Port PHP encryption/decryption to Node.js - php

Question

I'm trying to port over the following code to Node.js with no luck.
$output = false;
$key = hash( 'sha256', self::SECRET_KEY );
$iv = substr( hash( 'sha256', self::SECRET_IV ), 0, 16 );
if( $action == 'e' ) {
$output = base64_encode( openssl_encrypt( $string, self::ENCRYPT_METHOD, $key, 0, $iv ) );
}
else if( $action == 'd' ){
$output = openssl_decrypt( base64_decode( $string ), self::ENCRYPT_METHOD, $key, 0, $iv );
}
return $output;
This is where I am so far, but it's either spitting out gibberish or I get one of several errors.
var crypto = require('crypto'),
algorithm = ENCRYPT_METHOD,
password = SECRET_IV;
function encrypt(text){
var cipher = crypto.createCipher(algorithm, sha256(SECRET_KEY), sha256(SECRET_IV).substring(0,16))
let p = Buffer.from(text, 'utf8').toString('base64');
var crypted = cipher.update(p,'utf8','base64');
crypted += cipher.final('base64');
return crypted;
}
function sha256(data) {
return crypto.createHash("sha256").update(data).digest("hex");
}
function decrypt(text){
var decipher = crypto.createDecipher(algorithm, sha256(SECRET_KEY), sha256(SECRET_IV).substring(0,16));
decipher.setAutoPadding(false);
var dec = decipher.update(text,'base64','utf-8');
dec += decipher.final('utf8');
return dec;
}
I've tried decoding/encoding with base64, but this also does not work. Once I added setAutoPaddding to false, I started making some progress. I found on one thread that this is an issue when encoding/decoding from one language on Node.
Any help would be appreciated.