Initial commit: Go DNS microservice boilerplate

internal/config/config.go

@@ -0,0 +1,29 @@
+package config
+
+import (
+	"os"
+	"strings"
+)
+
+type Config struct {
+	Port        string
+	APIKey      string
+	CORSOrigins []string
+	LogFormat   string
+}
+
+func Load() *Config {
+	return &Config{
+		Port:        getEnv("PORT", "8080"),
+		APIKey:      getEnv("API_KEY", ""),
+		CORSOrigins: strings.Split(getEnv("CORS_ORIGINS", "http://localhost:3000"), ","),
+		LogFormat:   getEnv("LOG_FORMAT", "text"),
+	}
+}
+
+func getEnv(key, fallback string) string {
+	if v := os.Getenv(key); v != "" {
+		return v
+	}
+	return fallback
+}