uploading files to soundcloud with ajax

soundcloud.js.coffee

  UPLOAD_ENDPOINT = 'https://api.soundcloud.com/tracks'
  access_token = $('[data-soundcloud-upload]').data('soundcloud-upload')

  $('#soundcloud-upload').change () ->
    data = new FormData()
    field = $('#soundcloud-upload')[0]

    $.each field.files, (i, file) ->
      data.append 'track[asset_data]', file
      data.append 'track[title]', file.name

    $.ajax
      url: RESOURCE_ENDPOINT
      data: data
      cache: false
      contentType: false
      processData: false
      type: 'POST'
      beforeSend: (xhr) ->
        xhr.setRequestHeader('Authorization', 'OAuth ' + access_token)
        xhr.setRequestHeader('Accept', 'application/json')
      success: (data) ->
        console.log data