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Check the MIME type of File before Upload it in Vue Uploader component

By using uploading event, you can get the file MIME type before uploading it to server. In the below sample, file MIME type is shown in the alert box before file start to upload.

Source
Preview
app.vue
<template>
  <div>
    <ejs-uploader ref="uploadObj" id='defaultfileupload' name="UploadFiles"  :autoUpload="autoUpload" :asyncSettings= "path" :uploading="onBeforeUpload"></ejs-uploader>
  </div>
</template>
<script>
import Vue from 'vue';
import { UploaderPlugin } from '@syncfusion/ej2-vue-inputs';
Vue.use(UploaderPlugin);

export default {
  data: function(){
        return {
          path:  {
            saveUrl: 'https://ej2.syncfusion.com/services/api/uploadbox/Save',
            removeUrl: 'https://ej2.syncfusion.com/services/api/uploadbox/Remove'
          },
            autoUpload: false
        }
    },
    methods: {
onBeforeUpload: function(args): void {
 // get the file MIME type
    alert("File MIME type is: " + args.fileData.rawFile.type)
}
    }
}
</script>
<style>
@import "../../node_modules/@syncfusion/ej2-base/styles/material.css";
@import "../../node_modules/@syncfusion/ej2-buttons/styles/material.css";
@import "../../node_modules/@syncfusion/ej2-vue-inputs/styles/material.css";
 #container {
        padding-left: 5%;
        width: 100%;
    }
    #loader {
        color: #008cff;
        font-family: 'Helvetica Neue','calibiri';
        font-size: 14px;
        height: 40px;
        left: 45%;
        position: absolute;
        top: 45%;
        width: 30%;
    }
</style>