crextractor/README.md

# Crextractor

Utility for extracting credentials from the Crunchyroll Android app (both TV and mobile versions).

The [credentials](https://github.com/vitalygashkov/crextractor/blob/main/credentials.tv.json) are [automatically](https://github.com/vitalygashkov/crextractor/actions/workflows/extract.yml) updated once a week (if there are any changes).

## Prerequisites

- [Node.js](https://nodejs.org/en)
- [jadx](https://github.com/skylot/jadx)

## Usage

### Fetching already extracted credentials

```js
async function main() {
  const url = 'https://raw.githubusercontent.com/vitalygashkov/crextractor/refs/heads/main/credentials.tv.json';
  const credentials = await fetch(url).then((response) => response.json());

  // You can use the extracted credentials to obtain access tokens for Crunchyroll APIs
  const response = await fetch('https://beta-api.crunchyroll.com/auth/v1/token', {
    headers: {
      Authorization: credentials.authorization,
      'User-Agent': 'Crunchyroll/ANDROIDTV/3.42.1_22267 (Android 16; en-US; sdk_gphone64_x86_64)',
      // ...
    },
    method: 'POST',
    body: JSON.stringify({
      // ...
    }),
  });
}
```

### Command-line interface

```bash
npx crextractor --target mobile --output ./credentials.mobile.json
```

> Results will be printed to the console and saved to `credentials.mobile.json` file. By default, the target is TV, but you can change it with `--target mobile` option.

### Library

```bash
npm i crextractor
```

```js
import { extract } from 'crextractor';

const { id, secret, encoded, authorization } = await extract();
// id - Crunchyroll app ID
// secret - Crunchyroll app secret
// encoded - Base64 encoded `id:secret` string
// authorization - ready HTTP header in the format `Basic <encoded>`, can be used to access some Crunchyroll APIs

// Do something with the extracted credentials
```

## License

MIT