i'm trying to get access token for test some APIs like Hotels Search but Token Api Failed With Status Code: 400
code: 38187
error: "invalid_request"
error_description: "Mandatory grant_type form parameter missing"
title: "Invalid parameters"
the Payload Which i sent with the request
client_id: "y028t70JGLM431t0X..."
client_secret : "XO4Hk8X1bK..."
grant_type: "client_credentials"
That's the cURL with the headers and payload according to the authorization guide.
curl "https://test.api.amadeus.com/v1/security/oauth2/token" \
-H "Content-Type: application/x-www-form-urlencoded" \
-d "grant_type=client_credentials&client_id={client_id}&client_secret={client_secret}"