Validate Image Content in ReactJS

Today we will show you how to validate image content in ReactJS. When we are working with the image upload functionality then we also need to implement the validation for the image content as well.

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Everyone knows about the image validation based on the extension but we also need to implement the validation for the image content in ReactJS.

What is image content validation?

Let’s give you an example to understand it. First, create a text file (.txt) and then change the extension of the same file from .txt to .png. After that when you upload this file then it will pass the extension validation but still, it’s invalid so we need to prevent it to upload on the server.

Way to validate image content in ReactJS

  1. Image upload in ReactJS
  2. Implement image content validation
  3. Output

1. Image upload in ReactJS

Let’s begin with the very basic example of the image upload in ReactJS. If you don’t know how to upload an image in ReactJS then go through the link below.

Image upload in ReactJS

2. Implement image content validation

We covered both validations in the below code.

Let’s combine all the code together to see how it looks.

Here, We need server support in form of API to upload image to a server. For that we have to create the file upload API in Node.js. Please refer below link if you don’t know about it.

File upload API in Node.js

App.js

3. Output

Output - Validate Image Content in ReactJS - Clue Mediator
Output – Validate Image Content in ReactJS – Clue Mediator

Thank you for the reading. Happy Coding!

Demo & Source Code

Github Repository StackBlitz Project

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