The "test-httpmsg" command:

Send an HTTP message to URL and get the reply. PAYLOAD is a file containing the payload, or "-" to read payload from standard input. a POST message is sent if PAYLOAD is specified and is non-empty. If PAYLOAD is omitted or is an empty file, then a GET message is sent.

Options:

--compress

Use ZLIB compression on the payload

--mimetype TYPE

Mimetype of the payload

--out FILE

Store the reply in FILE

-v

Verbose output