Init

Htmx.ApiDemo/Templates/Greeting.htmx

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+<div class="greeting">
+    <h1>Hello, $$User$$!</h1>
+    <p>Welcome to high-performance htmx rendering.</p>
+</div>

Htmx.ApiDemo/Templates/Greeting.htmx.cs

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+using Htmx.ApiDemo;
+using Immediate.Apis;
+using Immediate.Apis.Shared;
+using Immediate.Handlers.Shared;
+
+namespace Htmx.ApiDemo.Templates;
+
+public class Greeting : GreetingBase
+{
+    private byte[] _userData = [];
+    public required string Username { init => _userData = value.ToUtf8Bytes(); }
+    protected override void RenderUser(HtmxRenderContext context) => context.Writer.WriteUtf8(_userData);
+}
+
+[Handler]
+[MapGet("/greet/{username}")]
+public static partial class GetGreetingHandler
+{
+    public record Query(string Username);
+
+    private static ValueTask HandleAsync(
+        Query query,
+        IHttpContextAccessor httpContextAccessor, 
+        CancellationToken token)
+    {
+        var context = httpContextAccessor.HttpContext;
+        if(context is null)
+            throw new InvalidOperationException("HttpContext is not available.");
+
+        var template = new Greeting { Username = query.Username };
+
+        context.Response.ContentType = "text/html; charset=utf-8";
+        context.Response.BodyWriter.WriteHtmx(template);
+
+        return ValueTask.CompletedTask;
+    }
+}