Authorization

const iat = Math.floor(Date.now() / 1000) - 7200; // 2 hours in the past
const exp = Math.floor(Date.now() / 1000) + 10;   // 10 seconds from now

const payload = {
  sdkKey: SDK_KEY,
  mn: meetingNumber,
  role: role,
  iat: iat,
  exp: exp,
  tokenExp: exp
};

const jwt = require('jsonwebtoken');

function generateSignature(sdkKey, sdkSecret, meetingNumber, role) {
  const iat = Math.floor(Date.now() / 1000) - 7200; // 2 hours ago
  const exp = Math.floor(Date.now() / 1000) + 10;   // 10 seconds from now
  
  const payload = {
    sdkKey: sdkKey,
    mn: meetingNumber,
    role: role,
    iat: iat,
    exp: exp,
    tokenExp: exp
  };
  
  return jwt.sign(payload, sdkSecret, { algorithm: 'HS256' });
}