This method creates or refreshes the token depending on the body of the request.

The first call to /oauth/token returns a middle token, which is used in the second /oauth/bc-authorization call. The second call to /oauth/token returns the final access_token

For creating new token required parameters are:

• grant_type
• auth_req_id
• client_id

For refreshing existing token required parameters are:

• grant_type
• refresh_token
• client_id

In order to make test integration, please use https://test-api.tbcbank.ge