If the service-provider chooses to use the [HTTP Basic Auth](https://datatracker.ietf.org/doc/html/rfc7235) authentication method,
then the former must accept the Authorization header whose value follows the Basic authentication format.
More specifically, the header value will be of the form: `Authorization: Basic <credentials>` where credentials
is the Base64 encoding of username and password joined by a single colon “:” (e.g. user:pass).

### Header Parameters

- `Authorization` — Basic <base64>, required

  Pass in „Basic „ + „<client_id>:<secret_key>“ value encoded in Base64 format.
  (e.g.: `Basic ODI4Mjo3Njk3MDY0OTlmMDcwOWUyMzQ4NDU4NjNmOThiMjMxNA==`),
  where <client_id> & <secret_key> are the credentials that the service-provider hands to BOG.