pm2 watch code example

Example 1: install pm2

npm install pm2 -g

Example 2: start stop restart pm2

pm2 start app.js --name "my-api"
pm2 start web.js --name "web-interface"

pm2 stop web-interface

pm3 restart web-interface

Example 3: pm2

module.exports = {
  apps : [{
    name: "app",
    script: "./app.js",
    env: {
      NODE_ENV: "development",
    },
    env_production: {
      NODE_ENV: "production",
    }
  }, {
     name: 'worker',
     script: 'worker.js'
  }]
}