- Article
The ASP.NET Core with Angular project template provides a convenient starting point for ASP.NET Core apps using Angular and the Angular CLI to implement a rich, client-side user interface (UI).
The project template is equivalent to creating both an ASP.NET Core project to act as a web API and an Angular CLI project to act as a UI. This project combination offers the convenience of hosting both projects in a single ASP.NET Core project that can be built and published as a single unit.
The project template isn't meant for server-side rendering (SSR).
Create a new app
Create a new project from a command prompt using the command dotnet new angular in an empty directory. For example, the following commands create the app in a my-new-app directory and switch to that directory:
dotnet new angular -o my-new-appcd my-new-appRun the app from either Visual Studio or the .NET Core CLI:
- Visual Studio
- .NET Core CLI
Open the generated .csproj file, and run the app as normal from there.
The build process restores npm dependencies on the first run, which can take several minutes. Subsequent builds are much faster.
The project template creates an ASP.NET Core app and an Angular app. The ASP.NET Core app is intended to be used for data access, authorization, and other server-side concerns. The Angular app, residing in the ClientApp subdirectory, is intended to be used for all UI concerns.
Add pages, images, styles, and modules
The ClientApp directory contains a standard Angular CLI app. See the official Angular documentation for more information.
There are slight differences between the Angular app created by this template and the one created by Angular CLI itself (via ng new); however, the app's capabilities are unchanged. The app created by the template contains a Bootstrap-based layout and a basic routing example.
Run ng commands
In a command prompt, switch to the ClientApp subdirectory:
cd ClientAppIf you have the ng tool installed globally, you can run any of its commands. For example, you can run ng lint, ng test, or any of the other Angular CLI commands. There's no need to run ng serve though, because your ASP.NET Core app deals with serving both server-side and client-side parts of your app. Internally, it uses ng serve in development.
If you don't have the ng tool installed, run npm run ng instead. For example, you can run npm run ng lint or npm run ng test.
Install npm packages
To install third-party npm packages, use a command prompt in the ClientApp subdirectory. For example:
cd ClientAppnpm install <package_name>Publish and deploy
In development, the app runs in a mode optimized for developer convenience. For example, JavaScript bundles include source maps (so that when debugging, you can see your original TypeScript code). The app watches for TypeScript, HTML, and CSS file changes on disk and automatically recompiles and reloads when it sees those files change.
In production, serve a version of your app that's optimized for performance. This is configured to happen automatically. When you publish, the build configuration emits a minified, ahead-of-time (AoT) compiled build of your client-side code. Unlike the development build, the production build doesn't require Node.js to be installed on the server (unless you have enabled server-side rendering (SSR)).
You can use standard ASP.NET Core hosting and deployment methods.
Run "ng serve" independently
The project is configured to start its own instance of the Angular CLI server in the background when the ASP.NET Core app starts in development mode. This is convenient because you don't have to run a separate server manually.
There's a drawback to this default setup. Each time you modify your C# code and your ASP.NET Core app needs to restart, the Angular CLI server restarts. Around 10 seconds is required to start back up. If you're making frequent C# code edits and don't want to wait for Angular CLI to restart, run the Angular CLI server externally, independently of the ASP.NET Core process.
To run the Angular CLI server externally, switch to the ClientApp subdirectory in a command prompt and launch the Angular CLI development server:
cd ClientAppnpm startWhen you start your ASP.NET Core app, it won't launch an Angular CLI server. The instance you started manually is used instead. This enables it to start and restart faster. It's no longer waiting for Angular CLI to rebuild your client app each time.
When the proxy is launched, the target URL and port is inferred from the environment variables set by .NET, ASPNETCORE_URLS and ASPNETCORE_HTTPS_PORT. To set the URLs or HTTPS port, use one of the environment variables or change the value in proxy.conf.json.
Configure proxy middleware for SignalR
For more information, see http-proxy-middleware.
Additional resources
- Introduction to authentication for Single Page Apps on ASP.NET Core
The updated Angular project template provides a convenient starting point for ASP.NET Core apps using Angular and the Angular CLI to implement a rich, client-side user interface (UI).
