Creating an Azure Functions App using VS Code

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Download and run the Core Tools installer, based on your version of Windows:

Download Visual Studio Code - Mac, Linux, Windows
Visual Studio Code is free and available on your favorite platform - Linux, macOS, and Windows. Download Visual Studio Code to experience a redefined code editor, optimized for building and debugging modern web and cloud applications.

https://nodejs.org/dist/v12.18.0/

http://localhost:7071/api/Test

http://localhost:7071/api/Test?name=Mutti

Sources:

Install the Azure Functions Core Tools
Easy steps to install the Azure Functions Core Tools in Windows 10 that powers Azure Functions runtime that you can run on your local development computer.
Create a C# function using Visual Studio Code - Azure Functions
Learn how to create a C# function, then publish the local project to serverless hosting in Azure Functions using the Azure Functions extension in Visual Studio Code.
Introduction to Azure Functions + Vscode
Introduction to serverless using vscode to develop functions to Microsoft Azure