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Commitc106b79

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Updating HTTP Client example.
1 parent7abfd9b commitc106b79

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‎libs/network/doc/examples.rst‎

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@@ -7,10 +7,6 @@ common networking protocols. The following set of examples describe a
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series of realistic examples that use the:mod:`cpp-netlib` for these
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kinds of application.
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..todo::
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Make the examples more accessible.
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..toctree::
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:maxdepth:2
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‎libs/network/doc/http_client.rst‎

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@@ -4,24 +4,23 @@
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HTTP client
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*************
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..todo::
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Rewrite text, provide a CLI example.
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The first code example is the simplest thing you can do with the
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:mod:`cpp-netlib`. The application is a simple HTTP client, which can
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be found in the subdirectory ``libs/network/example/http_client.cpp``.
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All we are doing is creating and sending an HTTP request to a server
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and printing the response body. Without further ado, the code to do
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this is as follows:
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and printing the response body.
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The Code
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========
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Without further ado, the code to do this is as follows:
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..code-block::c++
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#include <boost/network/protocol/http/client.hpp>
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#include <iostream>
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int
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main(int argc, char *argv[]) {
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int main(int argc, char *argv[]) {
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using namespace boost::network;
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if (argc != 2) {
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return 0;
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}
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Building and Running The Code
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=============================
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To be build this example, you can follow the steps below without having to build
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the whole:mod:`cpp-netlib` distribution::
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$ cd ~/cpp-netlib
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$ g++ -o http_client1 libs/network/example/http_client1.cpp \
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> -I. \
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> -I$BOOST_ROOT \
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> -L$BOOST_ROOT/stage/lib \
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> -lboost_system \
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> -pthread
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You can then run this to get theBoost_ website::
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$ ./http_client1 http://www.boost.org/
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.. _Boost:http://www.boost.org/
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Diving into the Code
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====================
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Since this is the first example, each line will be presented and
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explained in detail.
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http::client client;
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First we create a ``client`` object. The ``client``contains all the
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First we create a ``client`` object. The ``client``abstracts all the
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connection and protocol logic. The default HTTP client is version
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1.1, as specified in `RFC 2616`_.
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#include<boost/network/protocol/http/client.hpp>
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#include<iostream>
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intmain(int argc,char * argv[]) {
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usingnamespaceboost::network;
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if (argc !=2) { std::cout <<"Usage:" << argv[0] <<" <url>" << std::endl;return1; }
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http::client client;
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http::client::requestrequest(argv[1]);
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request <<header("Connection","close");
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http::client::response response = client.get(request);
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std::cout <<body(response) << std::endl;
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return0;
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}
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