# BNB chain canonical-bridge sdk

This SDK integrates API and methods from multiple cross-chain bridges, such as cBridge(Celer bridge), deBridge and Stargate. Users can easily retrieve protocol fees and transfer tokens through different chains.

## Installation

```bash
npm install @bnb-chain/canonical-bridge-sdk viem@^2
```

## Creating an Instance

```js
import { CanonicalBridgeSDK } from '@bnb-chain/canonical-bridge-sdk';

/**
 * Initialize SDK Instance
 * @returns SDK Instance
 */
const bridgeSDK = new CanonicalBridgeSDK({
  bridgeConfigs: [
    {
      bridgeType: 'cBridge',
      endpoint: env.CBRIDGE_ENDPOINT,
      timeout: 5000,
    },
    {
      bridgeType: 'deBridge',
      endpoint: env.DEBRIDGE_ENDPOINT,
      statsEndpoint: env.DEBRIDGE_STATS_ENDPOINT,
      timeout: 5000,
    },
  ],
});

const order = await bridgeSDK.deBridge.getOrder({
  id: '0x4cb96c88916d5f08a979750c54f3001ffb4069762326705d431a83f946b3ba64',
});
```

## Demo

[Demo](https://github.com/bnb-chain/canonical-bridge/blob/main/packages/canonical-bridge-widget/src/core/hooks/useBridgeSDK.ts)

## Support Bridge Protocols

If you are interested in protocol of each bridge, please find the links below.

| Bridge        | Doc Link                                                                 |
| ------------- | ------------------------------------------------------------------------ |
| Celer cBridge | [Link](https://cbridge-docs.celer.network/developer/cbridge-sdk)         |
| deBridge      | [Link](https://docs.debridge.finance/)                                   |
| Stargate V2   | [Link](https://stargateprotocol.gitbook.io/stargate/v/v2-developer-docs) |

## License

The contents of this repo are made available under the [MIT License](https://github.com/bnb-chain/canonical-bridge/tree/main/LICENSE).