Интернет-магазин: Go, PostgreSQL 17 SSL, Caddy, Docker Compose

Co-authored-by: Cursor <cursoragent@cursor.com>

internal/config/config.go

@@ -0,0 +1,48 @@
+package config
+
+import (
+	"fmt"
+	"os"
+	"strconv"
+	"time"
+)
+
+type Config struct {
+	HTTPAddr     string
+	DatabaseURL  string
+	ReadTimeout  time.Duration
+	WriteTimeout time.Duration
+}
+
+func Load() (Config, error) {
+	port := env("APP_PORT", "8080")
+	cfg := Config{
+		HTTPAddr:     ":" + port,
+		DatabaseURL:  os.Getenv("DATABASE_URL"),
+		ReadTimeout:  durationEnv("HTTP_READ_TIMEOUT", 10*time.Second),
+		WriteTimeout: durationEnv("HTTP_WRITE_TIMEOUT", 30*time.Second),
+	}
+	if cfg.DatabaseURL == "" {
+		return cfg, fmt.Errorf("DATABASE_URL is required")
+	}
+	return cfg, nil
+}
+
+func env(key, fallback string) string {
+	if v := os.Getenv(key); v != "" {
+		return v
+	}
+	return fallback
+}
+
+func durationEnv(key string, fallback time.Duration) time.Duration {
+	v := os.Getenv(key)
+	if v == "" {
+		return fallback
+	}
+	sec, err := strconv.Atoi(v)
+	if err != nil || sec <= 0 {
+		return fallback
+	}
+	return time.Duration(sec) * time.Second
+}