bo-crypto-address-validator/src/tezos_validator.js

Wallet address validator for Bitcoin and other Altcoins.

var base58 = require('./crypto/base58')

function getDecoded (address) {
  try {
    return base58.decode(address)
  } catch (e) {
    // if decoding fails, assume invalid address
    return null
  }
}

module.exports = {
  isValidAddress: function (address) {
    var lowerCaseAddress = address.toLowerCase();
    var decoded = getDecoded(address)

    if (!address.length === 36 || !(lowerCaseAddress.startsWith('tz') || lowerCaseAddress.startsWith('kt')) || !decoded || !Array.isArray(decoded) || decoded.length !== 27) {
      return false
    }

    return true
  }
}