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Testing REST API integrations using WireMock

Table of contents
Learn how to create a Spring Boot application that integrates with external REST APIs, then test those integrations using Testcontainers and WireMock.
Time to complete 20 minutes

In this guide, you'll learn how to:

  • Create a Spring Boot application that talks to external REST APIs
  • Test external API integrations using WireMock with both the JUnit 5 extension and the Testcontainers WireMock module

Prerequisites

  • Java 17+
  • Maven or Gradle
  • A Docker environment supported by Testcontainers
Note

If you're new to Testcontainers, visit the Testcontainers overview to learn more about Testcontainers and the benefits of using it.

Modules

  1. Create the project

    Set up a Spring Boot project with an external REST API integration using WireMock and Testcontainers.

  2. Write tests

    Test external REST API integrations using WireMock with both the JUnit 5 extension and the Testcontainers WireMock module.

  3. Run tests

    Run your Testcontainers WireMock integration tests and explore next steps.