yiskang · January 15, 2020 10:15
diff --git a/OSS-Download.html b/OSS-Download.html
 <!DOCTYPE html>
 <html>
  <head>
    <title>Forge OSS object download demo</title>
    <meta name="viewport" content="width=device-width, minimum-scale=1.0, initial-scale=1, user-scalable=no" />
    <meta http-equiv="X-UA-Compatible" content="IE=edge"> 
    <meta charset="utf-8">

    <!-- The Viewer CSS -->
    <style>
      * {
        margin: 0;
        padding: 0;
      }
    </style>
  </head>

  <body>
    <a id="download">Download</div>

    <script src="//cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
    <script>
    
    $(function() {
      /**
       *
       * jquery.binarytransport.js
       *
       * @description. jQuery ajax transport for making binary data type requests.
       * @version 1.0 
       * @author Henry Algus <[email protected]>
       *
       */
      // use this transport for "binary" data type
      $.ajaxTransport("+binary", function(options, originalOptions, jqXHR) {
          // check for conditions and support for blob / arraybuffer response type
          if (window.FormData && ((options.dataType && (options.dataType == 'binary')) || (options.data && ((window.ArrayBuffer && options.data instanceof ArrayBuffer) || (window.Blob && options.data instanceof Blob))))) {
              return {
                  // create new XMLHttpRequest
                  send: function(headers, callback) {
                      // setup all variables
                      var xhr = new XMLHttpRequest(),
                          url = options.url,
                          type = options.type,
                          async = options.async || true,
                          // blob or arraybuffer. Default is blob
                          dataType = options.responseType || "blob",
                          data = options.data || null,
                          username = options.username || null,
                          password = options.password || null;

                          xhr.withCredentials = (options.withCredentials === true);

                      xhr.addEventListener('load', function() {
                          var data = {};
                          data[options.dataType] = xhr.response;
                          // make callback and send data
                          callback(xhr.status, xhr.statusText, data, xhr.getAllResponseHeaders());
                      });

                      // xhr.addEventListener('readystatechange', function() {
                      //     var data = {};
                      //     data[options.dataType] = xhr.response;
                      //     // make callback and send data
                      //     callback(xhr.status, xhr.statusText, data, xhr.getAllResponseHeaders());
                      // });

                      xhr.open(type, url, async, username, password);

                      // setup custom headers
                      for (var i in headers) {
                          xhr.setRequestHeader(i, headers[i]);
                      }

                      xhr.responseType = dataType;
                      xhr.send(data);
                  },
                  abort: function() {
                      jqXHR.abort();
                  }
              };
          }
      });

      $('a#download').click(function(event) {
        event.preventDefault();

        const filename = 'a0beb4c3-40c7-4ead-8a54-39bb2ac2d545.rvt';

        const settings = {
          crossDomain: true,
          url: 'https://developer.api.autodesk.com/oss/v2/buckets/wip.dm.prod/objects/' + filename,
          method: 'GET',
          dataType: 'binary',
          responseType: 'arraybuffer',  //!<<< change to arraybuffer. The deault values in the ajaxTransport above is blob
          processData: false,
          withCredentials: true,
          headers: {
            'Authorization': 'Bearer AccessToken',
            'Content-Type': 'application/octet-stream'
          }
        };

        $.ajax(settings).done(function (arraybuffer, textStatus, jqXHR) {
            const blob = new Blob([arraybuffer]);
            console.log(blob );
            console.log(textStatus);

          if( navigator.msSaveBlob )
            return navigator.msSaveBlob(blob, filename);

          const url = URL.createObjectURL(blob);
          const a = document.createElement('a');
          a.style = 'display: none';
          document.body.appendChild(a);

          a.href = url;
          a.download = filename;
          a.click();
          URL.revokeObjectURL(url);
        })
        .fail(function( jqXHR, textStatus, errorThrown ) {
        console.error(jqXHR, textStatus, errorThrown);
      });
      });
    });
    </script>
  </body>
 </html>
	<!DOCTYPE html>
	<html>
	<head>
	<title>Forge OSS object download demo</title>
	<meta name="viewport" content="width=device-width, minimum-scale=1.0, initial-scale=1, user-scalable=no" />
	<meta http-equiv="X-UA-Compatible" content="IE=edge">
	<meta charset="utf-8">

