Mock Json Server

Create a mock server using a json file.

Installation

To install, you need to have NodeJS and NPM installed on your system. Go to https://nodejs.org/en/, download and install one of the provided versions. Both NodeJS and NPM are included.

Install the mock-json-server package by running npm install -g mock-json-server in your terminal.

Using npm v5.6.0 or later? You can skip global installation and directly run npx mock-json-server data.json in a folder containing the below explained data.json.

Thats it!

Example

To run the server run: mock-json-server data.json This starts a server on http://localhost:8000/ you can change the port by running mock-json-server data.json --port=3000

data.json contains:

{
    "/home": {
        "get": {
            "data": [
                {"id":1,"name": "Steve"}
            ]
        },
        "post": {
            "data": [
                {"id":1,"name": "Steve French"}
            ]
        }
    }
}

A Get Request to http://localhost:8000/home will return.

    {
        "data": [
            {"id":1,"name": "Steve"}
        ]
    }

A Post Request to http://localhost:8000/home will return.

    {
        "data": [
            {"id":1,"name": "Steve French"}
        ]
    }

Docker

Mock json server is also a docker image. Run it with the command

docker run --name mock-json-server -v $(pwd)/test/data.json:/usr/src/app/data.json -p 8000:8000 ajoelpod/mock-json-server

Changing the port

Run the same command as above but with the PORT environment variable. Also change the -p to be equal to your new port.

docker run --name mock-json-server --env PORT=3000 -v $(pwd)/test/data.json:/usr/src/app/data.json -p 3000:3000 ajoelpod/mock-json-server

Just change the forwared ports

docker run --name mock-json-server -v $(pwd)/test/data.json:/usr/src/app/data.json -p 3000:8000 ajoelpod/mock-json-server

Docker Compose

Example.

version: '3'
services:
  mock-json:
    image: 'ajoelpod/mock-json-server'
    volumes:
      - ./test/data.json:/usr/src/app/data.json
    ports:
      - 8000:8000

Running Programmatically

const server = require('mock-json-server');
const app = server({
  "/home": {
    "get": {
      "data": [{ "id": 1, "name": "Steve" }]
    },
    "post": {
      "data": [{ "id": 1, "name": "Steve French" }]
    }
  },
  "/test/:id": {
    "get": {
      "data": [{ "id": 1, "name": "Steve" }]
    },
    "post": {
      "data": [{ "id": 1, "name": "Steve French" }]
    }
  }
}, 8000); // Start the server with a JSON object;


// Start the server;
app.start();

// Reload the server with new data;
app.reload({ test : true });

// Stop the server
app.stop();