Use the chain-registry to get token, asset, and IBC information in the interchain

How to get token and asset information for Cosmos SDK chains

Today, we're going to explore how this package can simplify your life when working with blockchain data in the interchain. Whether you're developing an app or just curious about blockchain technologies, this guide will help you understand the essentials of using [`chain-registry`](https://cosmology.zone/products/chain-registry), a unified store of chains info, assets, asset lists, and IBC channels for the Cosmos ecosystem. Get everything from token symbols, logos, and IBC denominations for all assets you want to support in your application.

## Introduction

First things first, let's get the package installed. Just run the following command in your terminal:

```bash
npm install chain-registry
```

## Features

- 🌐 **Dynamic Loading via [ChainRegistryClient](https://github.com/cosmology-tech/chain-registry/tree/main/packages/client)** - Utilize the client for dynamic data fetching.
- 📦 **Tree-Shaking Support** - Optimize your bundles and include only what you need.
- 🔌 **Module Compatibility** - Supports both CommonJS and ES Module formats, ensuring compatibility with various JavaScript environments and tools.
- 🛠 **Utilities for Working with Assets and Chains** - [Comprehensive tools](https://github.com/cosmology-tech/chain-registry/tree/main/packages/client) to manage assets and chains efficiently.
- 🌎 **Pre-generated Asset Lists with IBC Denominations for All Chains** - Access ready-to-use [asset lists](ttps://github.com/cosmology-tech/chain-registry/tree/main/packages/assets) across all chains.

## Usage

### Fetching data from `chain-registry`:

To start using the `chain-registry`, simply import the necessary asset lists and chains:

```js
import { assets, chains, ibc } from 'chain-registry';

const assetList = assets.find(({ chain_name }) => chain_name === 'osmosis');

console.log(assetList);
```

will output:

```js
{
  '$schema': '../assetlist.schema.json',
  chain_name: 'osmosis',
  assets: [
    {
      description: 'The native token of Osmosis',
      denom_units: [Array],
      base: 'uosmo',
      name: 'Osmosis',
      display: 'osmo',
      symbol: 'OSMO',
      logo_URIs: [Object],
      coingecko_id: 'osmosis'
    },
    ...
  ]
}
```

### Using the `@chain-registry/client` for dynamic data

Dynamically fetch data:

```js
import { ChainRegistryClient } from '@chain-registry/client';

// create an instance of ChainRegistryClient by passing in the chain names
const client = new ChainRegistryClient({
  chainNames: ['osmosis', 'juno', 'stargaze'],
});

// chain info, assets and ibc data will be downloaded dynamically by invoking fetchUrls method
await client.fetchUrls();
const osmosisData = {
  chain: client.getChain('osmosis'),
  assetList: client.getChainAssetList('osmosis'),
  ibcData: client.getChainIbcData('osmosis'),
  generatedAssetList: client.getGeneratedAssetLists('osmosis'),
};
```

This approach ensures you always have the most up-to-date data available without needing to manually update your projects.

### Efficient Tree-Shaking Imports from `chain-registry`

`chain-registry` supports tree-shaking to help keep your project lightweight. Depending on your needs, you can import data specifically for mainnets, testnets, or devnets, or even drill down to specific chains:

```js
// For mainnet data
import { assets, chains } from 'chain-registry/mainnet';

// For testnet data
import { assets, chains } from 'chain-registry/testnet';

// For specific chain data, e.g., Osmosis
import { assets as osmosisAssets } from 'chain-registry/mainnet/osmosis/assets';
```

## Wrapping Up

By using [`chain-registry`](https://cosmology.zone/products/chain-registry), you can significantly streamline the process of integrating blockchain data into your applications. Whether it's fetching the latest asset lists or dynamically updating IBC channels, `chain-registry` has you covered.

Feel free to experiment with these tools and incorporate them into your projects. Happy coding!
