feat: added feature of http/2 chunk load

wwwroot/index.html

@@ -0,0 +1,51 @@
+<!DOCTYPE html>
+<html lang="en">
+<head>
+    <title>HTTP2FileStreams test</title>
+</head>
+    <input type="file" id="input"/>
+    <button onclick="onFileSelected()">Загрузить</button>
+<script>
+    function onFileSelected(){
+        const inputElement = document.getElementById("input").files[0];
+        uploadFile(inputElement, console.log);
+    }
+    async function uploadFile(file, onProgress) {
+        const endpoint = '/api/upload';
+
+        // Создаем TransformStream для отслеживания прогресса
+        let uploadedBytes = 0;
+        const progressStream = new TransformStream({
+            transform(chunk, controller) {
+                controller.enqueue(chunk);
+                uploadedBytes += chunk.length;
+                const percent = Math.round((uploadedBytes / file.size) * 100);
+                onProgress(percent);
+            }
+        });
+
+        try {
+            // Создаем поток для чтения файла
+            const fileStream = file.stream();
+
+            // Соединяем потоки
+            const streamWithProgress = fileStream.pipeThrough(progressStream);
+
+            // Отправляем запрос
+            const response = await fetch(endpoint, {
+                method: 'POST',
+                headers: {
+                    'Content-Type': 'application/octet-stream',
+                    'X-File-Name': encodeURIComponent(file.name),
+                },
+                body: streamWithProgress,
+                duplex: 'half' // Обязательно для потоковой отправки
+            });
+
+            return await response.json();
+        } catch (error) {
+            throw new Error(`Upload failed: ${error.message}`);
+        }
+    }
+</script>
+</html>