mockettaro

Instant Server for JSON and XML Mocks with support for REST structure, VERB specific or generic file mapping, schema for request validation and .config.yml files to specify response delay, HTTP status code and headers; supporting xml/json automatic conversion driven by Accept header

Upgrade warning

• Config files .code and .delay are no longer supported by 2.0.0, please use .config.yml files
• No default root resource. Read documentation below on upgrade from 1.3.1
• Major implementation changes. Read documentation below on upgrade from 1.2.2

Supported files for mocks

• .json => resource
• .xml => resource
• .txt => resource
• .config.yml => yaml config for custom status, delay and headers
• .schema.json => request validator

Supported responses

• JSON => Default
• XML => "Accept": "application/xml"
• TXT => "Accept": "text/plain"

Supported config (.config.yml)

• status numeric
• delay numeric
• headers List of Key/Value

Installation

Global

npm

npm i mockettaro -g

yarn

yarn global add mockettaro

Project dependency

npm

npm i mockettaro --save-dev

yarn

yarn add mockettaro --dev

Getting Started

Command line

mockettaro

It will serve the current working directory tree as a REST API (matching JSON files) on http://localhost:8080/

Nodejs Express

const express = require("express");
const { mockettaro } = require("mockettaro");
const logger = require("@marketto/js-logger").global();

const app = express();
app.use(
	"/mocks",
	mockettaro({
		//foldername to seek for folderTree / json or xml files
		directory: "mocks", //default: './'
		//Current working directory to use as a targed for the given directory
		cwd: __dirname, //default: process.cwd()
		responseDelay: 1000, //default: 0
		cacheLifetime: 1000, //default: 3000
		verbose: false, //default
		errors: true, //default
		info: true, //default
	})
);

const port = 3000;
app.listen(port, () => {
	logger.info(`Mockettaro test server running on  port ${port}`);
});

Command line overview

Version

Display the current Mockettaro version

mockettaro -v

Port number

Mockettaro server will listen on the provided port

mockettaro -p 1234

URI Resource root path

Mockettaro will serve resources, using the provided path as the root

mockettaro -r my-mock/resource

Folder for static files

Mockettaro will load resources, matching the resource entry URI, fetching the provided local path

mockettaro -f ./mocks/rest

Delay in ms to provide responses

Mockettaro will serve resources waiting the delay ms before providing each positive response

mockettaro -d 1500

Cache Lifetime in ms

Mockettaro will cache HTTP codes and response bodies for the provided cache lifetime ms

mockettaro -t 30000

Silent

Disable all logs except errors

mockettaro -s

Verbose

Display all levels log messages

mockettaro --verbose

Managing Mocks

GUI - ServiceDesigner

To quickly design your RESTful services mocks/json schemas you can use MK Service Designer, available also on GitHub, and export a Mockettaro package which would be ready to use.

Online Service Designer Once extracted, from the package folder, run from the command line:

mockettaro

Hello World

Create a folder with a file named test.GET.json which contains the following:

{
	"message": "Hello world!"
}

From the command line run:

mockettaro

try to visit http://localhost:8080/test

RESTful services Mocks

Consider you have a /customer API which provide a list @ /customer and details @ /customer/{uid} In your Mock folder (anywhere) create the following folder structure:

/
├── customer
│   ├── foo.GET.json
│   ├── foo.GET.delay
│   ├── default.PUT.schema.json
│   ├── default.PUT.json
│   ├── foo.DELETE.config.yml
│   └── default.GET.json
├── customer.POST.schema.json
├── customer.POST.json
├── customer.POST.config.yml
└── customer.GET.json

customer.GET.json

{
	"data": [
		{
			"uid": "foo",
			"name": "Bar Foo"
		},
		{
			"uid": "smith",
			"name": "John Smith"
		}
	]
}

customer/foo.GET.json

{
	"data": {
		"uid": "foo",
		"name": "Bar Foo"
	}
}

customer/foo.GET.delay

Delay in milliseconds for the matching resource

500

customer/default.GET.json

{
	"data": {
		"uid": "smith",
		"name": "John Smith"
	}
}

customer/foo.PUT.json

{}

customer/default.PUT.schema.json

All PUT request to /customer/xxxx will be validated against it!

{
	"$schema": "http://json-schema.org/schema#",
	"properties": {
		"firstName": {
			"type": "string",
			"minLength": 3
		},
		"lastName": {
			"type": "string",
			"minLength": 3
		},
		"birthDate": {
			"type": "string",
			"minLength": 10,
			"format": "date-time"
		},
		"gender": {
			"type": "string",
			"enum": ["M", "F"]
		}
	},
	"title": "customer/{uid}"
}

customer/foo.DELETE.config.yml

Config to return custom code and/or delay and/or headers in response for the matching resource

status: 204
#delay: 0
headers:
  test-header: Mockettaro

customer.POST.schema.json

All POST request to /customer will be validated against it!

