1.Starts the application in development mode using nodemon.

npm run start:dev

2.Builds the app at build, cleaning the folder first.

npm run build

3.Starts the app in production mode by first building the project with npm run build, and then executing the compiled JavaScript at build/index.js.

npm run start

First run

npm run start:dev

..from this current folder, so that we can have the data available in the /data endpoint

Then go to the frontend folder and run

npm start