Post attachment to Jira using REST API in c# -

i have problem. when want post attachment jira using rest api have web exception 404 code (not found). method takes cookiecontainer authenticate user. code:

 httpwebresponse response;         string path = "c:\\users\\xxxx\\documents\\nowy.txt";         var boundary = string.format("----------{0:n}", guid.newguid());         request.cookiecontainer = new cookiecontainer();         foreach (cookie c in responsecookies)             request.cookiecontainer.add(c);         request.contenttype = string.format("multipart/form-data; boundary={0}", boundary);         request.method = "post";         request.headers.add("x-atlassian-token: nocheck file=@my_file.txt");         request.headers.add("charset", "utf-8");         request.keepalive = false;           var filecontent = file.readallbytes(path);          request.protocolversion = httpversion.version10;         using(var streamwriter = new streamwriter(request.getrequeststream()))         {             streamwriter.write(filecontent);         }           response = request.getresponse() httpwebresponse;         stream s = response.getresponsestream(); 

i used many support, resolved problem. have idea?

edit 1

now jira returns 200 code attachment not added.. can tell me what's wrong in code?

public void addatachment(cookiecollection responsecookies)     {         request.cookiecontainer = new cookiecontainer();         foreach (cookie c in responsecookies)             request.cookiecontainer.add(c);         console.write(request.requesturi);         httpwebresponse response;         string fileurl = @"c:\users\xxxx\documents\nowy.txt";         var boundary = string.format("----------{0:n}", guid.newguid());           request.contenttype = string.format("multipart/form-data; boundary={0}", boundary);         request.method = "post";         request.headers.add("x-atlassian-token", "nocheck");          memorystream postdatastream = new memorystream();         streamwriter postdatawriter = new streamwriter(postdatastream);          postdatawriter.write("\r\n--" + boundary + "\r\n");         postdatawriter.write("content-disposition: form-data;"                     + "@file=\"{0}\";"                     + "filename=\"{1}\""                     + "\r\ncontent-type: {2}\r\n\r\n",                     "myfile",                     path.getfilename(fileurl),                     path.getextension(fileurl));         postdatawriter.flush();          filestream filestream = new filestream(fileurl, filemode.open, fileaccess.read);         byte[] buffer = new byte[1024];         int bytesread = 0;         while ((bytesread = filestream.read(buffer, 0, buffer.length)) != 0)         {             postdatastream.write(buffer, 0, bytesread);         }          filestream.close();          postdatawriter.write("\r\n--" + boundary + "--\r\n");         postdatawriter.flush();          request.contentlength = postdatastream.length;          using (stream s = request.getrequeststream())         {             postdatastream.writeto(s);         }          postdatastream.close();          response = request.getresponse() httpwebresponse;         streamreader responsereader = new streamreader(response.getresponsestream());         string reply = responsereader.readtoend();         console.write(reply);     } 

possible duplicate of how post attachment jira using rest api?.

from can see, problem in content-disposition header. rfc-1867 expects form-data name "file" , nothing else. more details, @ post on atlassian forums: https://answers.atlassian.com/questions/104822/jira-rest-api-attachment-incoherent-result.

you may take @ answer provided on duplicate post: https://stackoverflow.com/a/18489214/424059