Nomad changes

docs/snippets/csharp/advanced/custom_ocr_backend.cs

@@ -0,0 +1,84 @@
+using Kreuzberg;
+using System.Net.Http;
+using System.Text.Json;
+
+class CloudOcrBackend : IOcrBackend
+{
+    private readonly string _apiKey;
+    private readonly HttpClient _httpClient;
+
+    public CloudOcrBackend(string apiKey)
+    {
+        _apiKey = apiKey;
+        _httpClient = new HttpClient();
+    }
+
+    public string Name => "cloud-ocr";
+
+    public string Process(ReadOnlySpan<byte> imageBytes, OcrConfig? config)
+    {
+        return Task.Run(async () =>
+        {
+            try
+            {
+                var bytes = imageBytes.ToArray();
+                using var content = new MultipartFormDataContent();
+                content.Add(new ByteArrayContent(bytes), "image");
+
+                var request = new HttpRequestMessage(
+                    HttpMethod.Post,
+                    "https://api.example.com/ocr"
+                )
+                {
+                    Content = content,
+                    Headers =
+                    {
+                        { "Authorization", $"Bearer {_apiKey}" }
+                    }
+                };
+
+                var response = await _httpClient.SendAsync(request);
+                response.EnsureSuccessStatusCode();
+
+                var jsonContent = await response.Content.ReadAsStringAsync();
+                return jsonContent;
+            }
+            catch (HttpRequestException ex)
+            {
+                throw new KreuzbergOcrException($"Cloud OCR service error: {ex.Message}");
+            }
+        }).GetAwaiter().GetResult();
+    }
+
+    public void Dispose()
+    {
+        _httpClient?.Dispose();
+    }
+}
+
+class Program
+{
+    static void Main()
+    {
+        using var backend = new CloudOcrBackend("your-api-key");
+        KreuzbergLib.RegisterOcrBackend(backend);
+
+        try
+        {
+            var config = new ExtractionConfig
+            {
+                Ocr = new OcrConfig
+                {
+                    Backend = "cloud-ocr"
+                }
+            };
+
+            var result = KreuzbergLib.ExtractFileSync("document.pdf", config);
+            Console.WriteLine($"OCR text: {result.Content}");
+        }
+        catch (KreuzbergException ex)
+        {
+            Console.WriteLine($"Error: {ex.Message}");
+        }
+    }
+}