openui-forge-csharplisted

# OpenUI Forge — C# Build generative UI apps with a React frontend + C# backend. Streams OpenAI API responses directly via an ASP.NET Core Minimal API (.NET 10 LTS) using `HttpClient`. ## Activation Triggers - "openui csharp", "openui c#", "openui dotnet", "openui aspnet" - "generative ui csharp", "c# streaming ui backend", "asp.net core openui" ## Prerequisites - Node.js >= 22 (24 LTS recommended) + React >= 18.3.1 (19+ recommended) (frontend) - .NET SDK 10.0 (backend; .NET 10 is the current LTS, supported until Nov 2028. .NET 8 LTS also works but reaches end of support Nov 2026.) - `OPENAI_API_KEY` environment variable set ## Quick Start 1. Create the React frontend and install OpenUI deps: ```bash npm install @openuidev/react-ui @openuidev/react-headless @openuidev/react-lang lucide-react zod ``` 2. Generate the system prompt: ```bash npx @openuidev/cli generate ./src/lib/library.ts --out backend/system-prompt.txt ``` 3. Create the C# backend (see Full Code below) 4. Run: `dotnet run` on `:5000`, frontend on `:3000` ## Full Code ### Backend: `backend/openui-backend.csproj` ```xml <Project Sdk="Microsoft.NET.Sdk.Web"> <PropertyGroup> <TargetFramework>net10.0</TargetFramework> <Nullable>enable</Nullable> <ImplicitUsings>enable</ImplicitUsings> </PropertyGroup> </Project> ``` > No NuGet packages required. ASP.NET Core, `HttpClient`/`IHttpClientFactory`, and `System.Text.Json` all ship in the .NET 10 shared framework referenced by `Microsoft.NET.Sdk.