REST mocks implementation sample with SoapUI

Part of five-cents demo

This topic is part of the ‘contract’ system of the Five-cents demo :

Five cents demo general schema - backend - contract

GitHubThe source code is available on GitHub, under /backends/contract folder.


Build REST mocks with SOAPUi

Our only concern, for this part of the demo, is to build a quick and dirty contract system that responds to contract requests. A great full-featured mocking tool that can be used to mock full parts of systems is Microcks, and it will be the subject of a few blogs to come up. For now, we will just stick to simple SOAPUi mocks to fulfill our needs.

You will find the SOAPUi project with our mocks under Basically it just displays JSON responses to contracts request for a given client :

SOAPUi - contract mock.png

And that’s it !

We can launch the mock service outside SOAPUi program with the help of those commands :

export SOAPUI_HOME_FOLDER="/home/cailleteau/SmartBear/SoapUI-5.4.0"
export SOAPUI_PROJECT="/media/Donnees/Users/Laurent/blog/fivecents-microservices-demo/backends/contract/soapui-mocks/contract-soapui-project.xml"

It should display :

SOAPUI_HOME_FOLDER : /home/cailleteau/SmartBear/SoapUI-5.4.0
SOAPUI_PROJECT : /media/Donnees/Users/Laurent/blog/fivecents-microservices-demo/backends/contract/soapui-mocks/contract-soapui-project.xml
= SOAPUI_HOME = /home/cailleteau/SmartBear/SoapUI-5.4.0
SoapUI 5.4.0 MockService Runner
Configuring log4j from [/home/cailleteau/SmartBear/SoapUI-5.4.0/bin/soapui-log4j.xml]
17:11:10,683 INFO [DefaultSoapUICore] initialized soapui-settings from [/home/cailleteau/soapui-settings.xml]
17:11:11,237 INFO [PluginManager] 0 plugins loaded in 1 ms
17:11:11,237 INFO [DefaultSoapUICore] All plugins loaded
17:11:11,975 INFO [WsdlProject] Loaded project from [file:/media/Donnees/Users/Laurent/blog/fivecents-microservices-demo/backends/contract/soapui-mocks/contract-soapui-project.xml]
17:11:11,981 INFO [SoapUIMockServiceRunner] Running MockService [REST MockService] in project [contract]
17:11:11,981 INFO [SoapUIMockServiceRunner] Press any key to terminate
17:11:12,111 INFO [JettyMockEngine] Started mockService [REST MockService] on port [8080] at path [/]
17:11:12,111 INFO [SoapUIMockServiceRunner] MockService started on port 8080 at path [/]
17:11:12,111 INFO [SoapUIMockServiceRunner] Started 1 runner
Press any key to terminate...

We can try a request on the mock, to fetch all contracts of client with id 0 :

curl http://localhost:8080/0/contracts

And ckeck the result :

  "car-contracts": [
      "id": 4870,
      "start-day": 28,
      "start-month": 11,
      "start-year": 2011,
      "model": "renault twingo"
  "home-contracts": [
      "id": 4871,
      "start-day": 28,
      "start-month": 11,
      "start-year": 2011}


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