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Keep shoppingMastering WireMock for Effective API Testing
168 students
Mastering WireMock for Effective API Testing
Discover how to effectively test APIs in isolation by utilizing WireMock, a powerful tool to simulate API behavior
Created byRahul Singh Rathore
Last updated 6/2026
English
What you'll learn
- By the end of the course, students will be proficient in using WireMock and JUnit to create robust, high-quality tests
- Match incoming requests based on URL, headers, body content, and more
- Advanced Matching, use JSONPath, XPath, and regular expressions for complex request matching
- Static Responses: Define fixed responses for specific requests & Dynamic Response Templating: Generate dynamic responses using Handlebars templates
- Custom Matchers, Transformers & Extension API: Extend WireMock's functionality with custom extensions
- Stateful Behavior Scenarios: Define and manage stateful interactions to simulate complex workflows
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Coding Exercises
This course includes our updated coding exercises so you can practice your skills as you learn.
See a demo
Course content
24 sections • 104 lectures • 9h 54m total length
Requirements
- Basic Java Programming: Understanding of Java syntax, object-oriented programming concepts, and basic data structures.
- Integrated Development Environment (IDE): Familiarity with using an IDE like Eclipse or IntelliJ IDEA.
- Basic knowledge of build tools like Maven or Gradle for managing dependencies.
- Basic Understanding of Testing, concepts of unit testing
- Basic understanding of JSON & XML format
Description
Unlock the power of API testing with our comprehensive course, "Mastering WireMock for Effective API Testing." This course is designed to take you from the basics to advanced techniques, ensuring you can leverage WireMock to its fullest potential.
WireMock is a popular open-source tool for API mock testing. It helps create stable test and development environments, isolate from unreliable third parties, and simulate non-existent APIs.
WireMock supports creating mock APIs in code, via its REST API, as JSON files, and by recording HTTP traffic. It has a rich matching system and can dynamically generate complex responses using Handlebars-based templating. Integration is easy due to its numerous extension points and comprehensive APIs. WireMock spans across multiple programming languages and technology stacks. It can run as a library or client wrapper in many languages, or as a standalone server
Course Modules:
Introduction to WireMock: Understand what WireMock is, its use cases, and how to set it up.
Basic Stubbing and Request Matching: Learn to create simple stubs and match requests using URL, method, headers, and body.
Advanced Request Matching: Dive into JSON schema matching, form parameters, and XPath/JSONPath matchers.
Response Templating: Master basic and advanced response templating with functions and helpers.
Stateful Behavior and Scenarios: Explore defining scenarios, stateful stubs, and global state management.
Extensions and Customization: Create custom matchers and transformers, and use the Extension API.
Integration with Other Tools: Integrate WireMock with JUnit, other testing frameworks, and CI/CD pipelines.
Mocking Different Protocols: Mock HTTP/HTTPS protocols.
WireMock Cloud: Get an overview of WireMock Cloud and learn how to set it up and use it.
Who this course is for:
- API Developers: Developers who create and maintain RESTful APIs and need to test their endpoints without relying on external services.
- Test Automation Engineers: Professionals who automate tests for applications that interact with external APIs and need to simulate various scenarios.
- Integration Testers: Testers who focus on integration testing and need to mock external services to validate the interactions between different system components.