Function RequiredFields

config.go:530–546

RequiredFields returns the names of the underlying configuration structure fields which are tagged as required. To tag a field as being required, a "required" struct struct tag must be present and set to true. RequiredFields doesn't support struct embedding other structs.

(cfg interface{})

//
// RequiredFields doesn't support struct embedding other structs.
func RequiredFields(cfg interface{}) []string {
	var fields []string

	tf := reflect.TypeOf(cfg).Elem()
	for i := 0; i < tf.NumField(); i++ {
		field := tf.Field(i)

		req := field.Tag.Get("required")
		if req != "true" {
			continue
		}

		fields = append(fields, field.Name)
	}

	return fields
}

// CheckRequiredFields checks that all fields that are tagged as required in
// cfg's type have actually been set to a value other than the field type zero