I am creating a new app to verify purchse using new api by envato.I have registered a new app on build.envato.com
below is the screenshot
First of all i have made a request on :https://api.envato.com/authorization?response_type=code&client_id=[CLIENT ID]&redirect_uri=[REDIRECT URI]
after permission user goes to [REDIRECT URI] and there i have to process the code.
According to envato API, on redirect page i will have to POST e request on:
POST https://api.envato.com/token grant_type=authorization_code& code=[CODE]& client_id=[CLIENT_ID]& client_secret=[CLIENT_SECRET]
My question is : where i can find [CLIENT_SECRET] and how i make this request in php