The template is equivalent to creating an ASP.NET Core project to act as an API backend and an Angular CLI project to act as a UI. The template offers the convenience of hosting both project types in a single app project. Consequently, the app project can be built and published as a single unit.
Create a new app
Create a new project from a command prompt using the command dotnet new angular in an empty directory. For example, the following commands create the app in a my-new-app directory and switch to that directory:
dotnet new angular -o my-new-appcd my-new-appRun the app from either Visual Studio or the .NET Core CLI:
- Visual Studio
- .NET Core CLI
Open the generated .csproj file, and run the app as normal from there.
The build process restores npm dependencies on the first run, which can take several minutes. Subsequent builds are much faster.
The project template creates an ASP.NET Core app and an Angular app. The ASP.NET Core app is intended to be used for data access, authorization, and other server-side concerns. The Angular app, residing in the ClientApp subdirectory, is intended to be used for all UI concerns.
Add pages, images, styles, and modules
The ClientApp directory contains a standard Angular CLI app. See the official Angular documentation for more information.
There are slight differences between the Angular app created by this template and the one created by Angular CLI itself (via ng new); however, the app's capabilities are unchanged. The app created by the template contains a Bootstrap-based layout and a basic routing example.
Run ng commands
In a command prompt, switch to the ClientApp subdirectory:
cd ClientAppIf you have the ng tool installed globally, you can run any of its commands. For example, you can run ng lint, ng test, or any of the other Angular CLI commands. There's no need to run ng serve though, because your ASP.NET Core app deals with serving both server-side and client-side parts of your app. Internally, it uses ng serve in development.
If you don't have the ng tool installed, run npm run ng instead. For example, you can run npm run ng lint or npm run ng test.
Install npm packages
To install third-party npm packages, use a command prompt in the ClientApp subdirectory. For example:
cd ClientAppnpm install --save <package_name>Publish and deploy
In development, the app runs in a mode optimized for developer convenience. For example, JavaScript bundles include source maps (so that when debugging, you can see your original TypeScript code). The app watches for TypeScript, HTML, and CSS file changes on disk and automatically recompiles and reloads when it sees those files change.
In production, serve a version of your app that's optimized for performance. This is configured to happen automatically. When you publish, the build configuration emits a minified, ahead-of-time (AoT) compiled build of your client-side code. Unlike the development build, the production build doesn't require Node.js to be installed on the server (unless you have enabled server-side rendering (SSR)).
You can use standard ASP.NET Core hosting and deployment methods.
Run "ng serve" independently
The project is configured to start its own instance of the Angular CLI server in the background when the ASP.NET Core app starts in development mode. This is convenient because you don't have to run a separate server manually.
There's a drawback to this default setup. Each time you modify your C# code and your ASP.NET Core app needs to restart, the Angular CLI server restarts. Around 10 seconds is required to start back up. If you're making frequent C# code edits and don't want to wait for Angular CLI to restart, run the Angular CLI server externally, independently of the ASP.NET Core process. To do so:
In a command prompt, switch to the
ClientAppsubdirectory, and launch the Angular CLI development server:(Video) Angular + ASP.NET Core + SQL Server | Simply Explainedcd ClientAppnpm startImportant
Use
npm startto launch the Angular CLI development server, notng serve, so that the configuration inpackage.jsonis respected. To pass additional parameters to the Angular CLI server, add them to the relevantscriptsline in yourpackage.jsonfile.Modify your ASP.NET Core app to use the external Angular CLI instance instead of launching one of its own. In your Startup class, replace the
spa.UseAngularCliServerinvocation with the following:spa.UseProxyToSpaDevelopmentServer("http://localhost:4200");
When you start your ASP.NET Core app, it won't launch an Angular CLI server. The instance you started manually is used instead. This enables it to start and restart faster. It's no longer waiting for Angular CLI to rebuild your client app each time.
When the proxy is launched, the target URL and port is inferred from the environment variables set by .NET, ASPNETCORE_URLS and ASPNETCORE_HTTPS_PORT. To set the URLs or HTTPS port, use one of the environment variables or change the value in proxy.conf.json.
