Salve ho la seguente request curl :

codice:
 curl -X POST --user '<CLIENT_ID>:<CLIENT_SECRET>' -H 'Content-Type: application/x-www-form-urlencoded' 'https://dispatchapi-sandbox-qa.auth.eu-west-1.amazoncognito.com/oauth2/token?grant_type=client_credentials'
come la trasformo in php ?

(ho CLIENT_ID e CLIENT_SECRET)