add media service

internal/config/config.go

@@ -0,0 +1,41 @@
+package config
+
+import (
+	"os"
+	"strings"
+)
+
+type Config struct {
+	App struct {
+		Env string
+	}
+	GRPC struct {
+		Port string
+	}
+	Storage struct {
+		Bucket    string
+		Region    string
+		Endpoint  string
+		AccessKey string
+		SecretKey string
+	}
+	Logging struct {
+		Level string
+	}
+}
+
+func Load() *Config {
+	var cfg Config
+	get := func(key string) string { return strings.TrimSpace(os.Getenv(key)) }
+
+	cfg.App.Env = get("APP_ENV")
+	cfg.GRPC.Port = get("GRPC_PORT")
+	cfg.Storage.Bucket = get("S3_BUCKET")
+	cfg.Storage.Region = get("S3_REGION")
+	cfg.Storage.Endpoint = get("S3_ENDPOINT")
+	cfg.Storage.AccessKey = get("S3_ACCESS_KEY")
+	cfg.Storage.SecretKey = get("S3_SECRET_KEY")
+	cfg.Logging.Level = get("LOG_LEVEL")
+
+	return &cfg
+}