Header parameters are HTTP headers. Headers often contain metadata information for the client, or server.

You can create custom headers, as needed. As a best practice, we recommend that you prefix the header name with X-.

HTTP/1.1 defines the headers that can appear in a HTTP response in three sections of RFC 2616: 4.5, 6.2, and 7.1. Examine these codes to determine which are appropriate for the API.