[hash] #hash #sha256 #md5 #farmhash

farmhash.js

import farmhash from "farmhash";

/**
 * Returns a farmhash
 *
 * @param {string} content
 */
export function getFarmhash(content) {
  return farmhash.hash64(stable);
}

md5.js

import { createHash } from "node:crypto";

/**
 * Returns a MD5 hash
 *
 * @param {import('node:crypto').BinaryLike} content
 */
export function md5(content) {
  return createHash("md5").update(content).digest("hex");
}

object-hash.js

import assert from "assert";
import stringify from "safe-stable-stringify";

/**
 * Returns JSON object hash.
 *
 * @param {object} obj
 * @param {(content: string) => string} hasher
 */
export function getObjectHash(obj, hasher = (content) => content) {
  const stable = stringify(obj);

  assert.ok(stable);

  return hasher(stable);
}

sha256.js

/**
 * Returns a SHA256 hash using SHA-2 for the given `content`.
 *
 * @param {import('node:crypto').BinaryLike} content
 * @see https://en.wikipedia.org/wiki/SHA-2
 */
export function sha256(content) {
  return createHash("sha256").update(content).digest("hex");
}