Pass data from .NET code into TypeScript code
During SSR, you might want to pass per-request data from your ASP.NET Core app into your Angular app. For example, you could pass cookie information or something read from a database. To do this, edit your Startup class. In the callback for UseSpaPrerendering, set a value for options.SupplyData such as the following:
options.SupplyData = (context, data) =>{ // Creates a new value called isHttpsRequest that's passed to TypeScript code data["isHttpsRequest"] = context.Request.IsHttps;};The SupplyData callback lets you pass arbitrary, per-request, JSON-serializable data (for example, strings, booleans, or numbers). Your main.server.ts code receives this as params.data. For example, the preceding code sample passes a boolean value as params.data.isHttpsRequest into the createServerRenderer callback. You can pass this to other parts of your app in any way supported by Angular. For example, see how main.server.ts passes the BASE_URL value to any component whose constructor is declared to receive it.
Drawbacks of SSR
Not all apps benefit from SSR. The primary benefit is perceived performance. Visitors reaching your app over a slow network connection or on slow mobile devices see the initial UI quickly, even if it takes a while to fetch or parse the JavaScript bundles. However, many SPAs are mainly used over fast, internal company networks on fast computers where the app appears almost instantly.
At the same time, there are significant drawbacks to enabling SSR. It adds complexity to your development process. Your code must run in two different environments: client-side and server-side (in a Node.js environment invoked from ASP.NET Core). Here are some things to bear in mind:
- SSR requires a Node.js installation on your production servers. This is automatically the case for some deployment scenarios, such as Azure App Services, but not for others, such as Azure Service Fabric.
- Enabling the
BuildServerSideRendererbuild flag causes your node_modules directory to publish. This folder contains 20,000+ files, which increases deployment time. - To run your code in a Node.js environment, it can't rely on the existence of browser-specific JavaScript APIs such as
windoworlocalStorage. If your code (or some third-party library you reference) tries to use these APIs, you'll get an error during SSR. For example, don't use jQuery because it references browser-specific APIs in many places. To prevent errors, you must either avoid SSR or avoid browser-specific APIs or libraries. You can wrap any calls to such APIs in checks to ensure they aren't invoked during SSR. For example, use a check such as the following in JavaScript or TypeScript code:
if (typeof window !== 'undefined') { // Call browser-specific APIs here}Configure proxy middleware for SignalR
For more information, see http-proxy-middleware.
Additional resources
- Introduction to authentication for Single Page Apps on ASP.NET Core
FAQs
Use Angular with ASP.NET Core? ›
The updated Angular project template provides a convenient starting point for ASP.NET Core apps using Angular and the Angular CLI to implement a rich, client-side user interface (UI). The template is equivalent to creating an ASP.NET Core project to act as an API backend and an Angular CLI project to act as a UI.
Can we use Angular with ASP.NET Core? ›The updated Angular project template provides a convenient starting point for ASP.NET Core apps using Angular and the Angular CLI to implement a rich, client-side user interface (UI). The template is equivalent to creating an ASP.NET Core project to act as an API backend and an Angular CLI project to act as a UI.
Can I use Angular with C#? ›Using Angular Development with C#
They are both easy to use and have great communities and support. Consider this effective combination for your next web development project.
- Create Angular App.
- Adding Services.
- Adding Components.
- Adding Bootstrap.
- Register modules.
- Add Routing.
- Navigating menus for routing.
- Adding component codes.
We ended up going with an Angular front-end and an ASP.NET Core API backend, using Azure SQL. We tested Core Razor and, although better than legacy Razor, Angular was much faster for us in the end. As far as user experience goes, Angular (or React) is far superior in terms of performance.
Which frontend framework is best for ASP.NET Core? ›The most popular front-end framework for ASP.NET Core is Bootstrap. It provides a wide range of components and features that can help you create beautiful, well-structured responsive web applications. Additionally, it is highly extensible, making it easy to customize and add features to suit your specific needs.
Is ASP.NET Core still used? ›ASP.NET (including all its versions) remains one of the internet's most searched server-side web application frameworks. It is still widely used by developers and remains a top open-source framework on GitHub.
Is Angular getting outdated? ›Fortunately for the world, the news of Angular's death is just a misunderstanding. The technology continues to thrive and stands firmly on its feet. Fears that the framework is shutting down are only a mistake. The sad demise of its forerunner, AngularJS.
