javascript - Grabbing a file sent from Django on front-end -


i trying post file via http-request (something similar curl -f request). want best described following code:

def my_view(request):     string_to_return = '<?xml version="1.0" encoding="utf-8"?>...'     file_to_send = contentfile(string_to_return)     response     = httpresponse(file_to_send,'application/xml')     response['content-length']      = file_to_send.size         response['content-disposition'] = 'attachment; filename="somefile.xml"'     return response   $.get('/my_view/', function(response){     var formdata = new formdata();      // file = ??? how grab file ???     formdata.append("thefile", file);     xhr.send(formdata); });

basically, question here how grab xml file in client. in advance!

some notes

  1. i need file content generated on server-side
  2. i need file passed client-side , sent external server via http request.

okay trying download file django , upload server javascript app. haven't done before according https://developer.mozilla.org/en-us/docs/web/api/xmlhttprequest/sending_and_receiving_binary_data shouldn't difficult.

first, download binary file: 

var oreq = new xmlhttprequest(); oreq.open("get", "/my_view/", true); oreq.responsetype = "blob";  oreq.onload = function(oevent) {   var blob = oreq.response;   // ...see below step   sendblob(blob, 'http://www.example.com/other_url'); };  oreq.send();

next upload binary file other server:

function sendblob(blob, url){     var oreq = new xmlhttprequest();     oreq.open("post", url, true);     oreq.onload = function (oevent) {       // uploaded.     };      oreq.send(blob); }

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