hashExecutable.js

const path = require("path");
const fs = require("fs");
const crypto = require("crypto");

const YOUR_FILE_PATH = "./output/gSender-1.5.5-x64.exe";

function hashFile(file, algorithm = "sha512", encoding = "base64", options) {
  return new Promise((resolve, reject) => {
    const hash = crypto.createHash(algorithm);
    hash.on("error", reject).setEncoding(encoding);
    fs.createReadStream(
      file,
      Object.assign({}, options, {
        highWaterMark: 1024 * 1024,
        /* better to use more memory but hash faster */
      }),
    )
      .on("error", reject)
      .on("end", () => {
        hash.end();
        console.log("hash done");
        console.log(hash.read());
        resolve(hash.read());
      })
      .pipe(hash, {
        end: false,
      });
  });
}

const installerPath = path.resolve(__dirname, YOUR_FILE_PATH);

hashFile(installerPath);