Cannot authenticate to Spotify API with Node.JS app

LeRouteur — Thu, 20 Aug 2020 12:52:00 GMT

Plan

Free

Country

Programming Language

Node.JS 12.13.0

My Question or Issue

Hi,

I'm creating a bot using the Spotify API. This bot should update one of my playlist by adding a specific song.

My problem is that I cannot obtain an access token with the /authorize endpoint.

Here's my code :

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

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

    let spotifyApi = new SpotifyWebApi({
        clientId: data.spotify.client_id,
        redirectUri: data.spotify.redirect_uri
    });

    /**
     * Authenticating the app to Spotify Web API
     * @type {string[]}
     */
    let scopes = ['user-read-private', 'user-read-email', 'playlist-modify-public'],
        state = generateRandomString(16);

    // Create the authorization URL
    let authorizeURL = spotifyApi.createAuthorizeURL(scopes, state, false);

//Obtained URL -> https://accounts.spotify.com/login?continue=https%3A%2F%2Faccounts.spotify.com%2Fauthorize%3Fscope%3Duser-read-private%2Buser-read-email%2Bplaylist-modify-public%26response_type%3Dcode%26redirect_uri%3Dhttp%253A%252F%252Flocalhost%253A8888%252Fcallback%26state%3DlD3Ijyz5ucTZ9L5B%26client_id%3D516af068412341e69675da2c0f364846%26show_dialog%3Dfalse

    // Create request to the callback Express route
    https.get(authorizeURL, response => {
        if (response) {
            return console.log(response);
        }
    }).on('error', err => {
        console.error(err);
    });
}

When I process the GET request to authenticate my app (see the https.get part above) and when I check what is given in my console (output given by the return console.log(response)), I get that :

...
responseUrl: 'https://accounts.spotify.com/login?continue=https%3A%2F%2Faccounts.spotify.com%2Fauthorize%3Fscope%3Duser-read-private%2Buser-read-email%2Bplaylist-modify-public%26response_type%3Dcode%26redirect_uri%3Dhttp%253A%252F%252Flocalhost%253A8888%252Fcallback%26state%3DlD3Ijyz5ucTZ9L5B%26client_id%3D516af068412341e69675da2c0f364846%26show_dialog%3Dfalse',
...

This is the reponse URL I have. It seems that I'm not logged, thus I cannot access the Spotify Web API.

My callback route is working since I can copy/paste the authorizeUrl in a browser, and I'll get the token written in a text file. It's only when I try to process a request with https.get that it doesn't work.

Any idea ?

Thanks in advance 🙂

topic Cannot authenticate to Spotify API with Node.JS app in Spotify for Developers

Cannot authenticate to Spotify API with Node.JS app