Applying the Correlation ID pattern

[loinguyen-nt]

Context & Problem

In the MSA, distributed tracing is a very important part of observability, and the trace ID is often generated by the observability tools. In some cases, we want to correlate the request through the microservices, including API calls or messaging. So that the stakeholder can use it to trace the business flow.

Correlation ID pattern approaches

1. We can use trace ID as a correlation ID.
2. We can separately use trace ID and correlation ID.
   To simplify, we can go with the first option.

Goals

Make the correlation ID available the request, response, message header, log, tracing, etc...