Preview URL NULL? when making API call?

[cmbbar]

I just built a practice website yesterday using the Spotify API and used the preview_url to play a song preview with a button to listen to full song on spotify

now today all my API calls return NULL ONLY for the preview_url 
What gives??

Plan

Free/Premium

Country

Device

(iPhone 8, Samsung Galaxy 9, Macbook Pro late 2016)

Operating System

(iOS 10, Android Oreo, Windows 10,etc.)

My Question or Issue

[quizme]

Experiencing a similar issue. Did you find the solution?

[EdenXiao]

Mee too, No idea

[Ximzend]

Hi everyone,

I was able to replicate the issue, but only when using Client Credentials. When I switch to user authorization, I receive a preview URL.

In short: a user must be logged in to access or provide track previews.

Hope this helps!