	<!-- The Viewer CSS -->
	<style>
	* {
	margin: 0;
	padding: 0;
	}
	</style>
	</head>

	<body>
	<a id="download">Download</div>

	<script src="//cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
	<script>

	$(function() {
	/**
	*
	* jquery.binarytransport.js
	*
	* @description. jQuery ajax transport for making binary data type requests.
	* @version 1.0
	* @author Henry Algus <[email protected]>
	*
	*/
	// use this transport for "binary" data type
	$.ajaxTransport("+binary", function(options, originalOptions, jqXHR) {
	// check for conditions and support for blob / arraybuffer response type
	if (window.FormData && ((options.dataType && (options.dataType == 'binary')) \|\| (options.data && ((window.ArrayBuffer && options.data instanceof ArrayBuffer) \|\| (window.Blob && options.data instanceof Blob))))) {
	return {
	// create new XMLHttpRequest
	send: function(headers, callback) {
	// setup all variables
	var xhr = new XMLHttpRequest(),
	url = options.url,
	type = options.type,
	async = options.async \|\| true,
	// blob or arraybuffer. Default is blob
	dataType = options.responseType \|\| "blob",
	data = options.data \|\| null,
	username = options.username \|\| null,
	password = options.password \|\| null;

	xhr.withCredentials = (options.withCredentials === true);

	xhr.addEventListener('load', function() {
	var data = {};
	data[options.dataType] = xhr.response;
	// make callback and send data
	callback(xhr.status, xhr.statusText, data, xhr.getAllResponseHeaders());
	});

	// xhr.addEventListener('readystatechange', function() {
	// var data = {};
	// data[options.dataType] = xhr.response;
	// // make callback and send data
	// callback(xhr.status, xhr.statusText, data, xhr.getAllResponseHeaders());
	// });

	xhr.open(type, url, async, username, password);

	// setup custom headers
	for (var i in headers) {
	xhr.setRequestHeader(i, headers[i]);
	}

	xhr.responseType = dataType;
	xhr.send(data);
	},
	abort: function() {
	jqXHR.abort();
	}
	};
	}
	});

	$('a#download').click(function(event) {
	event.preventDefault();

	const filename = 'a0beb4c3-40c7-4ead-8a54-39bb2ac2d545.rvt';

	const settings = {
	crossDomain: true,
	url: 'https://developer.api.autodesk.com/oss/v2/buckets/wip.dm.prod/objects/' + filename,
	method: 'GET',
	dataType: 'binary',
	responseType: 'arraybuffer', //!<<< change to arraybuffer. The deault values in the ajaxTransport above is blob
	processData: false,
	withCredentials: true,
	headers: {
	'Authorization': 'Bearer AccessToken',
	'Content-Type': 'application/octet-stream'
	}
	};

	$.ajax(settings).done(function (arraybuffer, textStatus, jqXHR) {
	const blob = new Blob([arraybuffer]);
	console.log(blob );
	console.log(textStatus);

	if( navigator.msSaveBlob )
	return navigator.msSaveBlob(blob, filename);

	const url = URL.createObjectURL(blob);
	const a = document.createElement('a');
	a.style = 'display: none';
	document.body.appendChild(a);

	a.href = url;
	a.download = filename;
	a.click();
	URL.revokeObjectURL(url);
	})
	.fail(function( jqXHR, textStatus, errorThrown ) {
	console.error(jqXHR, textStatus, errorThrown);
	});
	});
	});
	</script>
	</body>
	</html>