Monitor Express.js Background Jobs with CronRabbit
ExpressThe Problem
Express.js apps running background jobs via node-cron, Bull, or setInterval can fail when the process restarts, runs out of memory, or encounters unhandled errors.
The Solution
Add CronRabbit pings inside your job handlers. Separate monitors for each background task give full visibility.
Integration
Add monitoring to your job handler functions. Use async/await with try/catch for clean error reporting.
Code Examples
Express app with monitored cron
JavaScriptconst express = require("express");
const cron = require("node-cron");
const app = express();
const PING = "https://ping.cronrabbit.com/your-id";
// Background job with monitoring
cron.schedule("0 */6 * * *", async () => {
await fetch(`${PING}/start`);
try {
await cleanupExpiredSessions();
await fetch(PING);
} catch (err) {
await fetch(`${PING}/fail`);
console.error("Cleanup failed:", err);
}
});
app.listen(3000);