Looking for advice on implementing robust WebSocket reconnection logic for the Genesys Cloud Notification API in a Node.js environment. I am building an ETL pipeline that streams conversation events directly from GC to an S3 staging area before processing with AWS Glue. Currently, my client uses the standard ws library to connect to the endpoint wss://api.mypurecloud.com/api/v2/analytics/conversations/events. The initial connection works fine, but when the server closes the connection (usually after 60 seconds or during maintenance), my reconnection handler triggers a storm of rapid reconnect attempts, eventually hitting the rate limit and returning 429 Too Many Requests. I have tried adding a simple exponential backoff with setTimeout, but the latency spikes during the reconnect window cause data gaps in my Redshift tables. My current reconnection snippet looks like this: ws.on('close', (code, reason) => { console.log('Connection closed', code); setTimeout(() => connect(), 1000); });. Is there a recommended pattern or library wrapper that handles the GC-specific keep-alive and reconnection headers properly? I want to ensure zero data loss while respecting the API’s connection limits. Any code examples for handling the 1000 normal closure versus unexpected drops would be appreciated.
Have you tried implementing exponential backoff with jitter instead of immediate reconnection? The Notification API enforces strict rate limits and connection thresholds. Aggressive reconnection attempts will trigger 429 Too Many Requests responses, causing your pipeline to fail silently. You need a robust retry mechanism that respects the server’s capacity.
Here is a minimal implementation using ws and axios for the initial token fetch. This example calculates a random delay between 1s and 30s after each failure. It also ensures the WebSocket URL includes the valid OAuth token in the query string, which is mandatory for authentication.
const WebSocket = require('ws');
const axios = require('axios');
let ws;
let reconnectAttempts = 0;
const MAX_ATTEMPTS = 10;
async function connect() {
if (reconnectAttempts >= MAX_ATTEMPTS) {
console.error('Max reconnection attempts reached.');
return;
}
try {
const token = await getNewToken(); // Your OAuth logic
const url = `wss://api.mypurecloud.com/api/v2/analytics/conversations/events?access_token=${token}`;
ws = new WebSocket(url);
ws.on('open', () => {
console.log('Connected');
reconnectAttempts = 0;
});
ws.on('error', (err) => {
console.error('WebSocket error:', err.message);
});
ws.on('close', (code, reason) => {
console.log(`Closed: ${code} - ${reason}`);
scheduleReconnect();
});
} catch (err) {
console.error('Connection failed:', err);
scheduleReconnect();
}
}
function scheduleReconnect() {
const delay = Math.random() * 30000 + 1000; // 1s to 30s jitter
console.log(`Reconnecting in ${delay.toFixed(0)}ms...`);
setTimeout(() => {
reconnectAttempts++;
connect();
}, delay);
}
connect();
Ensure your getNewToken function handles scope validation for analytics:read. If the token expires mid-stream, the server will close the connection with code 1000. Your client must detect this and refresh the token before attempting the next WebSocket handshake. Do not reuse expired tokens.