update

ts/core_fetch/response.ts

@@ -0,0 +1,78 @@
+import * as types from './types.js';
+import { CoreResponse as AbstractCoreResponse } from '../core_base/response.js';
+
+/**
+ * Fetch-based implementation of Core Response class
+ */
+export class CoreResponse<T = any> extends AbstractCoreResponse<T> implements types.ICoreResponse<T> {
+  private response: Response;
+  private responseClone: Response;
+
+  // Public properties
+  public readonly ok: boolean;
+  public readonly status: number;
+  public readonly statusText: string;
+  public readonly headers: types.AbstractHeaders;
+  public readonly url: string;
+
+  constructor(response: Response) {
+    super();
+    // Clone the response so we can read the body multiple times if needed
+    this.response = response;
+    this.responseClone = response.clone();
+    
+    this.ok = response.ok;
+    this.status = response.status;
+    this.statusText = response.statusText;
+    this.url = response.url;
+    
+    // Convert Headers to plain object
+    this.headers = {};
+    response.headers.forEach((value, key) => {
+      this.headers[key] = value;
+    });
+  }
+
+  /**
+   * Parse response as JSON
+   */
+  async json(): Promise<T> {
+    this.ensureNotConsumed();
+    try {
+      return await this.response.json();
+    } catch (error) {
+      throw new Error(`Failed to parse JSON: ${error.message}`);
+    }
+  }
+
+  /**
+   * Get response as text
+   */
+  async text(): Promise<string> {
+    this.ensureNotConsumed();
+    return await this.response.text();
+  }
+
+  /**
+   * Get response as ArrayBuffer
+   */
+  async arrayBuffer(): Promise<ArrayBuffer> {
+    this.ensureNotConsumed();
+    return await this.response.arrayBuffer();
+  }
+
+  /**
+   * Get response as a readable stream (Web Streams API)
+   */
+  stream(): ReadableStream<Uint8Array> | null {
+    this.ensureNotConsumed();
+    return this.response.body;
+  }
+
+  /**
+   * Get the raw Response object
+   */
+  raw(): Response {
+    return this.responseClone;
+  }
+}