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= nng_http_handler_set_tree(3http)
//
// Copyright 2018 Staysail Systems, Inc. <info@staysail.tech>
// Copyright 2018 Capitar IT Group BV <info@capitar.com>
//
// This document is supplied under the terms of the MIT License, a
// copy of which should be located in the distribution where this
// file was obtained (LICENSE.txt). A copy of the license may also be
// found online at https://opensource.org/licenses/MIT.
//
== NAME
nng_http_handler_set_tree - set HTTP handler to match trees
== SYNOPSIS
[source, c]
----
#include <nng/nng.h>
#include <nng/supplemental/http/http.h>
int nng_http_handler_set_tree(nng_http_handler *handler);
----
== DESCRIPTION
The `nng_http_handler_set_tree()` function causes the _handler_ to be
matched if the Request URI sent by the client is a logical child of
the path for _handler_.
TIP: This method is useful when constructing API handlers where a single
service address (path) supports dynamically generated children.
== RETURN VALUES
This function returns 0 on success, and non-zero otherwise.
== ERRORS
`NNG_ENOMEM`:: Insufficient free memory exists.
`NNG_ENOTSUP`:: No support for HTTP in the library.
== SEE ALSO
<<nng_http_handler_alloc.3http#,nng_http_handler_alloc(3http)>>,
<<nng_http_server_add_handler.3http#,nng_http_server_add_handler(3http)>>,
<<nng_http_req_get_method.3http#,nng_http_req_get_method(3http)>>,
<<nng.7#,nng(7)>>
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