How to Upload Image Using Multer in Node.js?

Rugved Bongale
Feb 3 · 4 min read
Photo by James Harrison on Unsplash

Introduction

Whenever you make a website like social media app or blog app , you will most probably have feature where you will allow user to upload images. That’s what we will build here — minimal file upload server.

What are we building?

We are going to build a simple application using node.js which is capable of uploading sinlge/multiple images to server.

Final project Structure

For reference here is the final project structure you will have after completing this article.

Final project structure

Setup

  1. First open cmd and run the following command to check if you have node installed. If you don’t have it installed follow this article to install node.js.
node -v
mkdir file-upload-app
cd file-upload-app

Lets begin with the code:

  1. Run npm init to start create package.json.
npm init -y
npm install express
npm install multer
Single image upload form of index.html
Multiple image upload form of index.html
index.html

Lets look at the entire code at once now

index.js

node index.js

Output:

Initial view:

Conclusion

So we have successfully built a website containing forms to upload single / multiple images using multer library.

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Rugved Bongale

Written by

Full stack developer

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