Why use Angular with asp net? ›Single-page applications, and Angular in particular, are constantly being updated with more and more presentation libraries and extensions compared to ASP.NET MVC. Angular provides robust extensibility and customization and has deep community support that is continually growing.
Does anyone use Angular anymore? ›Angular is a popular and widely-used JavaScript framework for building web applications. It is maintained by Google and has a large and active community of developers. One of the main benefits of using Angular is that it provides a structure for building web applications.
How to call Web API in .NET core C#? ›
- Create the Console Application.
- Install the Web API Client Libraries.
- Add a Model Class.
- Create and Initialize HttpClient.
- Send a GET request to retrieve a resource.
- Sending a POST Request to Create a Resource.
- Sending a PUT Request to Update a Resource.
- Configure the app to serve static files and enable default file mapping. ...
- Create a wwwroot folder in the project root.
- Create a css folder inside of the wwwroot folder.
- Create a js folder inside of the wwwroot folder.
- Add an HTML file named index.html to the wwwroot folder.
- RestClient client = new RestClient("http://localhost:58179/api/");
- RestRequest request = new RestRequest("Default", Method. GET);
- IRestResponse<List<string>> response = client. Execute<List<string>>(request);
- RestRequest request = new RestRequest("Default", Method. POST);
- Limited support for older libraries: . NET Core does not support all of the libraries that are available in the full . ...
- Limited support for older platforms: . NET Core may not be compatible with older platforms, so you may need to use the full . ...
- Learning curve: . ...
- Smaller community: .
Angular is written in TypeScript. It's the recommended language for creating apps with Angular.
Is ASP.NET Core better than node js? ›Both the technologies have benefits and limitations, and choosing one depends largely on your project. ASP.NET is preferred by developers and enterprises for larger applications, whereas Node. js. is more suitable for fast, lightweight software and mobile applications.
Is ASP.NET Core MVC outdated? ›Is Asp.net Mvc Outdated In 2022? Unfortunately, ASP.NET MVC is no longer in active development, so the ASP.NET MVC framework won't get further updates and improvements. The last update of ASP.NET MVC (version 5.2. 7) was released three years ago, in November 2018.
Is ASP.NET Core a backend or front end? ›As for example, ASP.NET is used as backend and C# & VB.NET are used for frontend development.
Which architecture is best for .NET Core? ›ASP.NET Core's built-in use of and support for dependency injection makes this architecture the most appropriate way to structure non-trivial monolithic applications. For monolithic applications, the Application Core, Infrastructure, and UI projects are all run as a single application.
Is .NET Core being replaced? ›The long-term-support (LTS) version 3.1 of Microsoft . NET Core Framework is slated to go out of support on December 13th, 2022.
Does ASP.NET Core have a future? ›
ASP.NET Will Continue To Receive Support From Microsoft
The one thing developers tend to fear when using ASP.NET is that Microsoft will stop supporting it. However, this has yet to be the case. In fact, Microsoft recently announced that they would continue supporting ASP.NET throughout 2023 and beyond.
NET Core 7.0 and 8.0 versions are scheduled to be released in the November of 2022 and 2023 respectively. Meanwhile, the older system continues to receive smaller updates on a need basis. This has assisted the . net development services to stay on top of their game.
Why use Angular in 2023? ›Some of the pros of using Angular include: Robustness: It provides a robust and comprehensive set of features that enable developers to build scalable and maintainable applications. Its modular architecture allows for easy organization and reusability of code, making it suitable for large-scale applications.
Is Angular worth learning 2023? ›Angular is a powerful JavaScript framework used to create dynamic web applications. It has been around since 2009 and has been gaining popularity ever since. In 2023, learning Angular will be even more beneficial as it will become the standard for developing modern web applications.
Does Netflix use Angular? ›The biggest global companies using Angular are: Google. Microsoft. Netflix.
Is Blazor better than Angular? ›While Angular is a fully functional development framework, Blazor is still being improved and enhanced. Angular, but not Blazor server-side, supports PWAs. In Blazor, there is no scoped style for components. Blazor is currently supported by the language server in VSCode, however, Angular's tools are more sophisticated.
Why Angular is better than Django? ›Generally speaking, Django is better suited for backend development, while Angular is better for front-end development. However, both frameworks have features to create a powerful web experience. Ultimately, it comes down to which framework best fits your project's requirements.
