split

The split transport allows you to provide overrides for specific RPC methods. This is useful, for example, if you want to send bundler traffic to one provider and node traffic to another.

Import

import { split } from "@alchemy/aa-core";

Usage

splitTransport.ts

import { createSmartAccountClient, sepolia, split } from "@alchemy/aa-core";
import { http } from "viem";
 
const bundlerMethods = [
  "eth_sendUserOperation",
  "eth_estimateUserOperationGas",
  "eth_getUserOperationReceipt",
  "eth_getUserOperationByHash",
  "eth_supportedEntryPoints",
];
 
const splitTransport = split({
  overrides: [
    {
      methods: bundlerMethods,
      transport: http("BUNDLER_RPC_URL"),
    },
  ],
  fallback: http("OTHER_RPC_URL"),
});
 
export const client = createSmartAccountClient({
  chain: sepolia,
  transport: splitTransport,
});

Parameters

import { type SplitTransportProps } from "@alchemy/aa-core";

overrides

{transport: Transport, methods: string[]}[]

The overrides param is an array of objects containing a transport param of type Transport from viem (eg. http) and an array of methods that this transport should handle

fallback

Transport

This is the Transport to use for all other methods

Return Type

import { type CustomTransport } from "viem";

Returns a CustomTransport that can be passed to any compatible viem Client. This includes any SmartAccountClient instance.