first upload all files

Modules/Media/Resources/assets/admin/js/Uploader.js

@@ -0,0 +1,34 @@
+import Dropzone from 'dropzone';
+
+export default class {
+    constructor() {
+        Dropzone.autoDiscover = false;
+
+        this.dropzone = new Dropzone('.dropzone', {
+            url: route('admin.media.store'),
+            autoProcessQueue: true,
+            maxFilesize: FleetCart.maxFileSize,
+        });
+
+        this.dropzone.on('sending', this.sending);
+        this.dropzone.on('success', this.success);
+        this.dropzone.on('error', this.error);
+    }
+
+    sending(file, xhr) {
+        xhr.timeout = 3600000;
+
+        $('.alert-danger').remove();
+    }
+
+    success() {
+        if (this.getUploadingFiles().length === 0 && this.getQueuedFiles().length === 0) {
+            setTimeout(DataTable.reload, 1000, '#media-table .table');
+        }
+    }
+
+    error(file, response) {
+        $('.dz-progress').css('z-index', 1);
+        $(file.previewElement).find('.dz-error-message').text(response.message);
+    }
+}