SharePoint 2013 file upload with Jquery -

i developing page users able upload local machines files sharepoint 2013 server.

currently have managed experiment ajax calls , use rest api creating simple .txt files , additional folders.

the problem facing response getting when trying upload .doc file or other file using arraybuffer data.

here code (which again working data passed simple string:

url = "http://temp-sharepoint/_api/web/getfolderbyserverrelativeurl('documents')/files/add(overwrite=true,url='"+filename+"')";              jquery.ajax({                 url: url,                 type: "post",                 data: arraybuffer,                 processdata: false,                 headers: {                     "accept": "application/json; odata=verbose",                     "x-requestdigest": jquery("#__requestdigest").val(),                      "content-length": arraybuffer.bytelength                 },                success: dosuccess,                 error: onerror             }); 

the code above result in response of

[object error]{description: "the paramet...", message: "the paramet...", name: "error", number: -2147024809, stack: "error: ..."}

which "the parameter incorrect."

again if data "test" file being created no problems.

i quite new sharepoint , appreciate if can point me possible solution.

thanks.

how reading file buffer check if contains proper data while debugging using browser debugger

sample code uploading file

function uploaddocument(buffer, filename) {     var url = string.format(         "{0}/_api/web/lists/getbytitle('project documents')/rootfolder/files/add(url='{1}', overwrite=true)",         _sppagecontextinfo.webabsoluteurl, filename);     var call = jquery.ajax({         url: url,         type: "post",         data: buffer,         processdata: false,         headers: {             accept: "application/json;odata=verbose",             "x-requestdigest": jquery("#__requestdigest").val(),             "content-length": buffer.bytelength         }     });         }