update

package.json

@@ -5,7 +5,8 @@
   "description": "A module for modern HTTP/HTTPS requests with support for form data, file uploads, JSON, binary data, streams, and more.",
   "exports": {
     ".": "./dist_ts_web/index.js",
-    "./legacy": "./dist_ts/legacy/index.js"
+    "./legacy": "./dist_ts/legacy/index.js",
+    "./fetch": "./dist_ts/core_fetch/index.js"
   },
   "type": "module",
   "scripts": {

ts/core_fetch/index.ts

@@ -0,0 +1,4 @@
+// Core fetch exports - native fetch implementation
+export * from './types.js';
+export * from './request.js';
+export * from './response.js';

ts/core_fetch/request.ts

@@ -0,0 +1,126 @@
+import * as types from './types.js';
+import { CoreResponse } from './response.js';
+import { CoreRequest as AbstractCoreRequest } from '../core_base/request.js';
+
+/**
+ * Fetch-based implementation of Core Request class
+ */
+export class CoreRequest extends AbstractCoreRequest<types.ICoreRequestOptions, CoreResponse> {
+  constructor(url: string, options: types.ICoreRequestOptions = {}) {
+    super(url, options);
+  }
+
+  /**
+   * Build the full URL with query parameters
+   */
+  private buildUrl(): string {
+    if (!this.options.queryParams || Object.keys(this.options.queryParams).length === 0) {
+      return this.url;
+    }
+
+    const url = new URL(this.url);
+    Object.entries(this.options.queryParams).forEach(([key, value]) => {
+      url.searchParams.append(key, value);
+    });
+    return url.toString();
+  }
+
+  /**
+   * Convert our options to fetch RequestInit
+   */
+  private buildFetchOptions(): RequestInit {
+    const fetchOptions: RequestInit = {
+      method: this.options.method,
+      headers: this.options.headers,
+      credentials: this.options.credentials,
+      mode: this.options.mode,
+      cache: this.options.cache,
+      redirect: this.options.redirect,
+      referrer: this.options.referrer,
+      referrerPolicy: this.options.referrerPolicy,
+      integrity: this.options.integrity,
+      keepalive: this.options.keepAlive,
+      signal: this.options.signal,
+    };
+
+    // Handle request body
+    if (this.options.requestBody !== undefined) {
+      if (typeof this.options.requestBody === 'string' || 
+          this.options.requestBody instanceof ArrayBuffer ||
+          this.options.requestBody instanceof FormData ||
+          this.options.requestBody instanceof URLSearchParams ||
+          this.options.requestBody instanceof ReadableStream) {
+        fetchOptions.body = this.options.requestBody;
+      } else {
+        // Convert objects to JSON
+        fetchOptions.body = JSON.stringify(this.options.requestBody);
+        // Set content-type if not already set
+        if (!fetchOptions.headers) {
+          fetchOptions.headers = { 'Content-Type': 'application/json' };
+        } else if (fetchOptions.headers instanceof Headers) {
+          if (!fetchOptions.headers.has('Content-Type')) {
+            fetchOptions.headers.set('Content-Type', 'application/json');
+          }
+        } else if (typeof fetchOptions.headers === 'object' && !Array.isArray(fetchOptions.headers)) {
+          const headersObj = fetchOptions.headers as Record<string, string>;
+          if (!headersObj['Content-Type']) {
+            headersObj['Content-Type'] = 'application/json';
+          }
+        }
+      }
+    }
+
+    // Handle timeout
+    if (this.options.timeout || this.options.hardDataCuttingTimeout) {
+      const timeout = this.options.hardDataCuttingTimeout || this.options.timeout;
+      const controller = new AbortController();
+      setTimeout(() => controller.abort(), timeout);
+      fetchOptions.signal = controller.signal;
+    }
+
+    return fetchOptions;
+  }
+
+  /**
+   * Fire the request and return a CoreResponse
+   */
+  async fire(): Promise<CoreResponse> {
+    const response = await this.fireCore();
+    return new CoreResponse(response);
+  }
+
+  /**
+   * Fire the request and return the raw Response
+   */
+  async fireCore(): Promise<Response> {
+    const url = this.buildUrl();
+    const options = this.buildFetchOptions();
+    
+    try {
+      const response = await fetch(url, options);
+      return response;
+    } catch (error) {
+      if (error.name === 'AbortError') {
+        throw new Error('Request timed out');
+      }
+      throw error;
+    }
+  }
+
+  /**
+   * Static factory method to create and fire a request
+   */
+  static async create(
+    url: string,
+    options: types.ICoreRequestOptions = {}
+  ): Promise<CoreResponse> {
+    const request = new CoreRequest(url, options);
+    return request.fire();
+  }
+}
+
+/**
+ * Convenience exports for backward compatibility
+ */
+export const isUnixSocket = CoreRequest.isUnixSocket;
+export const parseUnixSocketUrl = CoreRequest.parseUnixSocketUrl;

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;
+  }
+}

ts/core_fetch/types.ts

@@ -0,0 +1,27 @@
+import * as baseTypes from '../core_base/types.js';
+
+// Re-export base types
+export * from '../core_base/types.js';
+
+/**
+ * Core request options for fetch-based implementation
+ * Extends RequestInit from the Fetch API
+ */
+export interface ICoreRequestOptions extends RequestInit {
+  // Override method to be more specific
+  method?: baseTypes.THttpMethod;
+  // Additional options not in RequestInit
+  requestBody?: any;
+  queryParams?: { [key: string]: string };
+  timeout?: number;
+  hardDataCuttingTimeout?: number;
+  // keepAlive maps to keepalive in RequestInit
+  keepAlive?: boolean;
+}
+
+/**
+ * Core response object for fetch implementation
+ */
+export interface ICoreResponse<T = any> extends baseTypes.IAbstractResponse<T> {
+  // Fetch-specific properties (all from base interface)
+}

ts/core_node/types.ts

@@ -6,8 +6,9 @@ export * from '../core_base/types.js';
 
 /**
  * Core request options extending Node.js RequestOptions
+ * Node.js RequestOptions already includes method and headers
  */
-export interface ICoreRequestOptions extends plugins.https.RequestOptions, Omit<baseTypes.IAbstractRequestOptions, 'method' | 'headers'> {
+export interface ICoreRequestOptions extends plugins.https.RequestOptions {
   keepAlive?: boolean;
   requestBody?: any;
   queryParams?: { [key: string]: string };