In Postman I set the request method, url and the parameters like this
POST http://online-go.com/oauth2/token?username=&password=&client_id=<client_id>&client_secret=<client_secret>&grant_type=password
The application is public and Authorization Grant Type.
I am not quite sure what I did wrong here. I am receiving a 405 error code.
I don’t really understand this stuff, but I remember I was able to get Termsuji working by using Client Type: public and Authorization Grant Type: password.