How to write production ready Node.js Rest API With javascript-package.json-v2

package.json

{
  "name": "user_api",
  "version": "1.0.0",
  "description": "sample rest api",
  "main": "index.js",
  "scripts": {
    "test": "echo \"Error: no test specified\" && exit 1"
  },
  "author": "Bhargav Bachina",
  "license": "ISC",
  "dependencies": {
    "express": "^4.16.4"
  }
}