Katalon Studio integrates with, a leading provider of bemock service that deliver both an exposed source version as well as a cloud version. & nbsp; & nbsp; & nbsp; & nbsp;
With, Katalon users will be able to well mimic a production API ’ s behavior for end to end testing even if the product API is not yet developed or available. These virtualized services (aka service virtualization) can so be shared and used across teams without extra exploit or maintenance.

Why is service virtualization so crucial for Katalon users?

Virtualizing a service enable Katalon exploiter:

• to make test assets even when the APIs you take aren ’ t ready or released.
• to guard against unstable 3rd party API ’ s when developing tests to cut test flakiness
• to assume edge cause and faults easily, to help with unhappy route testing.

Existent World Example

Consider there is a Banking application that control chiliad of APIs that take inputs from a web page (Customer point, Fund detail, Interest deliberation, etc.). This application communicates to external services (endpoints - & gt; SOAP/REST) and it is not the tester ’ s obligation to care about getting the test data for testing & amp; having to wait for these environments. However, APIs designed need to be tested against a set of datum (Customer details, fund details, etc.). There is a need to remove this international Network Call (addiction) and create something at the run time and imitate the network phone.

A network shout can return different status codes 404, 500, 200, 303, etc with a JSON answer. The application has to work for all such scenarios along with a different set of data for 200 response. Having a database server running to screen the API is ineffective and not a correct way to go about API testing.

That is where Mocking services come into impression.

How to Integrate Katalon with WireMock Cloud & nbsp;

To integrate Katalon Studio with WireMock Cloud, you need to follow these steps: & nbsp; & nbsp; & nbsp; & nbsp;
1. WireMock Cloud offers a costless forever edition as well as paid plans for enterprises. You will need to account to leverage WireMock with Katalon. & nbsp; & nbsp; & nbsp; & nbsp;
2. Verify the response of the WireMock API: In your Katalon test script, you need to verify the response of the WireMocked API to ensure that it meets your expectations. & nbsp; & nbsp; & nbsp; & nbsp; & nbsp;
3. You can do this by using the API testing and Verification Validation mechanism to insure the status code, header, and answer body of the HTTP response. & nbsp; & nbsp; & nbsp; & nbsp;
4. Call the WireMocked API in your exam: In your Katalon test script, you postulate to call the WireMocked API to verify the deportment of your scheme under test. You can do this by making HTTP requests using the WebUI.callRestApi method in Katalon.

Step 1:Below step shows a mock service on wiremock cloud in the settings tab: & nbsp;

Pro tip: Tools like SUSA can handle this autonomously — upload your app and get results without writing a single test script.

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Step 2:The below screenshot shows a sample API from the internet.

Step 3:There are various ways to create a mock service in WireMock Cloud & nbsp; & nbsp;

• Manually via the web UI & nbsp; & nbsp;
• Swagger or OpenAPI specification import & nbsp; & nbsp;
• Record traffic to and from another API & nbsp; & nbsp;
• Import an existing project from WireMock & nbsp; & nbsp;
• Automate via the REST API or WireMock & nbsp; & nbsp;

The below screenshot shew how to use recording in order to create a sample stub within the mock service created in wiremock. You can besides watch a 90 secondsvideo here

Step 4: Once the existent API service is record you can remark that multiple stubs are created with all the responses captured during the transcription. 
 

Step 5:Once recorded, we head over to Katalon studio and create a new web service request and hit the mock API service which was recorded utilise Wiremock Cloud:

Step 6: We now run the sampling request and observe that the responses are from the MockAPI vs the existent API service.

Step 7: We can now make an API test within Katalon and compare using verification and validation mechanism

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This is just an instance to prove how to integrate Katalon Studio with WireMock Cloud. You can qualify and expand the code as needed to meet your specific testing requirements. & nbsp; & nbsp; & nbsp; & nbsp;