Calculate pay_to_address_script from address (ElectrumX API integration)

[zilveer]

Hi,
I want to be able to calculate "pay_to_address_script" from an address with Coinbin.
This is needed with the lately updated ElectrumX according to its docs.

Someone in bitcoinj-js lib #bitcoinjs/bitcoinjs-lib#990 posted a similiar request and had it solved with the coding:

let script = bitcoin.address.toOutputScript(address)
let hash = bitcoin.crypto.sha256(script)
let reversedHash = new Buffer(hash.reverse())

console.log(address, ' maps to ', reversedHash.toString('hex'))

For ElectrumX reference: https://github.com/kyuupichan/electrumx/blob/4dd226f9c090d968b80360d607368f5213ccaa56/lib/coins.py#L165

this is my attempt so far but I am doing something wrong.
here is ElectrumX guide on how to convert address to script hashes .

var address = '1A1zP1eP5QGefi2DMPTfTL5SLmv7DivfNa';

var pubkeyHashScript = Crypto.util.bytesToHex( i.pubkeyHash(address).buffer);
//should generate: 76a91462e907b15cbf27d5425399ebf6f0fb50ebb88f1888ac
console.log('pubkeyHashScript: ', pubkeyHashScript);

var pubkeyHashScriptSHA256 = Crypto.SHA256(pubkeyHashScript);

//should generate: 6191c3b590bfcfa0475e877c302da1e323497acf3b42c08d8fa28e364edf018b
console.log('pubkeyHashScriptSHA256: ', pubkeyHashScriptSHA256);

var pubkeyHashScriptSHA256Reversed = Crypto.util.bytesToHex(Crypto.util.hexToBytes(pubkeyHashScriptSHA256).reverse());
console.log('pubkeyHashScriptSHA256Reversed: ', pubkeyHashScriptSHA256Reversed);

//should generate: 8b01df4e368ea28f8dc0423bcf7a4923e3a12d307c875e47a0cfbf90b5c39161

any help or advice on this issue would make me happy, Zilveer