where to write this code ,Please explain me step by step

Mar 15, 2016 at 3:36 PM
where to write this code ,Please explain me step by step

include <cpprest/http_client.h>

include <cpprest/filestream.h>

using namespace utility; // Common utilities like string conversions
using namespace web; // Common features like URIs.
using namespace web::http; // Common HTTP functionality
using namespace web::http::client; // HTTP client features
using namespace concurrency::streams; // Asynchronous streams

int main(int argc, char* argv[])
{
auto fileStream = std::make_shared<ostream>();

// Open stream to output file.
pplx::task<void> requestTask = fstream::open_ostream(U("results.html")).then([=](ostream outFile)
{
    *fileStream = outFile;

    // Create http_client to send the request.
    http_client client(U("http://www.bing.com/"));

    // Build request URI and start the request.
    uri_builder builder(U("/search"));
    builder.append_query(U("q"), U("Casablanca CodePlex"));
    return client.request(methods::GET, builder.to_string());
})

// Handle response headers arriving.
.then([=](http_response response)
{
    printf("Received response status code:%u\n", response.status_code());

    // Write response body into the file.
    return response.body().read_to_end(fileStream->streambuf());
})

// Close the file stream.
.then([=](size_t)
{
    return fileStream->close();
});

// Wait for all the outstanding I/O to complete and handle any exceptions
try
{
    requestTask.wait();
}
catch (const std::exception &e)
{
    printf("Error exception:%s\n", e.what());
}

return 0;
}
Aug 17, 2016 at 3:06 PM
Make a c++ win32 project in visual studio Enterprise 2012 or above, install Casablanca package in your project, add a source file, copy paste this code there, it will build and run fine.
Hope this will help