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cowboy_req:has_resp_body(3)

Name

cowboy_req:has_resp_body - Is there a response body?

Description

has_resp_body(Req :: cowboy_req:req()) -> boolean()

Return whether a response body has been set.

Arguments

Req

The Req object.

Return value

A boolean indicating whether a response body has been set.

This function will return false when an empty response body has been set.

Changelog

  • 1.0: Function introduced.

Examples

Check whether a body has been set
false = cowboy_req:has_resp_body(Req0),
Req1 = cowboy_req:set_resp_body(<<"Hello!">>, Req0),
true = cowboy_req:has_resp_body(Req1),
Req = cowboy_req:set_resp_body(<<>>, Req1),
false = cowboy_req:has_resp_body(Req).

See also

cowboy_req(3), cowboy_req:set_resp_body(3)

Cowboy 2.4 Function Reference

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