c++ - Adding attachment to JIRA issue using the REST API and Qt with QNetworkRequest -

i'm trying add attacment existing jira issue using rest api , qt.

when run code below, reply empty array ("[]").

edit: updated code

qstring apihandler::attachfile(qstring fileloc, qstring issuekey, qstring cookie) {  //create multipart qhttpmultipart *multipart = new qhttpmultipart(qhttpmultipart::formdatatype);  qfile *file = new qfile(fileloc); //create httppart file qhttppart filepart;  filepart.setheader(qnetworkrequest::contenttypeheader, qvariant("application/octet-stream")); filepart.setheader(qnetworkrequest::contentdispositionheader, qvariant("form-data; name=\"file\"; filename=\""+ file->filename()+ "\""));    file->open(qiodevice::readonly);  filepart.setbodydevice(file);  file->setparent(multipart);  multipart->append(filepart);  qnetworkaccessmanager *mngr = new qnetworkaccessmanager();  qurl issurl(baseurl + "/api/2/issue/"+ issuekey + "/attachments");  qnetworkrequest req(issurl); qnetworkreply *reply ;  qeventloop loop;  //add headers req.setrawheader("cookie", "jsessionid = " + cookie.toutf8()); // session cookie req.setrawheader("x-atlassian-token", "nocheck"); req.setrawheader("content-type", "multipart/form-data; boundary=------------------------53a5a2cd1d9c8b7f"); //req.setrawheader("content-length", postdatasize);  reply = mngr->post(req, multipart); multipart->setparent(reply); qobject::connect(reply, signal(finished()), &loop, slot(quit()));  loop.exec();   return reply->readall();  } 

i using jira rest api documentation , qt documentation reference, , looking off of this java implementation (which i've tried replicate).

it seems i'm either missing header, or adding file incorrectly.

any appreciated!

edit - here's part of wireshark comparing example api using curl (left) , , code (right). 1 on left works, , has different mime data, i'm not sure how implement in qt

okay, figured out. might 1 on earth using (or use) qt interact jira api, posterity, here's came with:

qstring apihandler::attachfile(qstring fileloc, qstring issuekey, qstring cookie) {      qhttpmultipart *multipart = new qhttpmultipart(qhttpmultipart::formdatatype);     qhttppart filepart;     qfileinfo fileinfo(fileloc);      //what wasn't doing before!     multipart->setboundary("------------------------53a5a2cf4d9c8b7f");      filepart.setheader(qnetworkrequest::contentdispositionheader, qvariant("form-data; name=\"file\"; filename=\""+fileinfo.filename() +"\""));     filepart.setheader(qnetworkrequest::contenttypeheader, qvariant("application/octet-stream"));      qfile *file = new qfile(fileloc);     file->open(qiodevice::readonly);      filepart.setbodydevice(file);      file->setparent(multipart);     multipart->append(filepart);      qnetworkaccessmanager *mngr = new qnetworkaccessmanager();      qurl issurl(baseurl + "/api/2/issue/"+ issuekey + "/attachments");      qnetworkrequest req(issurl);     qnetworkreply *reply ;      qeventloop loop;      //add headers     req.setrawheader("x-atlassian-token", "nocheck");     req.setrawheader("cookie", "jsessionid = " + cookie.toutf8()); // session cookie     req.setrawheader("content-type", "multipart/form-data;boundary=------------------------53a5a2cf4d9c8b7f");      reply = mngr->post(req, multipart);     multipart->setparent(reply);     qobject::connect(reply, signal(finished()), &loop, slot(quit()));      loop.exec();      //read reply     qbytearray bytes=reply->readall();      //return reply json      return qstring::fromutf8(bytes.data(), bytes.size());      delete file;     delete multipart;     delete reply;     delete mngr;  } 

the key part here, , doing wrong, way in set boundary multipart. instead of setting in header, should have used:

multipart->setboundary()

which can see reflected above.

if you're coming across , going use it, i'd recommend cleaning bit, first. works!