TVML TVJS - download data from http server as binary

Question

s.borkin OP

Created Jan ’16

Replies 2

Boosts 0

Participants 2

Hello,

I'm trying to download a file from a remote server for an application written using the TVML kit.

function downloadFile(path)

{

var xmlhttp = new XMLHttpRequest();

xmlhttp.open("GET", path, false);

xmlhttp.responseType = "blob";

xmlhttp.send();

return xmlhttp.response;

}

The xmlhttp.response is IKJSBlob kind of object. I've searched Apple's TVML documentation and there is no information about it.

Does anyone familiar with a method to do it properly?

Thanks

Boost

Answer 1

eMAD OP

Jan ’16

Have you tried using arraybuffer?

xmlhttp.responseType = 'arraybuffer';

It seems to be working, I have tried it myself. After the request was completed, you'll get an object of NSConcreteMutableDataas xmlhttp.response object.

0

Answer 2

s.borkin OP

Jan ’16

And how can I convert it to a javascript array? I need to loop through the bytes, like this javascript example:

https://developer.mozilla.org/en-US/docs/Web/API/XMLHttpRequest/Sending_and_Receiving_Binary_Data

var oReq = new XMLHttpRequest();

oReq.open("GET", "/myfile.png", true);

oReq.responseType = "arraybuffer";

oReq.onload = function (oEvent)

{

     var arrayBuffer = oReq.response; // here is should be normal js array not "NSConcreteMutableData"

     if (arrayBuffer)

          var byteArray = new Uint8Array(arrayBuffer);

          for (var i = 0; i < byteArray.byteLength; i++)

};

oReq.send();

0