Small package for validating postal codes. While the validation process does not guarantee that the postcode actually exists, it does guarantee that the format of the provided input is valid.

The reason for creating this package is that there is no good regular expression for validating postal codes, and even if it existed, it would have been huge and inefficient.

Full documentation can be found at: https://pkg.go.dev/github.com/adrg/postcode.

go get github.com/adrg/postcode

package main

import (
	"github.com/adrg/postcode"
)

func main() {
    if err := postcode.Validate("10007"); err != nil {
        // Treat error.
    }
}

For more information see

• Wikipedia's List of postal codes
• Wikipedia's List of country codes

Contributions in the form of pull requests, issues or just general feedback, are always welcome.
See CONTRIBUTING.MD.

Copyright (c) 2016 Adrian-George Bostan.

This project is licensed under the MIT license. See LICENSE for more details.