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

Multi chain wallet aggregator for web3Auth

import { createFetchMiddleware } from '@toruslabs/base-controllers';
import { JRPCEngineV2 } from '@web3auth/auth';

function createEthChainIdMiddleware(chainId) {
  return ({
    request,
    next
  }) => {
    if (request.method === "eth_chainId") return chainId;
    return next(request);
  };
}
function createEthProviderConfigMiddleware(providerConfig) {
  return ({
    request,
    next
  }) => {
    if (request.method === "eth_provider_config") return providerConfig;
    return next(request);
  };
}
function createEthJsonRpcClient(providerConfig) {
  const {
    chainId,
    rpcTarget
  } = providerConfig;
  const engine = JRPCEngineV2.create({
    middleware: [createEthChainIdMiddleware(chainId), createEthProviderConfigMiddleware(providerConfig), createFetchMiddleware({
      rpcTarget
    })]
  });
  const networkMiddleware = engine.asMiddleware();
  return {
    networkMiddleware
  };
}

export { createEthJsonRpcClient };