Nestjs file uploading example demonstrating how to upload single and multiple files over an HTTP endpoint. For an in-depth explanation of the application and the basic Nestjs concepts, you can follow this article.

• NodeJS

First, you need to install all the needed dependencies.

$ npm install

After installing the dependencies, you can run the application using one of the following commands.

# development
$ npm run start

# watch mode
$ npm run start:dev

# production mode
$ npm run start:prod

Once the server has started successfully, you can start sending HTTP requests to the three endpoints:

• GET request - localhost:3000/:imgpath - Get an uploaded image
• POST request - localhost:3000 - Upload a single image
• POST request - localhost:3000/multiple - Upload multiple images at a time