; request.post(authOptions, function(error, response, body) { if (!error && response.statusCode === 200) { var access_token = body.access_token, refresh_token = body.refresh_token; var options = { url: 'https://api.spotify.com/v1/me', headers: { 'Authorization': 'Bearer ' + access_token }, json: true }; // use the access token to access the Spotify Web API request.get(options, function(error, response, body) { console.log(body); }); // we can also pass the token to the browser to make requests from there res.redirect('/#' + querystring.stringify({ access_token: access_token, refresh_token: refresh_token })); } else { res.redirect('/#' + querystring.stringify({ error: 'invalid_token' })); } }); } }); app.get('/refresh_token', function(req, res) { // requesting access token from refresh token var refresh_token = req.query.refresh_token; var authOptions = { url: 'https://accounts.spotify.com/api/token', headers: { 'Authorization': 'Basic ' + (new Buffer(client_id + ':' + client_secret).toString('base64')) }, form: { grant_type: 'refresh_token', refresh_token: refresh_token }, json: true }; request.post(authOptions, function(error, response, body) { if (!error && response.statusCode === 200) { var access_token = body.access_token; res.send({ 'access_token': access_token }); } }); }); console.log('Listening on 8888'); app.listen(8888); 

与：

 app.get('/playlists', function(req, res) { // your application requests authorization var scope = 'playlist-read-private'; res.redirect('https://api.spotify.com/v1/me/playlists'); }); 

是我自己写的，但是我不知道如何让它工作。

Answer 1

Spotify API playlists端点需要身份validation令牌 。

非常原始的例子，在这些行中，你可以得到Auth Token ：

  // use the access token to access the Spotify Web API request.get(options, function(error, response, body) { console.log(body); token = access_token; }); 

然后，您的代码获取播放列表：

 var token = ''; app.get('/playlists', function(req, res) { var state = generateRandomString(16); res.cookie(stateKey, state); // your application requests authorization var scope = 'playlist-read-private'; res.redirect('https://api.spotify.com/v1/me/playlists?' + querystring.stringify({ access_token: token, token_type: 'Bearer', response_type: 'code', client_id: client_id, scope: scope, redirect_uri: redirect_uri, state: state })); }); 

首先，您访问“ http：// localhost：8888 / login ”进行validation，然后，您将进入播放列表的“ http：// localhost：8888 / playlists ”。