drogon/examples/simple_example/api_Attachment.cc

#include "api_Attachment.h"
using namespace api;
//add definition of your processing function here
void Attachment::get(const HttpRequestPtr& req,
                     const std::function<void (const HttpResponsePtr &)>&callback)
{
    auto resp=HttpResponse::newHttpViewResponse("FileUpload",HttpViewData());
    callback(resp);
}

void Attachment::upload(const HttpRequestPtr& req,
                        const std::function<void (const HttpResponsePtr &)>&callback)
{
    FileUpload fileUpload;
    fileUpload.parse(req);
    auto files=fileUpload.getFiles();
    for(auto file:files)
    {
        LOG_DEBUG<<"file:"
                 <<file.getFileName()
                 <<"(len="
                 <<file.fileLength()
                 <<",md5="
                 <<file.getMd5()
                 <<")";
        file.save("./");
    }
    auto resp=HttpResponse::newHttpResponse();
    resp->setStatusCode(HttpResponse::k200OK);
    callback(resp);
}