Summary

You have learned how the trace/correlation ID is important and how it can be set up using Spring Cloud Sleuth. You can use these generated IDs to find the relevant logs and API call durations. You have integrated the Spring Boot services with the ELK stack and Zipkin.

You have also implemented extra code and configurations, which are required for enabling distributed tracing for gRPC-based services.

You have acquired the log aggregation and distributed tracing skills using Spring Cloud Sleuth, the ELK stack, and Zipkin in this chapter.

In the next chapter, you are going to learn about the fundamentals of the GraphQL API.