Can't get data from API

Hello,
i’ve setup my ClientID and Client-Secret.
When i try to do:
curl -X POST ‘https://id.twitch.tv/oauth2/token
-H ‘Content-Type: application/x-www-form-urlencoded’
-d ‘client_id=&client_secret=&grant_type=client_credentials’

I get: {“status”:403,“message”:“invalid client secret”}
ClientID and ClientSecret is correct.

Thanks for any hint.

Found the fault myself, sorry! But got an account here, sureley useful sometime :wink: