mocksrv

Mock-server

The mock-server is able to run as a stand-alone app.

Running the mock-server

Configuration

By default, the mock-server runs on http://localhost:9100. You can configure the port by modifying the package.json file:

• config.port: the mock-server will run on this port http://localhost:[config.port]/

Folder structure

• mocks: contains a folder structure that represent resource_uris

Example:

The request for

/search/api/v1/search/

will be parsed to

+ /
  + mocks
    + search
      + api
        + v1
          + search
            - index.js (a function that returns a JSON object)

Writing a mock

Based on the above example

Step 1:

Create the folder structure that represent an endpoint

Step 2:

Create an index.js file - (files named index.js will be picked up as modules by the NodeJS module manager)

Step 3:

Write the actual mock:

var equal = require('deep-equal');

module.exports = function (query, req, res) {
    return {
        a: 'a'
    };
};

where the arguments for the function are:

• query: the URL params as an object. Ex: /search/api/v1/search/?q=hsbc&sort=asc will become { q: 'hsbc', sort: 'asc' }
• req: See ExpressJS - Request
• res: See ExpressJS - Response

The above solution allows you to return different JSON objects based on different query arguments.

Example mock for /example/api/v1/search/?sort=asc (assuming that we have ascMock.json, descMock.json and filtered.json files in the same folder as the index.js is):

mocks/example/api/v1/search/index.js

var equal = require('deep-equal');

var mocks = [{
    params: { 'filter': 'mediaType:video' },
    mock: require('./filtered.json')
}, {
    params: { sort: 'asc' },
    mock: require('./ascMock.json')
}, {
    params: { sort: 'desc' },
    mock: require('./descMock.json')
}];

module.exports = function (query, req, res) {

    var filtered = mocks.filter(function(mock){
        return equal(mock.params, query);
    });

    return filtered[0].mock;
};

This mock allows for multiple different responses based on query params without having much logic. This file can be found at

!!! Very important !!!

Mocks should not contain any logic at all, so please, keep it simple!!!

Example project

Examples of creating mocks can be found in the example app mocks in mocks/example