get file or remote file md5

getFIleMD5.mjs

import crypto from 'crypto';
import fs from 'fs';
import http from 'http';
import https from 'https';

export const getFileMD5 = async (filePath, encoding='hex') => {
  const hash = crypto.createHash('md5');
  hash.setEncoding(encoding);
  return new Promise((resolve, reject) => {
    fs.createReadStream(filePath)
      .once('error', reject)
      .pipe(hash)
      .once('finish', () => {
        resolve(hash.read());
      });
  })
}


export const getRemoteFileMD5 = async (url, encoding='hex') => {
  return new Promise((resolve, reject) => {
    const isHttps = url.indexOf('https') === 0;
    const protocol = isHttps ? https : http;
    const hash = crypto.createHash('md5');
    hash.setEncoding(encoding);
    protocol.get(url, (response) => {
      response.once('error', reject)
        .pipe(hash)
        .once('finish', () => {
          resolve(hash.read());
        })
    });
  });
}