How to create mock API

  
  1) Create a folder on Desktop or Any other place ex. users-api-server
  
  2) Open Terminal and Go to the folder directory . ex. cd /Users/apple/Desktop/users-api-server
  
  3) Init npm . " npm init -y "
  
  4) Install JSON-SERVER. "npm i -g json-server"
  
  5) Create "package.json" file into folder. ex users-api-server/package.json
  
  {
  "name": "users-api-server",
  "version": "1.0.0",
  "description": "",
  "main": "index.js",
  "scripts": {
    "test": "echo \"Error: no test specified\" && exit 1"
    “json:server”:”json-server — watch db.json”
  },
  "keywords": [],
  "author": "",
  "license": "ISC",
  "dependencies": {
    "json-server": "^0.16.3"
  }

}
  
  
  6) Create "users.json" file into flder. ex users-api-server/users.json
  
  
  {
  "users": [
    {
      "id": 1,
      "first_name": "Robert",
      "last_name": "Schwartz",
      "email": "rob23@gmail.com"
    },
    {
      "id": 2,
      "first_name": "Lucy",
      "last_name": "Ballmer",
      "email": "lucyb56@gmail.com"
    },
    {
      "id": 3,
      "first_name": "Anna",
      "last_name": "Smith",
      "email": "annasmith23@gmail.com"
    },
    {
      "id": 4,
      "first_name": "Robert",
      "last_name": "Brown",
      "email": "bobbrown432@yahoo.com"
    },
    {
      "id": 5,
      "first_name": "Roger",
      "last_name": "Bacon",
      "email": "rogerbacon12@yahoo.com"
    }
  ]
}
  
 
   users-api-server folder should be look like following way
  
  
7) Then start server. Go to the users-api-server folder on terminAL ex. cd /Users/apple/Desktop/users-api-server The "json-server --watch users.json ". Then mock api server will start output like below
Demo through POSTMAN
Demo through IDE ( IntelliJ )
If you are not start json server and try to execute api . Then you will get following error