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README.md

cpfcnpj

Brazilian taxpayer identification (CPF e CNPJ) - validation package in Golang.

It is an essential package for include validation for these numbers in your application.

Eg: It can be used in a payment system or account system.

Information about CPF and CNPJ

Installation

Use the go tool for do that:

$ go get github.com/klassmann/cpfcnpj

Usage

You need to import the package github.com/klassmann/cpfcnpj like that:

import (
    "github.com/klassmann/cpfcnpj"
)

Example

package main

import (
	"fmt"

	"github.com/klassmann/cpfcnpj"
)

func main() {

	// This will initialize a new CNPJ and clear the string
	cnpj := cpfcnpj.NewCNPJ("70.082.591/0001-79")

	// Verifies if it is a valid document
	if !cnpj.IsValid() {
		panic(fmt.Errorf("it is not a valid document: %v", cnpj))
	}

	// Cleaned output
	fmt.Printf("%v\n", cnpj)
	// Output: 70082591000179

	// Formatted output
	fmt.Println(cnpj.String())
	// Output: 70.082.591/0001-79
}

Function: cpfcnpj.ValidateCPF(s string) bool

Validates the CPF document

import (
    "fmt"
    "github.com/klassmann/cpfcnpj"
)

/// CPF
func ValidatingCPF() {
    r := cpfcnpj.ValidateCPF("71656686734")

    if !r {
        fmt.Printf("The document is invalid.")
    }
}

Function: cpfcnpj.ValidateCNPJ(s string) bool

Validates the CNPJ document

/// CNPJ
func ValidatingCNPJ() {
    r := cpfcnpj.ValidateCNPJ("64493884000146")

    if !r {
        fmt.Printf("The document is invalid.")
    }
}

Function: cpfcnpj.Clean(s string) string

Clean the formatted document

cpf := cpfcnpj.Clean("111.222.333-99")
cnpj := cpfcnpj.Clean("10.963.268/0001-82")

License

Apache 2.0

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CPF and CNPJ - Validation package in Go

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