it's GraphQL CRUD app on Mangodb has interface via Rest APIs.
Make sure you have Node JS.
$ git clone https://github.com/pritamkhose/graphql_mongo_crud.git
$ npm install
or
$ npm install express mongoose body-parser cors apollo-server-express --save
$ npm start
or Using nodemon
$ npm install -g nodemon
$ nodemon
Your app should now be running on localhost:3000.