In this tutorial, I will show you way to build (Multiple) Image upload and Preview example with Web API/Rest API using Angular Material 12, FormData and Progress Bar.

Full Article: https://bezkoder.com/angular-material-12-image-upload-preview/

Overview

We will create an Angular Material 12 (Multiple) Image upload with Preview application in that user can:

• see the preview of images that will be uploaded
• see the upload process (percentage) of all uploading images
• view all uploaded images
• download image by clicking on the file name

Here are screenshots of our React App:

• Before upload:

• When Upload is done:

• List of Images Display with download Urls:

• Show status for each image upload:

Technology

• Angular 12
• RxJS 6
• Angular Material 12

Web API for Image Upload & Storage

Here are Rest APIs that we will use Axios to make HTTP requests:

You can find how to implement the Rest APIs Server at one of following posts:

• Node.js Express File Upload Rest API example
• Node.js Express File Upload to Google Cloud Storage example
• Spring Boot Multipart File upload (to static folder) example

Angular Material 12 App for Image upload with Preview

Let me explain it briefly.

• We import necessary library, components in app.module.ts.
• file-upload.service provides methods to save File and get Files from Rest Apis Server.
• upload-images.component contains upload multiple images form, preview, some progress bars, display list of images.
• app.component is the container that we embed all components.
• index.html for importing the Font and Icons.

For more steps and source code, please visit:
https://bezkoder.com/angular-material-12-image-upload-preview/

Further Reading

More Practice:

• Angular 12 + Spring Boot: File upload example
• Angular 12 + Node.js: File Upload example
• Angular 12 Login and Registration example with JWT & Web Api
• Angular 12 CRUD Application example with Web API
• Angular 12 Form Validation example (Reactive Forms)
• Using Bootstrap: Angular 12 Multiple Images Upload with Preview example

Serverless with Firebase:
Angular 12 Upload File to Firebase Storage example