base on An advanced, composable, functional reactive model-view-viewmodel framework for all .NET platforms that is inspired by functional reactive programming. ReactiveUI allows you to abstract mutable state away from your user interfaces, express the idea around a feature in one readable place and improve the testability of your application.  [](https://codecov.io/gh/reactiveui/ReactiveUI) [](https://reactiveui.net/contribute) [](https://reactiveui.net/slack) <br> <a href="https://github.com/reactiveui/reactiveui"> <img width="160" heigth="160" src="https://raw.githubusercontent.com/reactiveui/styleguide/master/logo/main.png"> </a> <br> # What is ReactiveUI? [ReactiveUI](https://reactiveui.net/) is a composable, cross-platform model-view-viewmodel framework for all .NET platforms that is inspired by functional reactive programming, which is a paradigm that allows you to [abstract mutable state away from your user interfaces and express the idea around a feature in one readable place](https://www.youtube.com/watch?v=3HwEytvngXk) and improve the testability of your application. [🔨 Get Started](https://reactiveui.net/docs/getting-started/) [🛍 Install Packages](https://reactiveui.net/docs/getting-started/installation/) [🎞 Watch Videos](https://reactiveui.net/docs/resources/videos) [🎓 View Samples](https://reactiveui.net/docs/resources/samples/) [🎤 Discuss ReactiveUI](https://reactiveui.net/slack) ## Book There has been an excellent [book](https://kent-boogaart.com/you-i-and-reactiveui/) written by our Alumni maintainer Kent Boogart. ## NuGet Packages Install the following packages to start building your own ReactiveUI app. <b>Note:</b> some of the platform-specific packages are required. This means your app won't perform as expected until you install the packages properly. See the <a href="https://reactiveui.net/docs/getting-started/installation/">Installation</a> docs page for more info. | Platform | ReactiveUI Package | NuGet | | ----------------- | ----------------------------------- | ---------------------- | | .NET Standard | [ReactiveUI][CoreDoc] | [![CoreBadge]][Core] | | | [ReactiveUI.Fody][FodyDoc] | [![FodyBadge]][Fody] | | Unit Testing | [ReactiveUI.Testing][TestDoc] | [![TestBadge]][Test] | | WPF | [ReactiveUI.WPF][WpfDoc] | [![WpfBadge]][Wpf] | | UWP | [ReactiveUI.Uwp][UwpDoc] | [![UwpBadge]][Uwp] | | WinUI | [ReactiveUI.WinUI][WinUiDoc] | [![WinUiBadge]][WinUi] | | MAUI | [ReactiveUI.Maui][MauiDoc] | [![MauiBadge]][Maui] | | Windows Forms | [ReactiveUI.WinForms][WinDoc] | [![WinBadge]][Win] | | Xamarin.Forms | [ReactiveUI.XamForms][XamDoc] | [![XamBadge]][Xam] | | Xamarin.Essentials| [ReactiveUI][XamDoc] | [![CoreBadge]][Core] | | AndroidX (Xamarin)| [ReactiveUI.AndroidX][DroDoc] | [![DroXBadge]][DroX] | | Xamarin.Android | [ReactiveUI.AndroidSupport][DroDoc] | [![DroBadge]][Dro] | | Xamarin.iOS | [ReactiveUI][IosDoc] | [![CoreBadge]][Core] | | Xamarin.Mac | [ReactiveUI][MacDoc] | [![CoreBadge]][Core] | | Tizen | [ReactiveUI][CoreDoc] | [![CoreBadge]][Core] | | Blazor | [ReactiveUI.Blazor][BlazDoc] | [![BlazBadge]][Blaz] | | Platform Uno | [ReactiveUI.Uno][UnoDoc] | [![UnoBadge]][Uno] | | Platform Uno | [ReactiveUI.Uno.WinUI][UnoWinUiDoc] | [![UnoWinUiBadge]][UnoWinUi] | | Avalonia | [Avalonia.ReactiveUI][AvaDoc] | [![AvaBadge]][Ava] | | Any | [ReactiveUI.Validation][ValDocs] | [![ValBadge]][ValCore] | [Core]: https://www.nuget.org/packages/ReactiveUI/ [CoreBadge]: https://img.shields.io/nuget/v/ReactiveUI.svg [CoreDoc]: