wiremock-mapper

wiremock-mapper

DSL for setting up WireMock mappings

Installation

npm install wiremock-mapper

Configuring

import { Configuration } from 'wiremock-mapper';

Configuration.wireMockBaseUrl = 'http://localhost:8080/some_path_prefix'; // default is 'http://localhost:8080'

Creating a global mapping

Global mappings are a way to predefine part o

import { Configuration } from 'wiremock-mapper';

Configration.createGlobalMapping((request, response) => {});

Reset global mapping

import { Configration } from 'wiremock-mapper';

Configration.reset();

Create a mapping

Import the library

import { WireMockMapper } from 'wiremock-mapper';

Mappings are created with WireMockMapper.createMapping() which takes a function argument defining the mock behavior. It asyncronously sends the configuration to the WireMock server.

await WireMockMapper.createMapping((req, res) => {});

Define matching parameters

All request modifiers are set from req provided by createMapping, and return an instance of RequestBuilder, MatchBuilder, or UrlMatchBuilder. These can be chained together to form a complete request expectation.

It should read like a sentence when set up properly.

await WireMockMapper.createMapping((req, res) => {
  req.isAGet.withUrlPath.matching('/my/.*/path');
});

Interfaces

RequestBuilder

Method	Argument(s)	Effect	Returns
isAGet	none	sets request method to GET	RequestBuilder
isAPost	none	sets request method to POST	RequestBuilder
isAPut	none	sets request method to PUT	RequestBuilder
isADelete	none	sets request method to DELETE	RequestBuilder
isAHead	none	sets request method to HEAD	RequestBuilder
isAnOptions	none	sets request method to OPTIONS	RequestBuilder
isATrace	none	sets request method to TRACE	RequestBuilder
isAnyVerb	none	sets request method to ANY	RequestBuilder
withBody	none	sets request body	RequestBuilder
withBasicAuth	username: string, password: string	sets basic auth	RequestBuilder
withUrl	none	sets expected URL	UrlMatchBuilder
withUrlPath	none	sets URL path match to urlPathPattern	UrlMatchBuilder
withCookie	key: string	sets request cookie	MatchBuilder
withHeader	key: string	sets request header	MatchBuilder
withQueryParam	key: string	sets request query parameter	MatchBuilder

UrlMatchBuilder

Method	Arguments	Effect	Returns
equalTo	url: string	Matches text given	RequestBuilder
matching	regexp: string	Matches with regular expression	RequestBuilder

MatchBuilder

Method	Argument(s)	Returns
absent	none	RequestBuilder
containing	value: string	RequestBuilder
equalTo	value: string	RequestBuilder
equalToJson	json: any, ignoreArrayOrder: boolean, ignoreExtraElements: boolean	RequestBuilder
equalToXml	xml: string	RequestBuilder
macthing	value: string	RequestBuilder
matchingJsonPath	path: string	RequestBuilder
matchingXPath	xpath: string	RequestBuilder
notMatching	value: string	RequestBuilder

Define response behavior

Responses are created from res provided by WireMockMapper.createMapping()

await WireMockMapper.createMapping((req, res) => {
  res
    .withJsonBody({
      someKey: 'theValue',
      otherKey: 'otherValue'
    })
    .withStatus(200)
    .withStatusMessage('ok');
});

Interface

ResponseBuilder

Method	Argument(s)	Returns
withBody	value: string	ResponseBuilder
withDelay	milliseconds: number	ResponseBuilder
withHeader	key: string	ResponseBuilder
withJsonBody	value: object	ResponseBuilder
withStatus	statusCode: object	ResponseBuilder
withStatusMessage	statusMessage: string	ResponseBuilder
withTransformer	transformerName: string	ResponseBuilder

Example

await WireMockMapper.createMapping((req, res) => {
  req.isAGet.withUrlPath.equalTo('/my/api/path');
  res
    .withJsonBody({
      someKey: 'theValue',
      otherKey: 'otherValue'
    })
    .withStatus(200)
    .withStatusMessage('ok');
});

Get Requests Received

Get all requests

await WireMockMapper.getRequests();

Get all requests for a given stub id

await WireMockMapper.getRequests({ stubId: 'some_stub_id' });

The interface for the returned object can be found here.

Changelog

0.5.0 (2024-07-22)

Bug Fixes

• trailing slash issue (5bb6aa3)