new file: .env copy

new file:   internal/config/config.go
add configs .env file and config loader

main_dc/yalarba/api_yal/.env copy

@@ -0,0 +1,12 @@
+# DB environment variabels
+DB_HOST=localhost
+DB_PORT=5432
+DB_USER=postgres
+DB_PASSWORD=postgres
+DB_NAME=mydb
+APP_PORT=8080
+JWT_SECRET=secret
+UPLOAD_PATH=./storage/uploads
+ENVIRONMENT=development
+LOG_LEVEL=debug
+API_ES_APP_PORT=8088

main_dc/yalarba/api_yal/internal/config/config.go

@@ -0,0 +1,42 @@
+package config
+
+import (
+	"os"
+)
+
+type Config struct {
+	DBHost      string
+	DBPort      string
+	DBUser      string
+	DBPassword  string
+	DBName      string
+	JWTSecret   string
+	ServerPort  string
+	UploadPath  string
+	LogLevel    string
+	Environment string
+	AppPort     string
+}
+
+func Load() *Config {
+	return &Config{
+		DBHost:      getEnv("DB_HOST", "localhost"),
+		DBPort:      getEnv("DB_PORT", "5432"),
+		DBUser:      getEnv("DB_USER", "postgres"),
+		DBPassword:  getEnv("DB_PASSWORD", "postgres"),
+		DBName:      getEnv("DB_NAME", "mydb"),
+		JWTSecret:   getEnv("JWT_SECRET", "secret"),
+		ServerPort:  getEnv("SERVER_PORT", "8080"),
+		UploadPath:  getEnv("UPLOAD_PATH", "./storage/uploads"),
+		LogLevel:    getEnv("LOG_LEVEL", "debug"),
+		Environment: getEnv("ENVIRONMENT", "development"),
+		AppPort:     getEnv("APP_PORT", "8088"),
+	}
+}
+
+func getEnv(key, defaultValue string) string {
+	if value := os.Getenv(key); value != "" {
+		return value
+	}
+	return defaultValue
+}