split-rpc-client.ts

ts

const client = createBundlerClient({
  chain,
  transport: (opts) => {
    const bundlerRpc = http(`${BUNDLER_RPC}`)(opts);
    const paymasterRpc = http(`${PAYMASTER_RPC}`)(opts);
    const publicRpc = http(`${PUBLIC_RPC}`)(
      opts
    );

    return custom({
      request: async (args) => {
        const bundlerMethods = new Set([
          "eth_sendUserOperation",
          "eth_estimateUserOperationGas",
          "eth_getUserOperationReceipt",
          "eth_getUserOperationByHash",
          "eth_supportedEntryPoints",
        ]);
        const paymasterMethods = new Set([
          "alchemy_requestPaymasterAndData",
          "alchemy_requestGasAndPaymasterAndData",
        ]);

        if (bundlerMethods.has(args.method)) {
          return bundlerRpc.request(args);
        } else if (paymasterMethods.has(args.method)) {
          return paymasterRpc.request(args);
        } else {
          return publicRpc.request(args);
        }
      },
    })(opts);
  },
});
return createSmartAccountClientFromExisting({
  client,
  account: await createSimpleSmartAccount({
    chain,
    signer,
    entryPoint: getEntryPoint(chain, { version: "0.7.0" }),
    transport: custom(client),
    accountAddress,
  }),
  // you can also just override the fee estimator to do whatever you want to get fee estimates.
  // same for gas estimator for gas estimates, etc.
  // or even paymaster middleware. If you override each middleware, you have full control
  feeEstimator: async (struct) => ({
    ...struct,
    maxFeePerGas: 1_000_000_000n,
    maxPriorityFeePerGas: 500_000_000n,
  }),
  opts: { feeOptions },
});