ng-apimock-data-generator

THIS MODULE IS WORK IN PROGRESS AND STILL IN BETA. IF YOU LIKE TO CONTRIBUTE PLEASE ADD A PR

Node plugin that provides the ability to easily generate mockdata files for ng-Apimock based on a JSON or YAML template

When ng-Apimock is used multiple mockdata files need to be written to mock API-responses. This module can generate all those mockfiles out of JSON and or YAML files with the usage of default templates for responses.data and responses.headers that can ease the writing and prevent repetitive code.

Some core functionalities:

• Multiple different (to be generated) mockdata files can use the default templates for responses.data and responses.headers when they are generated from 1 single template file
• Default properties can easily be overwritten by providing a new value for the key.
• Templates can be extended in a single responses.data or responses.headers object by adding a new property.

Getting started

npm install ng-apimock-data-generator --save-dev

Usage

const mockDataGenerator = require('ng-apimock-data-generator');
 
mockDataGenerator({
    templateDir: 'path/which/holds/files/',
    outputFolder: 'path/to/save/single-files-to/'
});

Writing template mock-files

There are 2 ways to write a template for mockfiles, they will both be explained below.

Build 1 template mockdata file for multiple API's

If you want to use the strength of this module you can create 1 JSON or YAML template file that hold mockdata for all API's. Your file should hold a mockDataFiles-array with the API's as an object.

// JSON example
{
    "dataTemplates": {}, // will be explained below
    "headersTemplates": {}, // will be explained below
    "mockDataFiles":[
        {
            // API file 1
            "fileName": "name-of-the-first-file-that-needs-to-be-generated",
            // the ng-Apimock-file structure
        },
        {
            // API file 2
            "fileName": "name-of-the-second-file-that-needs-to-be-generated",
            // the ng-Apimock-file structure
        },
        {
            // ...
        }
    ]
}

# YAML example 
dataTemplates: {} # will be explained below 
headersTemplates: {} # will be explained below 
mockDataFiles:
  # API file 1 
  - fileName: name-of-the-first-file-that-needs-to-be-generated
    # the ng-Apimock-file structure 
  # API File 2 
  - fileName: name-of-the-second-file-that-needs-to-be-generated
    # the ng-Apimock-file structure 

All the API files can reuse the dataTemplates and or headersTemplates with a single property reference, see data/headers templates

Build a template mockdata file for each single API

When you want to have 1 template per API you can use the below structure

// JSON example
{
    "dataTemplates": {}, // will be explained below
    "headersTemplates": {}, // will be explained below
    "fileName": "name-of-the-file-that-needs-to-be-generated",
    // the ng-Apimock-file structure
}

# YAML example 
dataTemplates: {} # will be explained below 
headersTemplates: {} # will be explained below 
fileName: name-of-the-file-that-needs-to-be-generated
# the ng-Apimock-file structure 

data/headers templates

Each file can have an optional dataTemplates or headersTemplates object. These objects can hold multiple predefined data and headers. The template can prevent double code.

data/headers-example

In the JSON that is used by ng-Apimock you can have for example a response header-object that will be used by all API responses (or a subset of it). In the below example headers are used but it works the same for data.

"headers": {
    "Access-Control-Allow-Credentials":true,
    "Access-Control-Allow-Origin": "https://www.example.com",
    "Connection": "keep-alive",
    "Content-Type": "application/json",
    "Date": "Mon, 14 Aug 2017 08:42:49 GMT"
}

You can easily make a template out of this like for example this

"headersTemplates": {
    "default:"{
        "Access-Control-Allow-Credentials":true,
        "Access-Control-Allow-Origin": "https://www.example.com",
        "Connection": "keep-alive",
        "Content-Type": "application/json",
        "Date": "%%today%%" // Use a global for the data, see ng-Apimock readme for more info about globals
    }
}

And refer to it in the mockdata with a single property like this

{
    // ...
    responses: {
        headers: {
            "ng-apimock-headersTemplate": "default" // refer to the default headers template from above
            // Or overwrite the "Content-Type" from "application/json" to
            "Content-Type": "application/pdf",
            // Or add a new property
            "Cache-Control": "no-cache, no-store, must-revalidate"
        }
    }
}

You can refer to a template from within the data- or header-key with the following properties

// For data
"ng-apimock-dataTemplate": "name-of-the-data-template-key"
 
// For headers
"ng-apimock-headersTemplate": "name-of-the-headers-template-key"

dataTemplates or headersTemplates can be overwritten or extended.

• You can overwrite them by referring to the property and give it a new value.
• You can extend them by adding a new property to the object

For more info and examples please check the JSON or the YAML docs

ng-Apimock-file structure

The structure of a ng-Apimock-file can be found on ng-Apimock - How to write a mock file.

The difference with the mockfile from ng-Apimock is that the following property needs to be provided

"fileName": "name-of-the-file"

This property represents the name of the file that needs to be generated. No extension is needed.

If this property is not provided generating mockdata will fail.

Changelog

The Changelog can be found here

Contributing

How to contribute can be found here