= nng_http_req_set_version(3http)
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//
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// Copyright 2018 Staysail Systems, Inc. <info@staysail.tech>
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// Copyright 2018 Capitar IT Group BV <info@capitar.com>
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//
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// This document is supplied under the terms of the MIT License, a
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// copy of which should be located in the distribution where this
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// file was obtained (LICENSE.txt). A copy of the license may also be
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// found online at https://opensource.org/licenses/MIT.
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//
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== NAME
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nng_http_req_set_version - set HTTP request protocol version
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== SYNOPSIS
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[source, c]
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----
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#include <nng/nng.h>
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#include <nng/supplemental/http/http.h>
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int nng_http_req_set_version(nng_http_req *req, const char *version);
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----
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== DESCRIPTION
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The `nng_http_req_set_version()` sets the HTTP protocol version associated with
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the request _req_ to _version_.
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The _version_ must be a string containing
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a valid HTTP protocol version, such as "HTTP/1.0".
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The default value is "HTTP/1.1".
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A local copy of the _version_ is made in the request _req_.
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NOTE: No validation of the version supplied is performed.
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NOTE: The library does not contain support for versions of HTTP other than
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"HTTP/1.0" and "HTTP/1.1".
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Specifying any other version may result in unspecified behavior.
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== RETURN VALUES
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This function returns 0 on success, and non-zero otherwise.
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== ERRORS
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[horizontal]
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`NNG_ENOMEM`:: Insufficient memory to perform the operation.
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`NNG_ENOTSUP`:: No support for HTTP in the library.
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== SEE ALSO
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[.text-left]
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xref:nng_http_req_alloc.3http.adoc[nng_http_req_alloc(3http)],
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xref:nng_http_req_get_version.3http.adoc[nng_http_req_get_version(3http)],
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xref:nng.7.adoc[nng(7)]
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