I used to be studying Gabby’s weblog submit concerning the new TypeScript/JavaScript venture expertise in Visible Studio 2022. It is best to learn the docs on JavaScript and TypeScript in Visible Studio 2022.
When you’re used to ASP.NET apps when you consider apps which are JavaScript heavy, “entrance finish apps” or TypeScript centered, it may be complicated as to “the place does .NET slot in?”
It is advisable to take into account the obligations of your varied initiatives or subsystems and the a number of completely legitimate methods you possibly can construct a web page or internet app. Let’s take into account only a few:
- An ASP.NET Internet app that renders HTML on the server however makes use of TS/JS
- This may increasingly have a Internet API, Razor Pages, with or with out the MVC sample.
- You possibly have simply added JavaScript by way of <script> tags
- Possibly you added a script minimizer/minifier job
- Will be complicated as a result of it may really feel like your app must ‘construct each the shopper and the server’ from one venture
- A principally JavaScript/TypeScript frontend app the place the HTML could possibly be served from any internet server (node, kestrel, static internet apps, nginx, and many others)
- This app could use Vue or React or Angular but it surely’s not an “ASP.NET app”
- It calls backend Internet APIs which may be served by ASP.NET, Azure Capabilities, third social gathering REST APIs, or the entire above
- This situation has typically been complicated for ASP.NET builders who could get confused about accountability. Who builds what, the place do issues find yourself, how do I construct and deploy this?
VS2022 brings JavaScript and TypeScript assist into VS with a full JavaScript Language Service primarily based on TS. It offers a TypeScript NuGet Package deal so you possibly can construct your complete app with MSBuild and VS will do the fitting factor.
NEW: Beginning in Visible Studio 2022, there’s a new JavaScript/TypeScript venture sort (.esproj) that lets you create standalone Angular, React, and Vue initiatives in Visible Studio.
The .esproj idea is nice for folk accustomed to Visible Studio as we all know {that a} Resolution accommodates a number of Tasks. Visible Studio manages recordsdata for a single software in a Undertaking. The venture contains supply code, assets, and configuration recordsdata. On this case we will have a .csproj for a backend Internet API and an .esproj that makes use of a shopper aspect template like Angular, React, or Vue.
Factor is, traditionally when Visible Studio supported Angular, React, or Vue, it is templates had been outdated and never up to date sufficient. VS2022 makes use of the native CLIs for these entrance ends, fixing that drawback with Angular CLI, Create React App, and Vue CLI.
If I’m in VS and go “File New Undertaking” there are Standalone templates that remedy Instance 2 above. I will choose JavaScript React.
Then I will click on “Add integration for Empty ASP.NET Internet API. This may give me a frontend with javascript able to name a ASP.NET Internet API backend. I will comply with alongside right here.
It then makes use of the React CLI to make the entrance finish, which once more, is cool because it’s no matter model I would like it to be.
Then I will add my ASP.NET Internet API backend to the identical answer, so now I’ve an esproj and a csproj like this
Now I’ve a pleasant clear two venture system – on this case extra JavaScript centered than .NET centered. This one makes use of npm to startup the venture utilizing their internet growth server and proxyMiddleware to proxy localhost:3000 calls over to the ASP.NET Internet API venture.
Here’s a React app served by npm calling over to the Climate service served from Kestrel on ASP.NET.

That is inverted than most ASP.NET People are used to, and that is OK. This reveals me that Visible Studio 2022 can assist both growth fashion, use the CLI that’s put in for no matter Frontend Framework, and permit me to decide on what internet server and internet browser (by way of Launch.json) I would like.
If you wish to flip it, and put ASP.NET Core as the first after which usher in some TypeScript/JavaScript, comply with this tutorial as a result of that is additionally potential!
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About Scott
Scott Hanselman is a former professor, former Chief Architect in finance, now speaker, marketing consultant, father, diabetic, and Microsoft worker. He’s a failed stand-up comedian, a cornrower, and a ebook writer.