check

Validation Library for Go. API Documentation on go.pkgdoc.org. Inspiration and partial port from is.js

Installation

go get github.com/polds/check

Usage

Credit Card

To check if a credit card is a valid card

check.CreditCard("4111111111111111").CardIs("Any") // Returns true

To validate if a card is a specific type of card (Supported cards: American Express, Visa, Discover, Mastercard)

check.CreditCard("4111111111111111").CardIs("MasterCard") // Returns false

To determine the merchant of credit card

check.CreditCard("4111111111111111").Merchant() // Returns Visa

Email

To validate an email address

check.Email("test@test.com").IsValid() // Returns true

Zip Code

To validate if a provided zip code matches a target country standard

check.Zip("83406").OfCountry("us") // Returns true

Issues

• Email regex fails: user@[IPv6:2001:db8:1ff::a0b:dbd0], postbox@com, admin@mailserver1. Besides those examples, regex is RFC compliant.