Multichain Validation Module

This module acts as an extention of the ECDSA Module. The added benefit of this module is you now have the ability to use a single signer accross multiple blockchain networks. This allows you now to completely abstract away the chain that the user is interacting with.

Installation

npm

npm install @biconomy/modules 

yarn

yarn add @biconomy/modules 

pnpm

pnpm add @biconomy/modules 

Integration

import { MultiChainValidationModule, DEFAULT_MULTICHAIN_MODULE } from "@biconomy/modules";

    const multiChainModule = await MultiChainValidationModule.create({
    signer: signer,
    moduleAddress: DEFAULT_MULTICHAIN_MODULE
  })

Once initialized it can be passed to the smart account create method to create a smart account.

Here is how you can set up Smart Account instances accross multiple chains:

let baseAccount = await BiconomySmartAccountV2.create({
    chainId: ChainId.BASE_GOERLI_TESTNET,
    paymaster: //basePaymaster, 
    bundler: //baseBundler, 
    entryPointAddress: DEFAULT_ENTRYPOINT_ADDRESS,
    defaultValidationModule: multiChainModule,
    activeValidationModule: multiChainModule
  });

let polygonAccount = await BiconomySmartAccountV2.create({
    chainId: ChainId.POLYGON_MUMBAI,
    paymaster: //polygonPaymaster, 
    bundler: //polygonBundler, 
    entryPointAddress: DEFAULT_ENTRYPOINT_ADDRESS,
    defaultValidationModule: multiChainModule,
    activeValidationModule: multiChainModule
  });