Alchemy SDK Multichain Demo

This is a simple demo of how to use the Alchemy SDK with multiple chains in a single application while managing the different API keys and endpoints for each chain.

The src/alchemy-multi-chain-client.ts file contains a sample implementation of a AlchemyMultichainClient class, which is a wrapper around the Alchemy SDK that allows using multiple chains in a single application. This should be a good starting point for building out your own multichain application using the Alchemy SDK.

The src/index.ts file contains a simple demo using the AlchemyMultichainClient class to make requests across multiple chains. Please feel free to modify this demo file to test out different requests and chains.

Getting Started

To get started, clone this repo. Then, run npm install to install the dependencies. To run the demo, run npm run demo.

Sample Usage

Here's a sample usage of the AlchemyMultichainClient class from the demo:

import { AlchemyMultichainClient } from './alchemy-multichain-client';
import { Network } from 'alchemy-sdk';

const owner = '0xd8da6bf26964af9d7eed9e03e53415d37aa96045';
const defaultSettings = { apiKey: 'default-api-key' };
const overrides = {
  [Network.MATIC_MAINNET]: { apiKey: 'matic-api-key' }
};
const alchemy = new AlchemyMultichainClient(defaultSettings, overrides);
alchemy.forNetwork(Network.ETH_MAINNET).getNftsForOwner(owner); // Uses `default-api-key`
alchemy.forNetwork(Network.MATIC_MAINNET).getNftsForOwner(owner); // Uses `matic-api-key`

Please feel free to copy or modify this sample implementation to suit your needs in your own projects!