Node_modules seem to be missing

After completing the TypeScript 101 QuickStart tutorial using Visual Studio 2015 and Node Tools for Visual Studio, I attempted to import the 'winston' npm module. However, no matter what path I specify, Visual Studio indicates that it cannot locate the module.

Can someone advise me on how to properly load external npm modules when utilizing the CommonJs compile option?

Attached is a screenshot: Visual Studio Output

Answer №1

To start, make sure to first download and install 'typings' by running the command: npm install typings --global

Next, navigate to the root directory of your project in the command line and use typings to install the '.d.ts' file for 'winston':

typings install winston --source dt --save --global

Once installed, the typings file for 'winston' can be found in the typings/global/winston folder of your project. Remember to add this reference at the beginning of your 'app.js' file:

/// <reference path="typings/globals/winston/index.d.ts"/>

You are now ready to utilize the winston logger within your application like so:

var winston = require('winston');

winston.level = 'debug';
winston.debug('Debug messages will now appear in the console using the default logger.');

If you also added the 'fs-extra' npm package to your project, follow the same process to include its typings. A screenshot showcasing the updated project is available below:

View Visual Studio Screenshot

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