Handler step

readme

• purpose
• sequence diagram
• how to run
• how to test
• how to deploy

Todo

• logging
• tracing
• metrics
• graceful shutdown
• liveness handler
• readyness handler
• version handler
• testable
• documents
• circuit breaker

recommendations

• don't call panic
• log.Fatal only in main.go
• goroutine only in main.go
• defer recovery everytime in goroutine
• global variables beware about race conditions

main

• read config
• initial framework by config
• initial database by config
• initial http.client by config
• initial logger by config
• initial tracer
• graceful shutdown
• liveness handler
• readyness handler
• version handler

logging requirement

• X-Request-ID
• singerton and non blocking test

framework handler

• get request
• call handler then get response & error
• return response to caller

controller (business logic)

• call dependencies then get response & error
• log all error with tracing-ID, crime-scence, course
• ?rollback

dependencies

• ?circuit breaker
• ?rollback