https://reactiveui.net/docs/getting-started/installation/ [Fody]: https://www.nuget.org/packages/ReactiveUI.Fody/ [FodyDoc]: https://reactiveui.net/docs/handbook/view-models/boilerplate-code [FodyBadge]: https://img.shields.io/nuget/v/ReactiveUI.Fody.svg [Test]: https://www.nuget.org/packages/ReactiveUI.Testing/ [TestBadge]: https://img.shields.io/nuget/v/ReactiveUI.Testing.svg [TestDoc]: https://reactiveui.net/docs/handbook/testing/ [Wpf]: https://www.nuget.org/packages/ReactiveUI.WPF/ [WpfBadge]: https://img.shields.io/nuget/v/ReactiveUI.WPF.svg [WpfDoc]: https://reactiveui.net/docs/getting-started/installation/windows-presentation-foundation [Uwp]: https://www.nuget.org/packages/ReactiveUI.Uwp/ [UwpBadge]: https://img.shields.io/nuget/v/ReactiveUI.Uwp.svg [UwpDoc]: https://reactiveui.net/docs/getting-started/installation/universal-windows-platform [WinUi]: https://www.nuget.org/packages/ReactiveUI.WinUI/ [WinUiBadge]: https://img.shields.io/nuget/v/ReactiveUI.WinUI.svg [WinUiDoc]: https://reactiveui.net/docs/getting-started/installation/universal-windows-platform [Maui]: https://www.nuget.org/packages/ReactiveUI.Maui/ [MauiBadge]: https://img.shields.io/nuget/v/ReactiveUI.Maui.svg [MauiDoc]: https://blog.jetbrains.com/dotnet/2020/09/18/xamarin-maui-and-the-reactive-mvvm-between-them-webinar-recording/ [Win]: https://www.nuget.org/packages/ReactiveUI.WinForms/ [WinEvents]: https://www.nuget.org/packages/ReactiveUI.Events.WinForms/ [WinBadge]: https://img.shields.io/nuget/v/ReactiveUI.WinForms.svg [WinDoc]: https://reactiveui.net/docs/getting-started/installation/windows-forms [Xam]: https://www.nuget.org/packages/ReactiveUI.XamForms/ [XamEvents]: https://www.nuget.org/packages/ReactiveUI.Events.XamForms/ [XamBadge]: https://img.shields.io/nuget/v/ReactiveUI.XamForms.svg [XamDoc]: https://reactiveui.net/docs/getting-started/installation/xamarin-forms [Dro]: https://www.nuget.org/packages/ReactiveUI.AndroidSupport/ [DroBadge]: https://img.shields.io/nuget/v/ReactiveUI.AndroidSupport.svg [DroDoc]: https://reactiveui.net/docs/getting-started/installation/xamarin-android [DroX]: https://www.nuget.org/packages/ReactiveUI.AndroidX/ [DroXBadge]: https://img.shields.io/nuget/v/ReactiveUI.AndroidX.svg [MacDoc]: https://reactiveui.net/docs/getting-started/installation/xamarin-mac [IosDoc]: https://reactiveui.net/docs/getting-started/installation/xamarin-ios [Uno]: https://www.nuget.org/packages/ReactiveUI.Uno/ [UnoBadge]: https://img.shields.io/nuget/v/ReactiveUI.Uno.svg [UnoDoc]: https://reactiveui.net/docs/getting-started/installation/uno-platform [UnoWinUi]: https://www.nuget.org/packages/ReactiveUI.Uno.WinUI/ [UnoWinUiBadge]: https://img.shields.io/nuget/v/ReactiveUI.Uno.WinUI.svg [UnoWinUiDoc]: https://reactiveui.net/docs/getting-started/installation/uno-platform [Blaz]: https://www.nuget.org/packages/ReactiveUI.Blazor/ [BlazBadge]: https://img.shields.io/nuget/v/ReactiveUI.Blazor.svg [BlazDoc]: https://www.reactiveui.net/blog/2020/07/article-blazor-compelling-example [Ava]: https://www.nuget.org/packages/Avalonia.ReactiveUI/ [AvaBadge]: https://img.shields.io/nuget/v/Avalonia.ReactiveUI.svg [AvaDoc]: https://reactiveui.net/docs/getting-started/installation/avalonia [EventsDocs]: https://reactiveui.net/docs/handbook/events/ [ValCore]: https://www.nuget.org/packages/ReactiveUI.Validation/ [ValBadge]: https://img.shields.io/nuget/v/ReactiveUI.Validation.svg [ValDocs]: https://reactiveui.net/docs/handbook/user-input-validation/ ## Sponsorship