sample/query_string_params/main.cpp

#include <iostream>

#include <restinio/all.hpp>

// Create request handler.
restinio::request_handling_status_t handler( restinio::request_handle_t req )
{
    if( restinio::http_method_get() == req->header().method() )
    {
        std::ostringstream sout;
        sout << "GET request to '" << req->header().request_target() << "'\n";

        // Query params.
        const auto qp = restinio::parse_query( req->header().query() );

        if( 0 == qp.size() )
        {
            sout << "No query parameters.";
        }
        else
        {
            sout << "Query params ("<< qp.size() << "):\n";

            for( const auto p : qp )
            {
                sout << "'"<< p.first << "' => "<<  p.second << "'\n";
            }
        }

        if( qp.has( "debug" ) && qp[ "debug" ] == "true" )
        {
            std::cout << sout.str() << std::endl;
        }

        req->create_response()
            .append_header( restinio::http_field::server, "RESTinio query string params server" )
            .append_header_date_field()
            .append_header( restinio::http_field::content_type, "text/plain; charset=utf-8" )
            .set_body( sout.str() )
            .done();

        return restinio::request_accepted();
    }

    return restinio::request_rejected();
}

int main()
{
    try
    {
        restinio::run(
            restinio::on_thread_pool( std::thread::hardware_concurrency() )
                .port( 8080 )
                .address( "localhost" )
                .request_handler( handler ) );
    }
    catch( const std::exception & ex )
    {
        std::cerr << "Error: " << ex.what() << std::endl;
        return 1;
    }

    return 0;
}