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How to debug node.js app running with TypeScript in WebStorm?

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Update tsconfig.json to add sourceMap=true property in compilerOptions

{
  "compilerOptions": {
    "module": "commonjs",
    "moduleResolution": "node",
    "noImplicitReturns": true,
    "outDir": "lib",
    "target": "es6",
    "preserveConstEnums": true,
    "removeComments": false,
    "sourceMap": true,
    "inlineSources": true,
    "typeRoots": [
      "./node_modules/@types"
    ]
  },
  "exclude": [
    "node_modules",
    "lib"
  ]
}

In the Edit Run/Debug Configuration,

  1. Write following line in Node parameters field. Don't forget to mention your port number! In my case it is 3000

--inspect=3000 --require ts-node/register

  1. Mention your entry .ts file in Javascript file field. In my case it is bin/www.ts

    Edit Run/Debug Configurations

  2. Debug your newly created configuration

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