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= cowboy_req:resp_headers(3)

== Name

cowboy_req:resp_headers - Response headers

== Description

[source,erlang]
----
resp_headers(Req :: cowboy_req:req()) -> cowboy:http_headers()
----

Return all response headers.

== Arguments

Req::

The Req object.

== Return value

Headers are returned as a map with keys being lowercase
binary strings, and values as binary strings.

== Changelog

* *2.0*: Function introduced.

== Examples

.Get all response headers
[source,erlang]
----
Headers = cowboy_req:resp_headers(Req).
----

== See also

link:man:cowboy_req(3)[cowboy_req(3)],
link:man:cowboy_req:resp_header(3)[cowboy_req:resp_header(3)],
link:man:cowboy_req:set_resp_header(3)[cowboy_req:set_resp_header(3)],
link:man:cowboy_req:set_resp_headers(3)[cowboy_req:set_resp_headers(3)]