A great backend engineer selects the right communication protocol for the right job. REST APIs with net/http and Chi
In a microservices architecture, a single user request might trigger multiple database queries and external API calls. If one downstream service stalls, it can freeze the entire pipeline. Go solves this using the context package. By passing a context.Context through your function chain, you can propagate cancellations and enforce strict deadlines across your entire stack. Databases, Caching, and Migrations backend engineering with go udemy exclusive
| Category | Choice | Why Exclusive? | |----------|--------|----------------| | Router | go-chi/chi | 100% net/http compatible, better than Gin's magic | | SQL | jmoiron/sqlx | Extends stdlib, no ORM overhead | | Migrations | golang-migrate/migrate | CLI + embeddable, works with all DBs | | Validation | go-playground/validator/v10 | Struct tags, custom validators | | Config | spf13/viper | Env + file + defaults, 12-factor ready | | Tracing | open-telemetry/opentelemetry-go | Vendor-neutral, unlike Datadog-only courses | | Logging | log/slog (stdlib) | Structured, high-performance, no external deps | A great backend engineer selects the right communication
Many courses stop at go run main.go . This one continues. Go solves this using the context package
Where a typical Node.js or Java Docker image can easily take up hundreds of megabytes or gigabytes, a production Go Docker image is often . This results in incredibly fast deployment times, reduced cloud storage costs, and a significantly smaller security attack surface. Structured Logging and Tracing