Playground

Try the WeChat Bot SDK directly in your browser. The example below runs in a real Node.js environment powered by StackBlitz WebContainers.

TIP

This is a live editor — you can modify the code and see changes in real time. The terminal on the right shows the bot output.

Browser API Demo

Scan a QR code to start long polling, receive new messages, and reply from a browser chat UI.

WARNING

ilinkai.weixin.qq.com does not expose the CORS headers required by browsers. This demo is rendered only during local development and uses the VitePress dev server proxy (/ilink -> https://ilinkai.weixin.qq.com). Static production deployments need their own backend, edge function, or gateway proxy.

Echo Bot Example

▶WeChat Echo Bot Open in StackBlitz ↗

More Examples

• examples/basic — Minimal echo bot with QR login
• examples/commands — Command-based bot (/help, /ping, /echo, /id)
• examples/media — Media bot with sendFile() and sendImage()
• examples/ai-chat — DeepSeek-powered chat bot with per-user context

What's Happening

1. The code calls bot.login() to get a QR code URL
2. You scan the QR with WeChat to authenticate
3. Once confirmed, the bot starts long-polling for messages
4. Any text message you send gets echoed back with "Echo: " prefix

Try It Yourself

Things you can try in the editor:

• Change the echo prefix from "Echo: " to something else
• Add image detection (check MessageItemType.IMAGE)
• Add a command system (e.g. /help, /ping)

Run Locally

Prefer running locally? Just:

git clone https://github.com/YunYouJun/weixin-ts
cd weixin-ts
pnpm install
pnpm example