webviewbridge-guide

Configure WebViewBridge for bidirectional JavaScript and Swift messaging in macOS WebViews.

Updated Dec 7, 2025

Search Tags:#WebSocket #JavaScript #Swift #WebViewBridge #WebPage #bidirectional messaging

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npx skills add https://github.com/Sunalamye/WebViewBridge --skill webviewbridge-guide

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Please help me install this Agent Skill.
Skill: webviewbridge-guide
Source: https://github.com/Sunalamye/WebViewBridge/tree/main/skills/webviewbridge-guide
Command: npx skills add https://github.com/Sunalamye/WebViewBridge --skill webviewbridge-guide

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill includes references (resource) components.

What problem does it solve?

This Skill guide helps developers integrate the Swift WebViewBridge library to build a macOS WebPage bridge with JavaScript injection and bidirectional communication, reducing boilerplate and setup time.

Core Features & Use Cases

Guided setup: Step-by-step integration of WebViewBridge, including bridge creation, module registration, and configuration of WebPage.
JS ↔ Swift Messaging: How to send messages from JavaScript to Swift and back.
Call JavaScript from Swift: How to execute JavaScript in the WebPage context with return values.
WebPage Configuration: Demonstrates configuring WKWebView's content controller and WebPage.
WebSocket Interception: Instructions to install WebSocket interceptors for debugging or controls.

Quick Start

Install and import WebViewBridge in your macOS app.
Create a bridge instance with a handlerName.
Register core modules and your custom module.
Configure a WKWebView through WebPage and contentController.
Call JavaScript using bridge.callJavaScript() and handle results.

Frequently Asked Questions about webviewbridge-guide

High-intent search queries and answers about installing and using this skill.

FAQPage Schema

How do I set up bidirectional messaging between JavaScript and Swift in a macOS WebView?▼

Bidirectional messaging between JavaScript and Swift requires creating a WebViewBridge instance, registering modules with a handlerName, configuring the WKWebView's contentController, and using bridge.callJavaScript() for Swift→JS calls and onMessage handlers for JS→Swift messages.

Can I send messages from JavaScript to Swift in a WKWebView?▼

Yes. JavaScript can send messages to Swift by invoking the registered bridge handler. Swift receives these messages via delegate methods or onMessage callbacks, enabling you to trigger native functionality from web code.

How do I call JavaScript from Swift and get return values?▼

Use bridge.callJavaScript() with an asynchronous handler to execute JavaScript in the WebView context and receive return values, allowing Swift code to query or manipulate the DOM and handle results.

What's required to configure WebViewBridge with WKWebView and contentController?▼

Configure WebViewBridge by creating a bridge instance with a handlerName, registering core and custom modules, and setting up the contentController and WebPage to inject the bridge script into the WebView.

Do I need to manually inject JavaScript to enable WebView-to-Swift communication?▼

WebViewBridge handles JavaScript injection automatically during bridge initialization and WebPage configuration, eliminating manual script insertion while ensuring proper module registration and message handling.

Can WebViewBridge intercept WebSocket connections for debugging or control?▼

Yes. WebViewBridge supports installing WebSocket interceptors to monitor, debug, or control WebSocket traffic between JavaScript and backend services within the WebView context.