post https://fx-sandbox.remessaonline.com.br/v1/api/auth
The token generated by this endpoint will be used to authenticate all subsequent requests and is valid for 60 minutes. After this period the client application will need to generate a new token by calling this endpoint again.
Uses a basic authentication scheme, where the username is the client id and the password is the client secret provided by Remessa Online.
Example: "Authorization: Basic base64(client_id:client_secret)"