[removed] Equivalent of PHP's hash_hmac() with RAW BINARY output?

Question

I am connecting to the Amazon Product Advertising API, and to sign my request I need to base64-encode the raw binary output of an HMAC-SHA256 hash.

In t

Answer 1

PHP:

base64_encode(hash_hmac('sha256', $value, $key, true));

Nodejs equivalent:

const crypto = require('crypto');
let token = crypto.createHmac("sha256", key).update(value).digest().toString('base64');