pm2-slack-monitor/index.js

A CLI tool to monitor PM2 processes and send error logs to individual Slack channels via webhook.

#!/usr/bin/env node

const { Command } = require('commander');
const monitor = require('./src/monitor');
const config = require('./src/config');
const pkg = require('./package.json'); // To pull version from package.json

const program = new Command();

program
    .name('my-monitor')
    .description('🛠️ Terminal-based utility to monitor PM2 processes and send Slack alerts.')
    .version(pkg.version); // Enables `--version`

// `my-monitor start`
program
    .command('start')
    .description('Start monitoring all registered PM2 processes')
    .action(monitor.start);

// `my-monitor add <processName> <slackWebhook>`
program
    .command('add <processName> <slackWebhook>')
    .description('Add a PM2 process and assign a Slack webhook')
    .action(config.addProcess);

// `my-monitor remove <processName>`
program
    .command('remove <processName>')
    .description('Remove a process from monitoring')
    .action(config.removeProcess);

// (Optional) List all monitored processes
program
    .command('list')
    .description('List all monitored processes with their Slack webhooks')
    .action(() => {
        const data = config.getProcessesWithWebhooks?.();
        if (!data || Object.keys(data).length === 0) {
            console.log('No processes are currently monitored.');
            return;
        }
        console.table(data);
    });

// update slackwebhookurl for a monitored process
program
    .command('update <processName> <webhookUrl>')
    .description('Update Slack webhook for a monitored process')
    .action((processName, webhookUrl) => {
        config.updateProcess(processName, webhookUrl);
    });


program.parse(process.argv);