Spotify Community

Rognigrine · 2023-06-12

Plan

Premium

Operating System

(Windows 10,etc.)

My Question or Issue

I'm trying to obtain an access token for my app. This is the type of cURL request I use to do it:

curl -X POST "https://accounts.spotify.com/api/token" \ -H "Content-Type: application/x-www-form-urlencoded" \-H "Content-length: <content-length>" \-d "grant_type=client_credentials&client_id=your-client-id&client_secret=your-client-secret"

This is the error I get:
<html><head>
<meta http-equiv="content-type" content="text/html;charset=utf-8">
<title>411 Length Required</title>
</head>
<body text=#000000 bgcolor=#ffffff>
<h1>Error: Length Required</h1>
<h2>POST requests require a <code>Content-length</code> header.</h2>
<h2></h2>
</body></html>
curl: (3) URL using bad/illegal format or missing URL
curl: (3) URL using bad/illegal format or missing URL
curl: (3) URL using bad/illegal format or missing URL
curl: (3) URL using bad/illegal format or missing URL

These are the details of the version of cURL I'm using:

curl 8.0.1 (Windows) libcurl/8.0.1 Schannel WinIDN
Release-Date: 2023-03-20
Protocols: dict file ftp ftps http https imap imaps pop3 pop3s smtp smtps telnet tftp
Features: AsynchDNS HSTS HTTPS-proxy IDN IPv6 Kerberos Largefile NTLM SPNEGO SSL SSPI threadsafe Unicode UnixSockets

Please tell me what I'm doing wrong and how to fix this.

Ximzend · 2023-06-12

You are using an unnecessary "Content-length" header.

https://developer.spotify.com/documentation/web-api/tutorials/getting-started#request-an-access-toke...

XimzendRising Star

Help others find this answer and click "Accept as Solution".

If you appreciate my answer, maybe give me a Like.

Note: I'm not a Spotify employee.

Rognigrine · 2023-06-15

I tried it before without the "context-length", as per the instructions in https://developer.spotify.com/documentation/web-api/tutorials/getting-started#request-an-access-toke..., But I was met with the error:

<html><head> <meta http-equiv="content-type" content="text/html;charset=utf-8"> <title>411 Length Required</title> </head> <body text=#000000 bgcolor=#ffffff> <h1>Error: Length Required</h1> <h2>POST requests require a <code>Content-length</code> header.</h2> <h2></h2> </body></html> curl: (3) URL using bad/illegal format or missing URL curl: (3) URL using bad/illegal format or missing URL curl: (3) URL using bad/illegal format or missing URL curl: (3) URL using bad/illegal format or missing URL

It was because of this error that I tried adding the "content-length" header.

Ximzend · 2023-06-15

I don't know what you are doing different, but the following does work for me (I have changed some characters of my IDs before posting):

curl -X POST "https://accounts.spotify.com/api/token" -H "Content-Type: application/x-www-form-urlencoded" -d "grant_type=client_credentials&client_id=d61ffce7fef1327eb07b0d50c2ef1362&client_secret=1d9930fa93524cdd7adfa2119f579f1f"

XimzendRising Star

Help others find this answer and click "Accept as Solution".

If you appreciate my answer, maybe give me a Like.

Note: I'm not a Spotify employee.

Spotify Community

Help categories

Account & Payment

Using Spotify

Listen Everywhere

Can't get access token for my app

Can't get access token for my app

Suggested posts

Let's introduce ourselves!

Help Wizard

Step 1

Just quickly...

FAQs

Ongoing Issues

Help categories

Account & Payment

Using Spotify

Listen Everywhere

Can't get access token for my app

Can't get access token for my app

Suggested posts

Let's introduce ourselves!