Go (Golang)

Go profile

Go is often chosen for service backends where startup time, CPU utilization, and memory profile matter a lot. Teams use it to power request handlers, operators, and high throughput workers.

• Statically typed for safer large teams.
• Strong standard library and tooling.
• Built-in concurrency primitives.
• Simple deployment: compiled static binaries.

Design principles

1. Keep APIs explicit and small.
2. Use context for request-scoped metadata and cancellation.
3. Prefer simple structs and clear interfaces.
4. Measure with metrics from the first release.

Mini server snippet

package main

import (
  "encoding/json"
  "log"
  "net/http"
)

type Check struct {
  Name  string `json:"name"`
  Ready bool   `json:"ready"`
}

func main() {
  http.HandleFunc("/health", func(w http.ResponseWriter, r *http.Request) {
    json.NewEncoder(w).Encode(Check{Name: "api", Ready: true})
  })
  log.Fatal(http.ListenAndServe(":8080", nil))
}

Pitfalls

• Spawning too many goroutines with no timeout control.
• Ignoring error values for simplicity.
• Designing too much abstraction at small project stage.
• Under-testing concurrent behavior.

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