Feature/OpenAI example

openai/.gitignore

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+bin/
+obj/
+*.sln.iml
+.idea/**/*
+**/.idea/*

openai/Apps/OpenAIExample.cs

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+using Ivy;
+using OpenAI.Chat;
+
+namespace OpenAIExample.Apps
+{
+    [App(icon: Icons.MessageCircle, title: "OpenAI Chat Demo")]
+    public class OpenAIExample : ViewBase
+    {
+        private readonly ChatClient _aiClient;
+
+        public OpenAIExample()
+        {
+            // Retrieve OpenAI API key from environment variable
+            var openAiKey = Environment.GetEnvironmentVariable("OPENAI_API_KEY");
+            if (string.IsNullOrWhiteSpace(openAiKey))
+                throw new InvalidOperationException("OPENAI_API_KEY environment variable is not set.");
+
+            const string Model = "gpt-4o-mini"; // recommended lightweight model
+
+            // Initialize OpenAI ChatClient
+            _aiClient = new ChatClient(Model, openAiKey);
+        }
+
+        public override object? Build()
+        {
+            // Initialize chat messages with a greeting from the assistant
+            var messages = UseState(ImmutableArray.Create<Ivy.ChatMessage>(
+                new Ivy.ChatMessage(ChatSender.Assistant, "Hello! I'm an OpenAI bot. How can I assist you!")
+            ));
+
+            async void HandleMessageAsync(Event<Chat, string> @event)
+            {
+                // Add user message
+                messages.Set(messages.Value.Add(new Ivy.ChatMessage(ChatSender.User, @event.Value)));
+
+                // Add assistant "Thinking..." status
+                var currentMessages = messages.Value;
+                messages.Set(currentMessages.Add(new Ivy.ChatMessage(ChatSender.Assistant, new ChatStatus("Thinking..."))));
+
+                try
+                {
+                    // Call OpenAI API
+                    ChatCompletion completion = await _aiClient.CompleteChatAsync(@event.Value);
+                    string aiResponse = completion.Content[0].Text;
+
+                    // Replace "Thinking..." with actual response
+                    messages.Set(currentMessages.Add(new Ivy.ChatMessage(ChatSender.Assistant, aiResponse)));
+                }
+                catch (Exception ex)
+                {
+                    messages.Set(currentMessages.Add(new Ivy.ChatMessage(ChatSender.Assistant, $"Error: {ex.Message}")));
+                }
+            }
+
+            return Layout.Center().Padding(0, 10, 0, 10)
+            | new Chat(messages.Value.ToArray(), HandleMessageAsync).Width(Size.Full().Max(200));
+        }
+    }
+}

openai/GlobalUsings.cs

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+global using Ivy;
+global using Ivy.Apps;
+global using Ivy.Auth;
+global using Ivy.Chrome;
+global using Ivy.Client;
+global using Ivy.Core;
+global using Ivy.Core.Hooks;
+global using Ivy.Helpers;
+global using Ivy.Hooks;
+global using Ivy.Shared;
+global using Ivy.Services;
+global using Ivy.Views;
+global using Ivy.Views.Alerts;
+global using Ivy.Views.Blades;
+global using Ivy.Views.Builders;
+global using Ivy.Views.Charts;
+global using Ivy.Views.Dashboards;
+global using Ivy.Views.Forms;
+global using Ivy.Views.Tables;
+global using Ivy.Widgets.Inputs;
+global using Microsoft.Extensions.Configuration;
+global using Microsoft.Extensions.DependencyInjection;
+global using Microsoft.Extensions.Logging;
+global using System.Collections.Immutable;
+global using System.ComponentModel.DataAnnotations;
+global using System.Globalization;
+global using System.Reactive.Linq;
+
+namespace OpenAIExample;

openai/OpenAIExample.csproj

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+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <OutputType>Exe</OutputType>
+    <TargetFramework>net9.0</TargetFramework>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+    <NoWarn>CS8618;CS8603;CS8602;CS8604;CS9113</NoWarn>
+    <RootNamespace>OpenAIExample</RootNamespace>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <EmbeddedResource Include="Assets/**/*" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <PackageReference Include="Ivy" Version="1.0.113.0" />
+    <PackageReference Include="OpenAI" Version="2.5.0" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <Folder Include="Apps" />
+  </ItemGroup>
+
+</Project>

openai/OpenAIExample.sln

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+
+Microsoft Visual Studio Solution File, Format Version 12.00
+# Visual Studio Version 17
+VisualStudioVersion = 17.14.36414.22 d17.14
+MinimumVisualStudioVersion = 10.0.40219.1
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "OpenAIExample", "OpenAIExample.csproj", "{EF960359-8B28-8AFB-5F46-5541F544614E}"
+EndProject
+Global
+	GlobalSection(SolutionConfigurationPlatforms) = preSolution
+		Debug|Any CPU = Debug|Any CPU
+		Release|Any CPU = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(ProjectConfigurationPlatforms) = postSolution
+		{EF960359-8B28-8AFB-5F46-5541F544614E}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{EF960359-8B28-8AFB-5F46-5541F544614E}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{EF960359-8B28-8AFB-5F46-5541F544614E}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{EF960359-8B28-8AFB-5F46-5541F544614E}.Release|Any CPU.Build.0 = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(SolutionProperties) = preSolution
+		HideSolutionNode = FALSE
+	EndGlobalSection
+	GlobalSection(ExtensibilityGlobals) = postSolution
+		SolutionGuid = {15C2FC16-C3CE-4060-8FF2-C381126407C6}
+	EndGlobalSection
+EndGlobal

openai/Program.cs

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+
+CultureInfo.DefaultThreadCurrentCulture = CultureInfo.DefaultThreadCurrentUICulture = new CultureInfo("en-US");
+var server = new Server();
+#if DEBUG
+server.UseHotReload();
+#endif
+server.AddAppsFromAssembly();
+server.AddConnectionsFromAssembly();
+var chromeSettings = new ChromeSettings()
+    .UseTabs(preventDuplicates: true);
+server.UseChrome(chromeSettings);
+await server.RunAsync();

openai/README.md

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+# OpenAIExample 
+
+Web application created using [Ivy](https://github.com/Ivy-Interactive/Ivy). 
+
+Ivy is a web framework for building interactive web applications using C# and .NET.
+
+## Run
+
+```
+dotnet watch
+```
+
+## Deploy
+
+```
+ivy deploy
+```