62 lines
1.9 KiB
Text
62 lines
1.9 KiB
Text
= nng_http_res_copy_data(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_res_copy_data - copy HTTP response body
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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_res_copy_data(nng_http_res *res, const void *body, size_t size);
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----
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== DESCRIPTION
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The `nng_http_res_copy_data()` makes a copy of _body_ (of size __size__)
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and sets the HTTP body for the response _res_ to it.
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The copy will be deallocated automatically when _res_ is freed.
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The copied body data will be automatically sent with the response when it
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is sent using xref:nng_http_conn_write_res.3http.adoc[`nng_http_conn_write_res()`].
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This also updates the relevant `Content-Length` header of _res_.
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NOTE: The current framework does not support sending data via chunked
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transfer-encoding.
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TIP: To avoid copying data, the
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xref:nng_http_res_set_data.3http.adoc[`nng_http_res_set_data()`] may be used instead.
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TIP: It is a good idea to also set the `Content-Type` header.
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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_conn_write_res.3http.adoc[nng_http_conn_write_res(3http)],
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xref:nng_http_res_alloc.3http.adoc[nng_http_res_alloc(3http)],
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xref:nng_http_res_set_data.3http.adoc[nng_http_res_set_data(3http)],
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xref:nng_http_res_set_header.3http.adoc[nng_http_res_set_header(3http)],
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xref:nng.7.adoc[nng(7)]
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