Function Load

_examples/database/mongodb/env/env.go:38–67

Load loads environment variables that are being used across the whole app. Loading from file(s), i.e .env or dev.env Example of a 'dev.env': PORT=8080 DSN=mongodb://localhost:27017 After `Load` the callers can get an environment variable via `os.Getenv`.

(envFileName string)

//
// After `Load` the callers can get an environment variable via `os.Getenv`.
func Load(envFileName string) {
	if args := os.Args; len(args) > 1 && args[1] == "help" {
		fmt.Fprintln(os.Stderr, "https://github.com/kataras/iris/blob/main/_examples/database/mongodb/README.md")
		os.Exit(-1)
	}

	// If more than one filename passed with comma separated then load from all
	// of these, a env file can be a partial too.
	envFiles := strings.Split(envFileName, ",")
	for _, envFile := range envFiles {
		if filepath.Ext(envFile) == "" {
			envFile += ".env"
		}

		if fileExists(envFile) {
			log.Printf("Loading environment variables from file: %s\n", envFile)

			if err := godotenv.Load(envFile); err != nil {
				panic(fmt.Sprintf("error loading environment variables from [%s]: %v", envFile, err))
			}
		}
	}

	// envMap, _ := godotenv.Read(envFiles...)
	// for k, v := range envMap {
	// 	log.Printf("◽ %s=%s\n", k, v)
	// }

	parse()
}

func getDefault(key string, def string) string {
	value := os.Getenv(key)