How to understand large Golang codebase

• Check go.mod and go.sum. These files contain dependecies and module version

• Understand the folder structure.

• Understand common directories like
  cmd/: entry points
  pkg/: reusable packages
  api/ models/ services/

• Trace execution flow: start from main.go and then follow initialisatio
  logic, dependency injection if used, routing,

• Read tests like _test.go

• Use tools like sourcegraph to visualize dependencies.