This is an excellent request, as it moves beyond "how to code" into "how to architect, secure, and scale." if err := g
While Udemy courses (e.g., by Stephen Grider, Todd McLeod, or Trevor Sawler) teach the syntax of gin-gonic/gin , gorm , and jwt , a would focus on the engineering trade-offs and concurrency models specific to Go. if err := g.Wait()