Deploy Your Own ICTT Frontend

Set up the BuilderKit for deploying your own Interchain Token Transfer (ICTT) frontend with custom tokens and chains.

In this section, you’ll learn how to deploy your own ICTT frontend using the BuilderKit and pre-configured tokens and chains. Follow these steps to quickly set up and test your own ICTT frontends with Avalanche L1s.

Open the AvaCloudSDK Starter Kit Github Repository

Start by opening the repository on Github.

Open Avalanche Starter Kit

Open the Dev Container and Navigate to the Chain Definitions

Open the repository in a Github Codespace or Visual Studio Code.
Navigate to the web-apps/builderkit/chains/definitions folder.

In this folder, you’ll find separate files for each chain configuration. For example, echo.ts contains the definition for the Echo L1 chain:

import { defineChain } from "viem";
 
export const echo = defineChain({
    id: 173750,
    name: 'Echo L1',
    network: 'echo',
    nativeCurrency: {
        decimals: 18,
        name: 'Ech',
        symbol: 'ECH',
    },
    rpcUrls: {
        default: {
            http: ['https://subnets.avax.network/echo/testnet/rpc']
        },
    },
    blockExplorers: {
        default: { name: 'Explorer', url: 'https://subnets-test.avax.network/echo' },
    },
    iconUrl: "/chains/logo/173750.png"
});

How to Configure Your Own Blockchain

To configure your custom blockchain (e.g., myblockchain):

Copy the existing echo.ts file and rename it to myblockchain.ts.
Update the fields to match your blockchain’s specific details, such as chain ID, network name, and native currency.
Save the file in the chains/definitions folder.

Import Your Chains

Navigate to the web-apps/builderkit/flows/ictt folder.

Once you're inside the ICTT folder, open the page.tsx file to begin configuring the tokens and chains.

import { myblockchain } from './chains/definitions';

Add Imported Chains to Array

After importing the chains, add them into the chains array:

const chains = [avalanche, avalancheFuji, echo, dispatch, myblockchain];

This array will hold the configuration of all the chains that will interact with your ICTT frontend.

Add Your Chain, and Configure Tokens

Next, configure your tokens. Here’s an example token configuration:

const tokens = [
  {
    address: "0x8D6f0E153B1D4Efb46c510278Db3678Bb1Cc823d",
    name: "TOK",
    symbol: "TOK",
    decimals: 18,
    chain_id: 43113,
    supports_ictt: true,
    transferer: "0xD63c60859e6648b20c38092cCceb92c5751E32fF",
    mirrors: [
      {
        address: "0x8D6f0E153B1D4Efb46c510278Db3678Bb1Cc823d",
        transferer: "0x8D6f0E153B1D4Efb46c510278Db3678Bb1Cc823d",
        chain_id: 173750,
        decimals: 18
      }
    ]
  },
  {
    address: "0x8D6f0E153B1D4Efb46c510278Db3678Bb1Cc823d",
    name: "TOK.e",
    symbol: "TOK.e",
    decimals: 18,
    chain_id: 173750,
    supports_ictt: true,
    is_transferer: true,
    mirrors: [
      {
        home: true,
        address: "0x8D6f0E153B1D4Efb46c510278Db3678Bb1Cc823d",
        transferer: "0xD63c60859e6648b20c38092cCceb92c5751E32fF",
        chain_id: 43113,
        decimals: 18
      }
    ]
  }
];

Implement the ICTT Component

After configuring the tokens and chains, implement the ICTT component in the page. Here’s how to pass the token and chain details to the component:

<ICTT tokens={tokens} token_in="0x8D6f0E153B1D4Efb46c510278Db3678Bb1Cc823d" source_chain_id={43113} destination_chain_id={173750}></ICTT>

In this example:

tokens contains the configuration.
token_in specifies the address of the token being transferred.
source_chain_id and destination_chain_id represent the IDs of the source and destination chains.