Building APIs with GraphQL, NodeJs, and Mongoose

Getting Setup

First of all, we need to create package.json file to install dependencies. Open your terminal and run this command. It will automatically create a package.json file for you.

npm init --yes

Installing dependencies

I am going to use the express framework to build our APIs. Express provides another express-graphql package to work with GraphQL. We are going to use Mongoose ODM to interact with MongoDB database. graphql-tools allows you to create the graphql schema.

npm install --save express express-graphql graphql-tools mongoose

Installing dev-dependencies

I am going to use ES6 in this article. We need a babel to transpile our ES6 code to ES5. Let me show you how to setup babel in NodeJs project

npm install --save-dev babel-cli babel-preset-env babel-preset-stage-0

Now you need to create a new start script in the package.json file to run the nodejs server. I am going to use nodemon to run my nodejs application. index.js will be the root/entry file in our project.

"start": "nodemon ./index.js --exec babel-node -e js"

Final look at Package.json

{
    "name": "gql-api",
    "version": "1.0.0",
    "description": "",
    "main": "index.js",
    "scripts": {
        "start": "nodemon ./index.js --exec…