roese-utils/rsvalidator/rsvalidator.go

package rsvalidator

import (
	"regexp"
	"strings"

	"github.com/go-playground/validator/v10"
)

type ErrorResponse struct {
	FailedField string
	Tag         string
	Value       string
}

var Validate = validator.New()

func ValidateStruct(event interface{}) []*ErrorResponse {
	var errors []*ErrorResponse
	err := Validate.Struct(event)
	if err != nil {
		for _, err := range err.(validator.ValidationErrors) {
			var element ErrorResponse
			element.FailedField = err.StructNamespace()
			element.Tag = err.Tag()
			element.Value = err.Param()
			errors = append(errors, &element)
		}
	}
	return errors
}

func ValidateNumericString(fl validator.FieldLevel) bool {
	str := fl.Field().String()
	return strings.TrimSpace(str) != "" && regexp.MustCompile(`^[0-9]+$`).MatchString(str)
}