I am trying to integrate the USPS API using the USPS API Docs. I am currently on the section "Generate OAuth tokens" which is a POST API URI. The main issue is that I want to access the Provider-Specific Token Response instead of the OAuth Standard Access Token Response. Provider-Specific Token Response provides the refresh token in the response. I have opened the Postman Collection but cannot see any options, parameters, request body parameters to access the Provider-Specific Token Response.
I am trying to integrate the USPS API using the USPS API Docs. I am currently on the section "Generate OAuth tokens" which is a POST API URI. The main issue is that I want to access the Provider-Specific Token Response instead of the OAuth Standard Access Token Response. Provider-Specific Token Response provides the refresh token in the response. I have opened the Postman Collection but cannot see any options, parameters, request body parameters to access the Provider-Specific Token Response.
Thanks and Regards.