This video explains steps to use TypeScript in a Node.js application.
You can read step by step article on the same here – here
Download source code from here
To start with create a folder and run npm init command inside the folder. After that install these dependencies,
- npm install -D typescript
- npm install -D tslint
- npm install express -S
- npm install @types/express -D
To follow steps read article here
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Dhananjay Kumar 
I am working on Typescript with asp.net web application(.net framework) but whenever I install request using any method (npm i request, nuget Package…) all other files d.ts gets errors (like bool not define etc…) I want the app to interact with DB for getting data and process and save it to DB again. I am using studio 2017. Can you guide me how to install request without Errors? that will be great if you can send me a small project say login.
Help in this regard will be highly appreciated.
Regards,
Nishant Vyas
Why does every article on using TypeScript in node assume I’m going to be building a web server? I just want to be able to build little command-line utilities to automate common tasks.
That is true. Let me create one video creating the command line tool