bitcoincashjs/docs/Address.md

Address

Represents a bitcoin Address. Addresses became the most popular way to make bitcoin transactions. See the official Bitcoin Wiki for more information.

Instantiate an Address

To be able to receive bitcoin an address is needed, here is how to create an address from a new private key. Please see the PrivateKey docs for more information about exporting and saving a key.

var PrivateKey = require('bitcore/lib/privatekey');
var privateKey = new PrivateKey();
var address = privateKey.toAddress();

You can also instantiate an address from a String or PublicKey.

var Address = require('bitcore/lib/address');
var PublicKey = require('bitcore/lib/publickey');
var Networks = require('bitcore/lib/networks');

// from a string
var address = Address.fromString('mwkXG8NnB2snbqWTcpNiK6qqGHm1LebHDc');

// a default network address from a public key
var publicKey = PublicKey(privateKey);
var address = Address.fromPublicKey(publicKey);

// a testnet address from a public key
var publicKey = PublicKey(privateKey);
var address = Address.fromPublicKey(publicKey, Networks.testnet);

Validating an Address

The main use that we expect you'll have for the Address class in bitcore is validating that an address is a valid one, what type of address it is (you may be interested on knowning if the address is a simple "pay to public key hash" address or a "pay to script hash" address) and what network does the address belong to.

The code to do these validations looks like this:

// validate an address
if (Address.isValid(input){
  ...
}

// validate that an input field is a valid testnet address
if (Address.isValid(input, Networks.testnet){
  ...
}

// validate that an input field is a valid livenet pubkeyhash
if (Address.isValid(input, Networks.livenet, Address.Pay2PubKeyHash){
  ...
}

// get the specific validation error that can occurred
var error = Address.getValidationError(input, Networks.testnet);
  if (error) {
    // handle the error
  }
}