The core team members, ReactiveUI contributors and contributors in the ecosystem do this open-source work in their free time. If you use ReactiveUI, a serious task, and you'd like us to invest more time on it, please donate. This project increases your income/productivity too. It makes development and applications faster and it reduces the required bandwidth. [Become a sponsor](https://github.com/sponsors/reactivemarbles). This is how we use the donations: * Allow the core team to work on ReactiveUI * Thank contributors if they invested a large amount of time in contributing * Support projects in the ecosystem ## Support If you have a question, please see if any discussions in our [GitHub issues](https://github.com/reactiveui/ReactiveUI/issues) or [Stack Overflow](https://stackoverflow.com/questions/tagged/reactiveui) have already answered it. If you want to discuss something or just need help, here is our [Slack room](https://reactiveui.net/slack), where there are always individuals looking to help out! Please do not open GitHub issues for support requests. ## Contribute ReactiveUI is developed under an OSI-approved open source license, making it freely usable and distributable, even for commercial use. If you want to submit pull requests please first open a [GitHub issue](https://github.com/reactiveui/ReactiveUI/issues/new/choose) to discuss. We are first time PR contributors friendly. See [Contribution Guidelines](https://www.reactiveui.net/contribute/) for further information how to contribute changes. ## Core Team <table> <tbody> <tr> <td align="center" valign="top" width="105"> <img width="100" height="100" src="https://github.com/glennawatson.png?s=150"> <br> <a href="https://github.com/glennawatson">Glenn Watson</a> <p>Melbourne, Australia</p> </td> <td align="center" valign="top" width="105"> <img width="100" height="100" src="https://github.com/chrispulman.png?s=150"> <br> <a href="https://github.com/chrispulman">Chris Pulman</a> <p>United Kingdom</p> </td> </tr> <tr> <td align="center" valign="top" width="105"> <img width="100" height="100" src="https://github.com/rlittlesii.png?s=150"> <br> <a href="https://github.com/rlittlesii">Rodney Littles II</a> <p>Texas, USA</p> </td> <td align="center" valign="top" width="105"> <img width="100" height="100" src="https://github.com/cabauman.png?s=150"> <br> <a href="https://github.com/cabauman">Colt Bauman</a> <p>South Korea</p> </td> </tr> </tbody> </table> ## Alumni Core Team The following have been core team members in the past. <table> <tbody> <tr> <td align="center" valign="top" width="105"> <img width="100" height="100" src="https://github.com/ghuntley.png?s=150"> <br> <a href="https://github.com/ghuntley">Geoffrey Huntley</a> <p>Sydney, Australia</p> </td> <td align="center" valign="top" width="105"> <img width="100" height="100" src="https://github.com/kentcb.png?s=150"> <br> <a href="https://github.com/kentcb">Kent Boogaart</a> <p>Brisbane, Australia</p> </td> <td align="center" valign="top" width="105"> <img width="100" height="100" src="https://github.com/olevett.png?s=150"> <br> <a href="https://github.com/olevett">Olly Levett</a> <p>London, United Kingdom</p> </td> </tr> <tr> <td align="center" valign="top" width="105"> <img width="100" height="100" src="https://github.com/anaisbetts.png?s=150"> <br> <a href="https://github.com/anaisbetts">Anaïs Betts</a> <p>San Francisco, USA</p> </td> <td align="center" valign="top" width="105"> <img