Hands-On Microservices with Kotlin

Debugging

IntelliJ IDEA provides a very powerful but simple to use the debugger that we can use to develop our microservices. If we go back to our ExampleService class, we can click on the gutter in the same line that our getHello method is and we can create a breakpoint, this will be visualized as a red dot on the gutter. Alternatively, we can use the keybinding Ctrl + F8 in Windows, command + F8 on a Mac.

Now, we can go back to the application class, click on the Kotlin icon but choose to debug instead of run. If we request again the URL http://localhost:8080/user/Kotlin, the debugger should stop the application and show our breakpoint.

When the application is stopped, we can see in the middle-bottom side of the screen, the Debugger window: ...