Welcome to gotag-validator 👋

Generic module using this https://github.com/go-playground/validator module. This module return problem details RFC.

Install

	go get github.com/libercapital/gotag-validator/v2

How to use

package main

import (
	"regexp"

	"github.com/go-playground/validator/v10"
	"github.com/labstack/echo/v4"
	gotag_validator "github.com/libercapital/gotag-validator/v2"
	"schneider.vip/problem"
)

type MyStruct struct {
	DecimalValue string `validate:customDecimalValue`
}

var decimalValuesRegex = regexp.MustCompile("^(\\d*\\.)?\\d{2}$")

func NewValidator() (gotag_validator.IValidator, error) {
	customTags := map[string]func(fl validator.FieldLevel) bool{
		"customDecimalValue": validDecimalValue,
	}

	customMessages := map[string]string{
		"customDecimalValue": "must be in a decimal value format as %.2f",
	}

	return gotag_validator.NewValidator(customTags, customMessages)
}

func validDecimalValue(fl validator.FieldLevel) bool {
	return decimalValuesRegex.MatchString(fl.Field().String())
}

// manual call
func main() {
	myStruct := MyStruct{DecimalValue: "1234"}
	newValidator, err := gotag_validator.NewValidator(nil, nil)
	if err != nil {
		panic(err)
	}

	problemJSON := newValidator.Validate(myStruct)
	println(problemJSON)
}

// echo call
func main() {
	e := echo.New()
	myStruct := MyStruct{DecimalValue: "1234"}

	validator, err := gotag_validator.NewValidator(nil, nil)
	if err != nil {
		panic(err)
	}

	e.Validator = validator

	if err := e.Validator.Validate(myStruct); err.(*problem.Problem) != nil {
		println(err.(*problem.Problem))
	}
}

Tag Global Validators

We have a global validators to use in all liber projects, for now we have only this custom tags that can be used by liber projects.

TAG	Description
strdatetimegte	Custom validation of date string is greater than other ex: D1 >= D2
document	Custom validation of CPF and CNPJ document
decimal2places	Custom validation of decimal values with %.2f float format
brzipcode	Custom validation of zip code brazilian formatted 00000-000

Author

👤 jonas.gomes

Contributors

👤 Eduardo Mello

• Github: @EduardoRMello

Show your support

Give a ⭐️ if this project helped you!

TODO

• Added i18n

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