generate-token.js

const jwt = require("jsonwebtoken");

const ZOOM_SDK_KEY = "";
const ZOOM_SDK_SECRET = "";
const HOUR = 60 * 60;

const iat = Math.floor(Date.now() / 1000) - 60; // ms -> s
const exp = iat + 24 * HOUR;

const token = jwt.sign(
  {
    appKey: ZOOM_SDK_KEY,
    iat: iat,
    exp: exp,
    tokenExp: exp,
  },
  ZOOM_SDK_SECRET,
  {
    header: {
      alg: "HS256",
      typ: "JWT",
    },
  }
);

console.log(token);