Valifino

A comprehensive library of financial validators for Node.js, built using TypeScript. This library provides a set of functions to validate various financial instruments and formats such as credit card numbers, IBANs, SWIFT/BIC codes, and more.

Install

npm install valifino

Features

• Validate credit card numbers using the Luhn algorithm
• Validate CVV codes for various card types
• Validate expiration dates of credit cards
• Validate IBANs for multiple countries [TBD]
• Validate SWIFT/BIC codes [TBD]
• Validate routing numbers (e.g., ABA routing numbers) [TBD]
• Validate bank account numbers [TBD]
• Validate currency codes [TBD]
• Validate transaction amounts [TBD]
• Validate cryptocurrency addresses (e.g., Bitcoin, Ethereum) [TBD]

API

isValidCreditCardNumber(cardNumber: string): boolean

Validates a credit card number using the Luhn algorithm.

Example:

import { isValidCreditCardNumber} from 'valifino';

/**
 * @param cardNumber - The card number in string format.
 * @returns True if the card number is valid, false otherwise.
 */
isValidCreditCardNumber('4111111111111111'); // => true

isValidCVV(cardType: string, cvv: string): boolean

Validates the CVV code of a credit card based on the card type.

Example:

import { isValidCVV } from 'valifino';

/**
 * Validates the CVV code for the given card type.
 * @param cvv - The CVV code to validate.
 * @param cardType - The type of the card (e.g., CardType.Visa, CardType.MasterCard).
 * @returns True if the CVV is valid, false otherwise.
 */
isValidCVV(123, 'Visa'); // => true
isValidCVV(432, 'Amex'); // => false

isValidExpirationDate(expirationDate: string): boolean

Validates the expiration date of a credit card.

import { isValidExpirationDate } from 'valifino';

/**
 * @param expirationDate - The expiration date in the format MM/YY or MM/YYYY.
 * @returns True if the expiration date is valid, false otherwise.
 */
isValidExpirationDate('12/2023'); // => true
isValidExpirationDate('01-2025'); // => false

isValidIBAN [TBD]

isValidSWIFTBIC [TBD]

isValidRoutingNumber [TBD]

isValidAccountNumber [TBD]

isValidCurrencyCode [TBD]

isValidTransactionAmount [TBD]

isValidCryptoAddress [TBD]