# Architecture

TAAL Wallet Chrome extension is built using React and Typescript.

## **Features**

* [React 18](https://reactjs.org/)
* [Redux Toolkit](https://redux-toolkit.js.org/)
* [BSV Javascript library](https://github.com/moneybutton/bsv)
* [TypeScript](https://www.typescriptlang.org/)
* [Webpack](https://webpack.js.org/)
* [ESLint](https://eslint.org/)
* [Prettier](https://prettier.io/)
* [Chrome Extension Manifest Version 3](https://developer.chrome.com/docs/extensions/mv3/intro/)

## Chrome Extension Documentation

* [ChromeExtension](https://developer.chrome.com/docs/extensions/mv3/)

## Communication

### Long lived connection

#### In background.js

```
chrome.runtime.onConnectExternal.addListener(port => {
  console.log('Client connected', port);
  port.onMessage.addListener(msg => {
    console.log('onExternalMessage', msg);
  });
});
```

#### In web page

```
const port = chrome.runtime.connect(extensionId, { name: 'some-name' });
port.onMessage.addListener(console.log);
port.postMessage({ payload: 'anything' })
```

#### In content script

```
const port = chrome.runtime.connect({ name: 'some-name' });
port.postMessage({ payload: 'anything' });
port.onMessage.addListener(msg => {
  console.log('onMessage', msg);
});
```

### One time communication (web -> background.js)

#### In background.js

```
chrome.runtime.onMessageExternal.addListener((payload, data, cb) => {
  console.log('onMessageExternal', { payload, data });
  if (typeof cb === 'function') {
    cb('response from background.js');
  }
  return true;
});
```

#### In web page

```
chrome.runtime.sendMessage(extensionId, { payload: 'anything' }, console.log)
```

#### In content script

```
chrome.runtime.sendMessage({ payload: 'anything' }, console.log);
```


---

# Agent Instructions: Querying This Documentation

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Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://docs.taal.com/core-products/taal-wallet/architecture.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.