@web3auth/no-modal/dist/lib.esm/providers/ethereum-provider/rpc/ethRpcMiddlewares.js

Multi chain wallet aggregator for web3Auth

import { createScaffoldMiddlewareV2, JRPCEngineV2, rpcErrors } from '@web3auth/auth';
import { createWalletMiddlewareV2 } from './walletMiddleware.js';

function createEthMiddleware(providerHandlers) {
  const engine = JRPCEngineV2.create({
    middleware: [createScaffoldMiddlewareV2({
      eth_syncing: false
    }), createWalletMiddlewareV2(providerHandlers)]
  });
  return engine.asMiddleware();
}
function createEthChainSwitchMiddleware({
  switchChain,
  addChain
}) {
  async function walletSwitchEthereumChainHandler(params) {
    var _request$params;
    const request = params.request;
    const chainParams = (_request$params = request.params) !== null && _request$params !== void 0 && _request$params.length ? request.params[0] : undefined;
    if (!chainParams) throw rpcErrors.invalidParams("Missing chainId");
    await switchChain(chainParams);
    return null;
  }
  async function walletAddEthereumChainHandler(params) {
    var _request$params2;
    const request = params.request;
    const chainConfig = (_request$params2 = request.params) !== null && _request$params2 !== void 0 && _request$params2.length ? request.params[0] : undefined;
    if (!chainConfig) throw rpcErrors.invalidParams("Missing chainConfig");
    await addChain(chainConfig);
    return null;
  }
  return createScaffoldMiddlewareV2({
    wallet_switchEthereumChain: walletSwitchEthereumChainHandler,
    wallet_addEthereumChain: walletAddEthereumChainHandler
  });
}

export { createEthChainSwitchMiddleware, createEthMiddleware };