inbox.js

const express = require('express');
const { RtcTokenBuilder, RtcRole } = require('agora-token');

const app = express();
const PORT = process.env.PORT || 3000;

// IMPORTANT: Set these in your Render/Vercel Environment Variables
const APP_ID = process.env.APP_ID;
const APP_CERTIFICATE = process.env.APP_CERTIFICATE;

app.get('/rtc/:channelName', (req, res) => {
    const channelName = req.params.channelName;
    if (!channelName) {
        return res.status(400).json({ 'error': 'channel name is required' });
    }

    // Use 0 for UID to allow any user to join with this token
    const uid = 0; 
    const role = RtcRole.PUBLISHER;

    // Token expires in 24 hours (86400 seconds)
    const expirationTimeInSeconds = 86400;
    const currentTimestamp = Math.floor(Date.now() / 1000);
    const privilegeExpiredTs = currentTimestamp + expirationTimeInSeconds;

    const token = RtcTokenBuilder.buildTokenWithUid(
        APP_ID, 
        APP_CERTIFICATE, 
        channelName, 
        uid, 
        role, 
        privilegeExpiredTs
    );

    return res.json({ 'rtcToken': token });
});

app.listen(PORT, () => {
    console.log(`Token server running on port ${PORT}`);
});