Record Runtime Code Flows to understand codebase and problems in-depth | AppMap

What you will learn in this hands-on session: - How to use a tool AppMap to record your runtime Spring Boot flows -- helps in understanding architecture -- helps in understand bottlenecks -- debugging flows -- execution time - How to visualize the generated recorded data - How to integrate directly in your build Key Points Discussed ---------------- = Introduction to AppMap AppMap is introduced as a tool that records and visualizes application behavior and test cases. Demonstrates its integration with Spring Boot applications and IDEs like IntelliJ. = Application Demonstration Cloning and running the Spring Pet Clinic app using Maven tests. AppMap records test executions and generates JSON data. Displays sequence diagrams and dependency graphs to show test case details. = Visualizing Application Insights Sequence Diagrams: Show endpoint invocations and response data. Trace Views: Provide detailed timelines of method calls. Flame Graphs: Highlight performance bottlenecks by displaying method execution times. = Live Application Recording Demonstrates AppMap's ability to capture runtime data of a live application. Records user interactions like adding or finding an owner in the app and generates comprehensive logs. = Integration Options AppMap can be used in CI/CD pipelines or locally via CLI. Provides options for generating visual diagrams (e.g., sequence diagrams in PlantUML format). Benefits for Teams and Debugging Helps new team members understand application workflows quickly. Aids debugging by identifying slow methods and tracing flow. 00:00 - Introduction 00:18- Demo of the AppMap tool to record JUnits runtime execution 01:39 - Visualisation of generated data (Sequence diagram, Trace, Flame, etc.) 05:44 - Record API flows in up and running application 10:00 - AppMap plugin 10:42 - Usage in build/pipeline without IDE 12:10 - Visualisation as plantuml Note: This is not a paid demonstration. I find this tool useful and meaningful myself. AppMap: https://appmap.io AppMap Client: https://appmap.io/docs/reference/appmap-client-cli.html AppMap Offline: https://appmap.io/docs/reference/appmap-airgapped-install.html AppMap Maven Plugin: https://appmap.io/docs/reference/appmap-maven-plugin.html AppMap opensource release: https://github.com/getappmap/appmap-java/releases Spring Boot Pet-clinic App: https://github.com/spring-projects/spring-petclinic