JsonMocker - An extendable tool to generate mock json data.

Usage

Node.js

1) Quick demo

var mocker = require('json-mocker');

var mockdata = mock.build({
  count: 50,
  index: 1000,
  template: {
    name: {
      first: 'firstName()',
      last: 'lastName()'
    },
    address: {
      street: 'street()',
      city: 'city()',
      state: 'state()'
    }
  }
});

//More examples in the examples directory

2) Extend the library with a custom method using provider

var mocker = require('json-mocker');

mocker.provider.add({
  type: 'quality',
  data: ['learned', 'hardworking', 'careless', 'casual', 'professional']
});

jsonMocker.provider.add({
  type: 'color',
  data: [{"_id":"c001","name":"red","hex":"#f00"},{"_id":"c002","name":"green","hex":"#0f0"},{"_id":"c003","name":"blue","hex":"#00f"},{"_id":"c004","name":"cyan","hex":"#0ff"},{"_id":"c005","name":"magenta","hex":"#f0f"},{"_id":"c006","name":"yellow","hex":"#ff0"},{"_id":"c007","name":"black","hex":"#000"}]
});

var mockdata = mock.build({
  count: 50,
  index: 250,
  template: {
    name: 'firstName()',
    quality: 'quality()',
    color: 'color()',
    desc: function () {
      return 'firstName() has ' + this.quality() + ' quality. His/Her favorite color is: ' + this.util.getValueById('color', this.color()).name + '.';
    }
  }
});

3) Direct invocation of data service methods.

var jsonMocker = require('../');

var dataItem = jsonMocker.dataItem(20);

console.log(dataItem.index());
console.log(dataItem.email());
console.log(dataItem.company());
console.log(dataItem.salary());


for (var i = 0; i < 10; i++) {
  dataItem = jsonMocker.dataItem(i);
  console.log(JSON.stringify({
    id: dataItem.index(),
    name: dataItem.firstName() + ' ' + dataItem.lastName(),
    gender: dataItem.gender(),
    ratings: dataItem.ratings(),
  }, null, 2));
}

API - base methods

JsonMocker.build

JsonMocker.provider.add

API - data service methods

method | Usage | Description | Returns same value * | --- | --- | --- | --- | index|index()|Index of current data item. It's starting number can be specified at root level using property index|true| boolean|boolean()|Random boolean value - true or false|true| date|date(fromYear, toYear, momentFormat)|fromYear and toYear should be a four-digit integer. The date format can be given in MomentJs formats (http://momentjs.com/docs/#/displaying/)|false| integer|integer(topLimit)|topLimit should be a integer. The random integer returned by this method, will be less than topLimit.|false| gender|gender()|The tool sets a random gender for each data item.|true| firstName|firstName()|Returns a random first name based on the set gender by gender()|true| lastName|lastName()|Returns a random last name based on the set gender by gender()|true| email|email()|Returns email based on firstName, lastName and company name|true| street|street()|Returns a address with 3 parts - number, street part 1 and street part 2|true| city|city()|Returns a random US city. It belongs to the same state return by state()|true| state|state()|Returns a random US state.|true| company|company()|Returns a random company name.|true| phone|phone()|Returns a 10 digit number|true| lorem|lorem(format)|The format parameter should be a combination of integer (for count) and any one of the letter 'w', 's' or 'p' (for words, sentences and paragraphs respectively). Examples: '10s', '38w', '5p'. If not mentioned, count will default to 10 and text type default to words.|false| sibling|sibling()|This returns one index value other than the current value. This can be used to create relationship among the data items|false| siblings|siblings(max, noEmptyList)|This returns a list of index values excluding the current value. This can be used to create relationship among the data items. The number of values in the list is random with max argument as upper limit.|false|

(*) - Returns same value for every use in a template.