launch.json

{
  // Use IntelliSense to learn about possible attributes.
  // Hover to view descriptions of existing attributes.
  // For more information, visit: https://go.microsoft.com/fwlink/?linkid=830387
  "version": "0.2.0",
  "configurations": [
    // http://localhost:3000
    {
      "type": "node",
      "request": "launch",
      "name": "Server - Run Express",
      "program": "${workspaceFolder}/server/express.js"
    },

    // http://localhost:1962
    {
      "type": "node",
      "request": "launch",
      "name": "Client - Run Ext JS App Watch",
      "program": "${workspaceFolder}/node_modules/webpack-dev-server/bin/webpack-dev-server.js",
      "cwd": "${workspaceFolder}/client",
      "args": [
        "--env.enviroment=development",
        "--config",
        "./webpack.config.js"
      ],
      "env": {
        "environment": "development",
        "NODE_ENV": "development"
      }
    },
    
    // Open Chrome
    {
      "type": "chrome",
      "request": "launch",
      "name": "Launch Chrome - Server",
      "url": "http://localhost:3000",
      "webRoot": "${workspaceFolder}"
    }
  ]
}