Getting started

A simple JS library for building ERC-4337 UserOperations.

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Usage

See the userop documentation at docs.stackup.sh.

Contributing

Prerequisites

• Node 16 or later

Setup

Install dependencies:

yarn install

Run tests:

yarn test

License

Distributed under the MIT License. See LICENSE for more information.

Contact

Feel free to direct any technical related questions to the dev-hub channel in the Stackup Discord.

Key Modifications

• User-Agent Header for RPC Requests: Added support for setting a custom User-Agent header in all RPC requests. This modification allows requests to comply with WAF (Web Application Firewall) requirements that may require a specific User-Agent value.

  The User-Agent can be set dynamically via environment variables or defaults to a custom value. Here’s an example:

  import { Client } from "./path-to-client";
  
  // Example setup with dynamic User-Agent
  const client = new Client("https://rpc-url", {
      userAgent: process.env.USER_AGENT || "YourCustomUserAgent/1.0.0"
  });