payload-cms-mcp/scripts/check-redis.js

Payload CMS 3.0 MCP Server - A specialized Model Context Protocol server for Payload CMS

#!/usr/bin/env node

const { createClient } = require('redis');
const dotenv = require('dotenv');

// Load environment variables
dotenv.config();

// Clean the Redis URL if it contains variable name or quotes
const cleanRedisUrl = (url) => {
  if (!url) return undefined;
  
  // If the URL contains KV_URL= or REDIS_URL=, extract just the URL part
  if (url.includes('KV_URL=') || url.includes('REDIS_URL=')) {
    const match = url.match(/(?:KV_URL=|REDIS_URL=)["']?(rediss?:\/\/[^"']+)["']?/);
    return match ? match[1] : url;
  }
  
  // Remove any surrounding quotes
  return url.replace(/^["'](.+)["']$/, '$1');
};

const redisUrl = cleanRedisUrl(process.env.REDIS_URL) || cleanRedisUrl(process.env.KV_URL);

if (!redisUrl) {
  console.error('\x1b[31m%s\x1b[0m', 'Error: REDIS_URL or KV_URL environment variable is not set');
  console.log('\x1b[33m%s\x1b[0m', 'Please set up your environment variables:');
  console.log('1. Copy .env.example to .env: cp .env.example .env');
  console.log('2. Edit .env file with your Redis connection details');
  process.exit(1);
}

async function checkRedisConnection() {
  console.log(`Checking Redis connection at ${redisUrl}...`);
  
  const client = createClient({
    url: redisUrl,
    socket: {
      connectTimeout: 5000,
    }
  });
  
  client.on('error', (err) => {
    console.error('\x1b[31m%s\x1b[0m', 'Redis connection error:', err.message);
    
    if (err.message.includes('ECONNREFUSED')) {
      console.log('\x1b[33m%s\x1b[0m', '\nRedis server is not running. You can:');
      console.log('1. Start Redis with Docker: docker run -p 6379:6379 redis:alpine');
      console.log('2. Use docker-compose: npm run docker:up');
      console.log('3. Install and run Redis locally: https://redis.io/download');
    }
    
    process.exit(1);
  });
  
  try {
    await client.connect();
    console.log('\x1b[32m%s\x1b[0m', 'Successfully connected to Redis!');
    await client.quit();
    process.exit(0);
  } catch (err) {
    console.error('\x1b[31m%s\x1b[0m', 'Failed to connect to Redis:', err.message);
    process.exit(1);
  }
}

checkRedisConnection();