node-express app.get() marked as unresolved in webstorm

express webstorm unresolved-external
Jonathan picture Jonathan · Sep 30, 2014 · Viewed 14.7k times · Source

If you follow JetBrains' Getting Started with Node.js in WebStorm instructions, node-express specific code is highlighted correctly. However if you create your own simple node-express project, e.g. using node-express' Guide, then express specific functions such as app.get() are underlined and marked with the following warning:

Unresolved function or method get()

This happens even if you enable the following libraries under Settings\JavaScript\Libraries:

  • Node.js Globals
  • Node.js v0.10.31 Core Modules
  • express-DefinitelyTyped (which you need to download)

How can I configure WebStorm to resolve node-express functions such as app.get()?

Answer

Jorge Gil picture Jorge Gil · Aug 27, 2017

Instead of express definitelyTyped, use express types in your project:

npm install --save-dev @types/express

Alternatively, for yarn users:

yarn add --dev @types/express

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