samples/EdgeService/src/main/resources/ui/js/upload.js

/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

function uploadAction() {
     var formData = new FormData(document.getElementById("upload_form"));

     $.ajax({
        type: 'POST',
        url: "/api/file-service/upload",
        data: formData,
        processData:false,
        contentType:false,
        success: function (data) {
            console.log(data);
            var error = document.getElementById("error");
            error.textContent="Upload Successfully";
            error.hidden=false;
        },
        error: function(data) {
            console.log(data);
            var error = document.getElementById("error");
            error.textContent="Upload failed";
            error.hidden=false;
        },
        async: true
    });
}

function deleteAction() {
     var fileID = document.getElementById("fileID").value;
     $.ajax({
        type: 'DELETE',
        url: "/api/file-service/delete?" + $.param({ id: fileID }),
        data: {},
        success: function (data) {
            console.log(data);
            var error = document.getElementById("error");
            error.textContent="Delete successfully";
            error.hidden=false;
        },
        error: function(data) {
            console.log(data);
            var error = document.getElementById("error");
            error.textContent="Delete failed";
            error.hidden=false;
        },
        async: true
    });
}