width="100" height="100" src="https://github.com/shiftkey.png?s=150"> <br> <a href="https://github.com/shiftkey">Brendan Forster</a> <p>Melbourne, Australia</p> </td> <td align="center" valign="top" width="105"> <img width="100" height="100" src="https://github.com/clairernovotny.png?s=150"> <br> <a href="https://github.com/clairernovotny">Claire Novotny</a> <p>New York, USA</p> </td> </tr> <tr> <td align="center" valign="top" width="105"> <img width="100" height="100" src="https://github.com/worldbeater.png?s=150"> <br> <a href="https://github.com/worldbeater">Artyom Gorchakov</a> <p>Moscow, Russia</p> </td> </tr> </tbody> </table> ## .NET Foundation ReactiveUI is part of the [.NET Foundation](https://www.dotnetfoundation.org/). Other projects that are associated with the foundation include the Microsoft .NET Compiler Platform ("Roslyn") as well as the Microsoft ASP.NET family of projects, Microsoft .NET Core & Xamarin Forms. ", Assign "at most 3 tags" to the expected json: {"id":"2891","tags":[]} "only from the tags list I provide: [{"id":77,"name":"3d"},{"id":89,"name":"agent"},{"id":17,"name":"ai"},{"id":54,"name":"algorithm"},{"id":24,"name":"api"},{"id":44,"name":"authentication"},{"id":3,"name":"aws"},{"id":27,"name":"backend"},{"id":60,"name":"benchmark"},{"id":72,"name":"best-practices"},{"id":39,"name":"bitcoin"},{"id":37,"name":"blockchain"},{"id":1,"name":"blog"},{"id":45,"name":"bundler"},{"id":58,"name":"cache"},{"id":21,"name":"chat"},{"id":49,"name":"cicd"},{"id":4,"name":"cli"},{"id":64,"name":"cloud-native"},{"id":48,"name":"cms"},{"id":61,"name":"compiler"},{"id":68,"name":"containerization"},{"id":92,"name":"crm"},{"id":34,"name":"data"},{"id":47,"name":"database"},{"id":8,"name":"declarative-gui "},{"id":9,"name":"deploy-tool"},{"id":53,"name":"desktop-app"},{"id":6,"name":"dev-exp-lib"},{"id":59,"name":"dev-tool"},{"id":13,"name":"ecommerce"},{"id":26,"name":"editor"},{"id":66,"name":"emulator"},{"id":62,"name":"filesystem"},{"id":80,"name":"finance"},{"id":15,"name":"firmware"},{"id":73,"name":"for-fun"},{"id":2,"name":"framework"},{"id":11,"name":"frontend"},{"id":22,"name":"game"},{"id":81,"name":"game-engine "},{"id":23,"name":"graphql"},{"id":84,"name":"gui"},{"id":91,"name":"http"},{"id":5,"name":"http-client"},{"id":51,"name":"iac"},{"id":30,"name":"ide"},{"id":78,"name":"iot"},{"id":40,"name":"json"},{"id":83,"name":"julian"},{"id":38,"name":"k8s"},{"id":31,"name":"language"},{"id":10,"name":"learning-resource"},{"id":33,"name":"lib"},{"id":41,"name":"linter"},{"id":28,"name":"lms"},{"id":16,"name":"logging"},{"id":76,"name":"low-code"},{"id":90,"name":"message-queue"},{"id":42,"name":"mobile-app"},{"id":18,"name":"monitoring"},{"id":36,"name":"networking"},{"id":7,"name":"node-version"},{"id":55,"name":"nosql"},{"id":57,"name":"observability"},{"id":46,"name":"orm"},{"id":52,"name":"os"},{"id":14,"name":"parser"},{"id":74,"name":"react"},{"id":82,"name":"real-time"},{"id":56,"name":"robot"},{"id":65,"name":"runtime"},{"id":32,"name":"sdk"},{"id":71,"name":"search"},{"id":63,"name":"secrets"},{"id":25,"name":"security"},{"id":85,"name":"server"},{"id":86,"name":"serverless"},{"id":70,"name":"storage"},{"id":75,"name":"system-design"},{"id":79,"name":"terminal"},{"id":29,"name":"testing"},{"id":12,"name":"ui"},{"id":50,"name":"ux"},{"id":88,"name":"video"},{"id":20,"name":"web-app"},{"id":35,"name":"web-server"},{"id":43,"name":"webassembly"},{"id":69,"name":"workflow"},{"id":87,"name":"yaml"}]" returns me the "expected json"