Authenticate request

This function is used to retrieve an authentication token for all the requests done via the checkout API


Live Endpoint

Request Parameters

KeyValue TypeRequiredDescription
client_idStringYesAPI client ID
client_secretStringYesAPI client secret.
grant_typeStringYesThe grant expected by the OAuth server.
  "client_id": "JOHNDOESERVICE123",
  "client_secret": "BLXBeUyndtTTASXwTFZbgdDVKWeQnFUEHbXj",
  "grant_type": "client_credentials"
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