= nng_http_conn_read_req(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_conn_read_req - read HTTP request
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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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void nng_http_conn_read_req(nng_http_conn *conn, nng_http_req *req,
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nng_aio *aio);
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----
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== DESCRIPTION
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The `nng_http_conn_read_req()` function starts an asynchronous read from the
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HTTP connection _conn_, reading an HTTP request into the _req_, including all
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of the related headers.
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NOTE: Any HTTP entity/body data associated with the request is *not* read
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automatically.
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The caller should use
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xref:nng_http_conn_read_all.3http.adoc[`nng_http_conn_read_all()`]
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to read the entity data, based on the details of the request itself.
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This function returns immediately, with no return value.
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Completion of the operation is signaled via the _aio_, and the final result
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may be obtained via xref:nng_aio_result.3.adoc[`nng_aio_result()`].
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That result will either be zero or an error code.
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== RETURN VALUES
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None.
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== ERRORS
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[horizontal]
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`NNG_ECANCELED`:: The operation was canceled.
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`NNG_ECLOSED`:: The connection was closed.
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`NNG_ECONNRESET`:: The peer closed the connection.
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`NNG_ENOMEM`:: Insufficient free memory to perform the operation.
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`NNG_ENOTSUP`:: HTTP operations are not supported.
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`NNG_ETIMEDOUT`:: Timeout waiting for data from the connection.
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== SEE ALSO
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[.text-left]
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xref:nng_aio_alloc.3.adoc[nng_aio_alloc(3)],
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xref:nng_aio_result.3.adoc[nng_aio_result(3)],
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xref:nng_strerror.3.adoc[nng_strerror(3)],
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xref:nng_http_client_connect.3http.adoc[nng_http_client_connect(3http)],
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xref:nng_http_conn_read_all.3http.adoc[nng_http_conn_read_all(3http)],
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xref:nng.7.adoc[nng(7)]
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