Why do we need PWA in Angular? ›PWA caches the application and renders it from local cache. It regularly checks the live version of the application and then caches the latest version in the background. PWA can be installed in the system like native application and shortcut can be shown in the desktop.
Why is Angular losing popularity? ›It's mainly because of Angular's unpopularity due to Angular 1.0, where developers had dismissed the framework as too complicated since it required a lot of time for learning. Although, Angular is developed by Google which provides constant improvements and long-term support for the framework.
Why no one uses Angular? ›On the other hand, Angular's capabilities have been questioned due to new frameworks. In most cases, SEO support, the size of the framework, updates, and the learning curve are the general concerns that people have about Angular.
What is the difference between ASP.NET Core and ASP NET Web API? ›
In ASP.NET Core, there's no longer any distinction between MVC and Web APIs. There's only ASP.NET Core, which includes support for view-based scenarios, API endpoints, Razor Pages, health checks, SignalR, and more. In addition to being consistent and unified within ASP.NET Core, APIs built in .
Does .NET Core support Web API? ›ASP.NET Core supports creating web APIs using controllers or using minimal APIs. Controllers in a web API are classes that derive from ControllerBase. This article shows how to use controllers for handling web API requests.
How many requests can ASP.NET Core handle? ›ASP.NET Core apps should be designed to process many requests simultaneously. Asynchronous APIs allow a small pool of threads to handle thousands of concurrent requests by not waiting on blocking calls.
How to use JWT in .NET core? ›- Understanding JWT Authentication Workflow.
- Create Asp.net Core Web API project.
- Install NuGet Package (JwtBearer)
- Asp.net Core JWT appsetting.json configuration.
- Asp.net Core Startup.cs - configure services add JwtBearer.
- Create Models User, Tokens class.
- Prerequisites. . ...
- Install the . NET Core Hosting Bundle. ...
- Create the IIS site. On the IIS server, create a folder to contain the app's published folders and files. ...
- Create an ASP.NET Core Razor Pages app. ...
- Publish and deploy the app. ...
- Browse the website. ...
- Next steps. ...
- Additional resources.
It uses HTTP protocol to communicate between clients and websites to have data access. Asp.net Core web API is a cross-platform web API.
What is JWT token in .NET core? ›JSON Web Tokens (commonly known as JWT) is an open standard to pass data between client and server, and enables you to transmit data back and forth between the server and the consumers in a secure manner.
How to fetch data from API in dotnet core? ›- Define your PokeItem model. ...
- here will be aUsing Directive. ...
- Define your GetPokemon Method. ...
- Get the response, and data from the response. ...
- Log data to your console. ...
- Get Pokemon Method.
- Windows Forms and WPF applications are not supported – You still have to use Mono to make a . ...
- ASP.NET WebForms don't exist – Though Microsoft provides strategies for migrating ASP.NET Web Forms apps.
- You need to create a WCF service – . ...
- Missing 3rd-party library support – . ...
- Missing .
Starting with the December 2022 servicing update for Visual Studio 2019 16.11, Visual Studio 2019 17.0, and Visual Studio 2022 17.2, the . NET Core 3.1 component in Visual Studio will be changed to out of support and optional. This means that workloads in Visual Studio may be installed without installing .
Why not choose NET Core? ›
NET Core, developers face a major drawback — the platform cannot be used for the development of desktop applications. It can be used to develop cloud-based and server-side applications primarily. Comparing it with . NET Framework, the applications developed using this platform can be used on the web and desktop.
Which framework is better than Angular? ›React outperforms Angular due to its rendering optimizations and Virtual DOM implementation. Also, React developers can access many pre-built solutions for development.
What is the best database for Angular? ›MySQL for Angular Developers. One of the most widely used databases is MySQL. For so many years, it has been an excellent preference for web applications. MySQL is a relational database system that has proven to be a very convenient solution for web-based applications.
Which architecture is best for Angular? ›Component-based architecture is used by Angular to break down big applications into smaller, more manageable units. It is possible to utilize these components in any other portion of the program since they are reusable. This design makes Angular code very testable since each component can be tested on its own.
