1<html> 2<head> 3<meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> 4<title>http::message::prepare_payload</title> 5<link rel="stylesheet" href="../../../../../../../doc/src/boostbook.css" type="text/css"> 6<meta name="generator" content="DocBook XSL Stylesheets V1.79.1"> 7<link rel="home" href="../../../index.html" title="Chapter 1. Boost.Beast"> 8<link rel="up" href="../boost__beast__http__message.html" title="http::message"> 9<link rel="prev" href="payload_size.html" title="http::message::payload_size"> 10<link rel="next" href="body.html" title="http::message::body"> 11</head> 12<body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"> 13<table cellpadding="2" width="100%"><tr> 14<td valign="top"><img alt="Boost C++ Libraries" width="277" height="86" src="../../../../../../../boost.png"></td> 15<td align="center"><a href="../../../../../../../index.html">Home</a></td> 16<td align="center"><a href="../../../../../../../libs/libraries.htm">Libraries</a></td> 17<td align="center"><a href="http://www.boost.org/users/people.html">People</a></td> 18<td align="center"><a href="http://www.boost.org/users/faq.html">FAQ</a></td> 19<td align="center"><a href="../../../../../../../more/index.htm">More</a></td> 20</tr></table> 21<hr> 22<div class="spirit-nav"> 23<a accesskey="p" href="payload_size.html"><img src="../../../../../../../doc/src/images/prev.png" alt="Prev"></a><a accesskey="u" href="../boost__beast__http__message.html"><img src="../../../../../../../doc/src/images/up.png" alt="Up"></a><a accesskey="h" href="../../../index.html"><img src="../../../../../../../doc/src/images/home.png" alt="Home"></a><a accesskey="n" href="body.html"><img src="../../../../../../../doc/src/images/next.png" alt="Next"></a> 24</div> 25<div class="section"> 26<div class="titlepage"><div><div><h5 class="title"> 27<a name="beast.ref.boost__beast__http__message.prepare_payload"></a><a class="link" href="prepare_payload.html" title="http::message::prepare_payload">http::message::prepare_payload</a> 28</h5></div></div></div> 29<p> 30 <a class="indexterm" name="idm46057532411088"></a> 31 </p> 32<p> 33 Prepare the message payload fields for the body. 34 </p> 35<h6> 36<a name="beast.ref.boost__beast__http__message.prepare_payload.h0"></a> 37 <span class="phrase"><a name="beast.ref.boost__beast__http__message.prepare_payload.synopsis"></a></span><a class="link" href="prepare_payload.html#beast.ref.boost__beast__http__message.prepare_payload.synopsis">Synopsis</a> 38 </h6> 39<pre class="programlisting"><span class="keyword">void</span> 40<span class="identifier">prepare_payload</span><span class="special">();</span> 41</pre> 42<h6> 43<a name="beast.ref.boost__beast__http__message.prepare_payload.h1"></a> 44 <span class="phrase"><a name="beast.ref.boost__beast__http__message.prepare_payload.description"></a></span><a class="link" href="prepare_payload.html#beast.ref.boost__beast__http__message.prepare_payload.description">Description</a> 45 </h6> 46<p> 47 This function will adjust the Content-Length and Transfer-Encoding field 48 values based on the properties of the body. 49 </p> 50<h6> 51<a name="beast.ref.boost__beast__http__message.prepare_payload.h2"></a> 52 <span class="phrase"><a name="beast.ref.boost__beast__http__message.prepare_payload.example"></a></span><a class="link" href="prepare_payload.html#beast.ref.boost__beast__http__message.prepare_payload.example">Example</a> 53 </h6> 54<pre class="programlisting"><span class="identifier">request</span><span class="special"><</span><span class="identifier">string_body</span><span class="special">></span> <span class="identifier">req</span><span class="special">{</span><span class="identifier">verb</span><span class="special">::</span><span class="identifier">post</span><span class="special">,</span> <span class="string">"/"</span><span class="special">};</span> 55<span class="identifier">req</span><span class="special">.</span><span class="identifier">set</span><span class="special">(</span><span class="identifier">field</span><span class="special">::</span><span class="identifier">user_agent</span><span class="special">,</span> <span class="string">"Beast"</span><span class="special">);</span> 56<span class="identifier">req</span><span class="special">.</span><span class="identifier">body</span><span class="special">()</span> <span class="special">=</span> <span class="string">"Hello, world!"</span><span class="special">;</span> 57<span class="identifier">req</span><span class="special">.</span><span class="identifier">prepare_payload</span><span class="special">();</span> 58</pre> 59</div> 60<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr> 61<td align="left"></td> 62<td align="right"><div class="copyright-footer">Copyright © 2016-2019 Vinnie 63 Falco<p> 64 Distributed under the Boost Software License, Version 1.0. (See accompanying 65 file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>) 66 </p> 67</div></td> 68</tr></table> 69<hr> 70<div class="spirit-nav"> 71<a accesskey="p" href="payload_size.html"><img src="../../../../../../../doc/src/images/prev.png" alt="Prev"></a><a accesskey="u" href="../boost__beast__http__message.html"><img src="../../../../../../../doc/src/images/up.png" alt="Up"></a><a accesskey="h" href="../../../index.html"><img src="../../../../../../../doc/src/images/home.png" alt="Home"></a><a accesskey="n" href="body.html"><img src="../../../../../../../doc/src/images/next.png" alt="Next"></a> 72</div> 73</body> 74</html> 75
