serverless-spy
Version:
CDK-based library for writing elegant integration tests on AWS serverless architecture and an additional web console to monitor events in real time.
18 lines (17 loc) • 430 B
JavaScript
import { toUint8Array } from "@smithy/util-utf8";
import { Writable } from "stream";
export class HashCalculator extends Writable {
constructor(hash, options) {
super(options);
this.hash = hash;
}
_write(chunk, encoding, callback) {
try {
this.hash.update(toUint8Array(chunk));
}
catch (err) {
return callback(err);
}
callback();
}
}