Why is ASP.NET Core so fast? ›NET Core is faster than . NET Framework because the architecture of . NET Core is written or restructured from scratch to make it a modular, lightweight, fast, and cross-platform Framework. The Applications require technologies like workflow, webforms or WCF that are not present in .
Is .NET Core in demand? ›High demand in the job market
NET developers are in high demand among startups and big tech companies alike. Employers are always seeking developers with expertise in . NET and C# since these technologies are now frequently used in enterprise-level applications.
ASP.NET Core is a cross-platform, high-performance, open-source framework for building modern, cloud-enabled, Internet-connected apps. With ASP.NET Core, you can: Build web apps and services, Internet of Things (IoT) apps, and mobile backends. Use your favorite development tools on Windows, macOS, and Linux.
What languages can you use with ASP.NET Core? ›C# / ASP.NET Core
Use your favorite development tools on Windows, macOS, and Linux. Deploy to the cloud or on-premises while using the languages that you know: HTML and JavaScript. Leverage the ASP.NET Razor syntax to inline C# directly in your views.
To start with an empty ASP.NET Core project and add a TypeScript frontend, see ASP.NET Core with TypeScript instead. In this tutorial, you begin with a simple project containing code for an ASP.NET Core MVC app. Open Visual Studio. Create a new project.
What languages does ASP.NET Core support? ›Languages. The runtime is designed to support multiple programming languages. C#, F#, and Visual Basic languages are supported by Microsoft and are designed in collaboration with the community. C# is a modern, object-oriented, and type-safe programming language.
What is the difference between React and Angular in .NET core? ›
React is a JavaScript library, whereas Angular is a TypeScript-based JavaScript framework. React uses one-way data binding and virtual DOM trees, whereas Angular uses two-way data binding and real DOM. Moreover, React is faster than Angular as it has a smaller bundle size.
Is ASP.NET Core deprecated? ›NET Core will be fully deprecated, but don't wait to start planning! Deprecation will sneak up on you sooner than you realize. If you spend a little time between now and end-of-life planning and executing, your migration will be nearly pain-free.
Is ASP.NET Core difficult? ›Make time to learn
It's really difficult to try and learn an entirely new language/framework under pressure. If you're required to deliver working software for your day job, trying to learn ASP.NET Core at the same time might be heaping too much pressure on yourself.
Angular is a modern framework built entirely in TypeScript, and as a result, using TypeScript with Angular provides a seamless experience.
Can you use TypeScript with C#? ›TypeScript is a popular choice for programmers accustomed to other languages with static typing, such as C# and Java. TypeScript's type system offers many of the same benefits, such as better code completion, earlier detection of errors, and clearer communication between parts of your program.
Do I need JavaScript for ASP.NET Core? ›ASP.NET requires the use of the client-side Javascript, as that's how ASP.NET handles its Events via PostBacks. Like I said though, this is the auto-generated Javscript that is done for you on-the-fly in temporary external . axd files.
Is .NET Core backend or frontend? ›. Net comprises both frontend and backend languages. As for example, ASP.NET is used as backend and C# & VB.NET are used for frontend development.
Is ASP.NET Core used for backend? ›ASP.NET Core is a free, open-source web framework developed by Microsoft. It provides features that enable building the backend for modern web applications, as well as web APIs.
Why use .NET Core over .NET Framework? ›NET Core is faster than . NET Framework because the architecture of . NET Core is written or restructured from scratch to make it a modular, lightweight, fast, and cross-platform Framework. The Applications require technologies like workflow, webforms or WCF that are not present in .
Should I use Angular or React with asp net? ›NET developers love Angular rather than React because it is a lot simpler to use, especially when you are not an expert in JavaScript. Angular uses TypeScript which is an extension of the JavaScript language that lets you write code with fewer lines of code and have fewer errors in your application.
Should .NET developer learn React or Angular? ›
React can be a better choice if you need more flexibility in the architecture of your code. Angular can be a better choice if you choose to adopt an architecture for the whole front end of your application.
Which is better for career Angular or React? ›React. js is the best choice if you are developing a single-page website. But if you are building a complex project, you should go for Angular. Because of Angular's massive number of constructed functions and React's smaller package size, the former has a steeper learning curve.