= cowboy_req:host_info(3)

== Name

cowboy_req:host_info - Access the route's heading host segments

== Description

[source,erlang]
----
host_info(Req :: cowboy_req:req()) -> cowboy_router:tokens()
----

Return the tokens for the heading host segments.

This is the part of the host name that was matched using
the `...` notation.

== Arguments

Req::

The Req object.

== Return value

The tokens are returned as a list of case insensitive
binary strings.

== Changelog

* *2.0*: Only the tokens are returned, they are no longer wrapped in a tuple.
* *1.0*: Function introduced.

== Examples

.Get the host_info tokens
[source,erlang]
----
HostInfo = cowboy_req:host_info(Req).
----

== See also

link:man:cowboy_req(3)[cowboy_req(3)],
link:man:cowboy_req:binding(3)[cowboy_req:binding(3)],
link:man:cowboy_req:bindings(3)[cowboy_req:bindings(3)],
link:man:cowboy_req:path_info(3)[cowboy_req:path_info(3)]
