> ## Documentation Index
> Fetch the complete documentation index at: https://docs.boostgpt.co/llms.txt
> Use this file to discover all available pages before exploring further.

# Custom Adapters

> Build your own channel adapters

## Overview

Create custom adapters for any messaging platform.

## BaseAdapter

All adapters extend `BaseAdapter`:

```javascript theme={null}
import { BaseAdapter } from '@boostgpt/router';

export class CustomAdapter extends BaseAdapter {
  constructor(options) {
    super({ ...options, channelName: 'custom' });
  }

  async start() {
    // Initialize your channel client
    this.isStarted = true;
  }

  async sendMessage(recipient, message) {
    // Send message via your channel
  }

  async stop() {
    await super.stop();
  }
}
```

## Example: Twitter Adapter

```javascript theme={null}
import { BaseAdapter } from '@boostgpt/router';
import { TwitterApi } from 'twitter-api-v2';

export class TwitterAdapter extends BaseAdapter {
  constructor({ bearerToken, ...options }) {
    super({ ...options, channelName: 'twitter' });
    this.client = new TwitterApi(bearerToken);
  }

  async start() {
    this.stream = await this.client.v2.searchStream({
      'tweet.fields': ['author_id', 'created_at']
    });

    this.stream.on('data', async (tweet) => {
      const message = {
        content: tweet.data.text,
        userId: tweet.data.author_id,
        userName: tweet.data.author_id,
        metadata: { tweetId: tweet.data.id }
      };

      const reply = await this.handleMessage(message);
      
      if (reply) {
        await this.sendMessage(tweet.data.author_id, reply);
      }
    });

    this.isStarted = true;
  }

  async sendMessage(userId, message) {
    await this.client.v2.tweet(message);
  }
}
```

## Using Your Adapter

```javascript theme={null}
import { Router } from '@boostgpt/router';
import { TwitterAdapter } from './TwitterAdapter.js';

const router = new Router({
  apiKey: process.env.BOOSTGPT_API_KEY,
  projectId: process.env.BOOSTGPT_PROJECT_ID,
  adapters: [
    new TwitterAdapter({ bearerToken: process.env.TWITTER_TOKEN })
  ]
});

await router.start();
```