{
	"$schema": "http://json-schema.org/schema#",
	"properties": {
		"firstName": {
			"type": "string",
			"minLength": 3
		},
		"lastName": {
			"type": "string",
			"minLength": 3
		},
		"birthDate": {
			"type": "string",
			"minLength": 10,
			"format": "date-time"
		},
		"gender": {
			"type": "string",
			"enum": ["M", "F"]
		}
	},
	"required": ["firstName", "lastName"],
	"title": "customer"
}

customer.POST.config.yml

All POST request to /customer , if passing validation, will have a response with the provided HTTP status code

status: 201 # Response status code
#delay: 0 # Response delay in ms
#headers: # list of headers
#   test-header: Mockettaro # custom header

customer.POST.json

All POST request to /customer , if passing validation, will have a response with the following HTTP body

{
	"uid": "newCustomer"
}

Run mock server

Global

mockettaro -r services

NPX

npx mockettaro -r services

URL to test

• http://localhost:8080/services/customer GET, POST
• http://localhost:8080/services/customer/foo GET, PUT, DELETE
• http://localhost:8080/services/customer/smith GET, PUT
• http://localhost:8080/services/customer/anything GET, PUT

Changelog

2.1.2

• Added default Access-Control-Allow-Headers and Access-Control-Allow-Methods Headers to *

2.1.1

• Added default Access-Control-Allow-Origin Header to *

2.1.0

• Added support for txt (text/plain) files

2.0.0

• Introduced config.yml files for custom settings
• Added support for custom HTTP status code in config.yml files
• Added support for custom responde delay in config.yml files
• Added support for custom headers in config.yml files
• Removed support for .code files
• Removed support for .delay files

1.4.4

• Fixed min port number: 80
• Increased test coverage over classes (error handling focused)

1.4.3

• Fixed delay parameter bug
• Fixed resource delay cache bug
• Package json scripts now use npx
• Tests and coverage use only nyc and mocha
• Mocha and Nyc config/parameters moved to test/mocha.opts and .nycrc.json
• jsdoc comments review
• Increased test coverage over classes (error handling focused)

1.4.2

• Improved performance implementing iterators
• Implemented xml support for mocks
• Implemented dynamic response conversion to json or xml depending on request Accept type (JSON default)
• Improved unit tests to ensure they are independent from others

1.4.1

• Sonar config to exclude docs from coverage

1.4.0

• Docs

1.3.12

• Used standard paths for bin and lib
• Fixed default params for MockettaroProgram
• Divided tests per class
• Added bin Unit
• Added separate unit test to prevent cache test issues

1.3.11

• Minor fixes
• Completed jsdoc

1.3.10

• Fixed missing args for MockettaroProgram

1.3.9

• Fixed typo in dependency

1.3.8

• Arg Number Parser moved as static method
• Added more tests
• Removed deprecated code

1.3.7

• Implemented MockettaroProgram.parser and MIN, MAX and DEFAULT constants
• Implemented MockettaroProgram.parser tests for parsing and setting MIN, MAX or DEFAULTS

1.3.6

• Fixed Resource RegExp
• Path and resource RegExps moved as static property in MockettaroProgram
• Added unit tests for Path and Resource regexps
• Added test for corrupted json mock reading

1.3.5

• Fully migrated to ES6
• Command line logics moved to MockettaroProgram class
• MockettaroProgram covered by tests
• Added -s / --silent and --verbose for silent and verbose mode

1.3.4

• Fixed Error Handler
• Mockettaro core refactored as an ES6 Class
• Fixed working directory issue
• Implemented cwd in mockettaro
• Updated test and debug config to pass cwd

1.3.3

• Removed all unused dependencies
• Removed logger and chalk dependency
• Used @marketto/js-logger to log event on console
• Removed 'use strict' since it's moving to ES6

1.3.2

• Log info on missing and found json
• Fixed compatibility issues with Windows
• Updated example expressUse.json implementation
• Added launch.json for development purpose

1.3.1

• Info logger level is true bny default
• Warning logger level is on for debbugging purpose
• Improved compatibility with trailing slash api

1.3.0

• Core reworked in classes ES6
• Command Line property -f --folder added
• Removed server method, import the lib as { mockettaro } and use it like mockettaro()
• Mockettaro router accept only an object of optional params in input {directory, responseDelay, cacheLifetime, verbose, errors }
• Provided logger micro-logging embedded utility

LICENSE

MIT License

AUTHOR

Marco Ricupero