post
https://api.slopepay.com/v4/auth/token
Given a authorizationCode, generate a long-lived access token to make API requests on behalf of a customer.
400Returned when improperly formatted or missing fields in request body
401Returned when improper keys or headers are used in the request
403Returned when the caller is not authorized to access the resource
404Returned when the authorizationCode is not found
500Returned when an internal server error occurs
