I tried to create a simple app but get an error.

[kevquinny]

I tried to create a simple app based on your basic example code  "I get this error This functionality is restricted to premium users only" even though I have a premium subscription. 

Plan

Premium Family

Country

UK

Device

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

Operating System

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

My Question or Issue

I tried to create a simple app but I get the error "This functionality is restricted to premium user" I am a premium user.

[Ximzend]

Did you get an Access Token by logging in using an Authorization Code flow? If not, that could be the problem.

[kevquinny]

Thanks Ximzend Yes all that and just refreshed again this morning with curl -X POST "https://accounts.spotify.com/api/token" \
-H "Content-Type: application/x-www-form-urlencoded" \
-d "grant_type=client_credentials&client_id=my_client_id&client_secret=my_secret_id"

[Ximzend]

I see grant_type=client_credentials. You can't use the Client Credentials flow with this endpoint. Also, you can't authenticate/login with that flow.

[kevquinny]

Thank you again, I am still struggling to work out why I get the message "restricted to premium users" when I am premium. When I look at that workflow it states "The Client Credentials flow is used in server-to-server authentication", my app runs in the browser. 

[kevquinny]

I tried that snippet of code and still get error about premium user, maybe it is because am family premium and code looking for premium individual, frustrating  

[Ximzend]

Does this webapp plays music for you when "In Browser is selected after you choose a genre and press the Generate Playlist button? https://nelson-v2.glitch.me/

Edit: added the link

[Ximzend]

Believe me, the endpoint you are trying to use requires user authentication, and that isn't supported by the Client Credentials flow.

[kevquinny]

That https://nelson-v2.glitch.me/ is kool it works great. 

[Ximzend]

That is for me a confirmation that your problem is not caused by the type of subscription you have, and is caused by the type if Authorization you chose.

[kevquinny]

I am trying to create an app that will run in the browser what type Authorization is appropriate to use. 

[Ximzend]

I recommend using the Authorization Code with PKCE Flow.

[kevquinny]

Hi Ximzend I got a good bit further with redirectUri:http://localhost:3000/callback and new flow i get the login access screen thank you. Then it fails with "

This site can’t be reached

localhost refused to connect." and screen2.png attachment

[kevquinny]

Same error on Firefox: 

Unable to connect

Firefox can’t establish a connection to the server at localhost:3000.

The site could be temporarily unavailable or too busy. Try again in a few moments.
If you are unable to load any pages, check your computer’s network connection.
If your computer or network is protected by a firewall or proxy, make sure that Firefox is permitted to access the web.

[Ximzend]

Did you run it directly in the browser without a local testing server? If that is the case, here is a tutorial on how to set it up: https://developer.mozilla.org/en-US/docs/Learn/Common_questions/Tools_and_setup/set_up_a_local_testi...

[kevquinny]

Yep I need to read a bit more, to understand how the complete end-to-end flow works.