What is client-js?

OpenRPC Client JS is a JavaScript library that helps web applications talk to servers using a communication standard called JSON-RPC. Think of it as a messenger that lets your website ask a server to do something, like run a calculation or fetch data, and then bring the answer back. The benefit is that developers get a clean, consistent way to send these requests from a browser without worrying about the underlying plumbing. The library works by giving you a few building blocks. You pick a "transport," which is just the method of communication, such as a regular HTTP web request or a live WebSocket connection. You hand that transport to a request manager, which tracks your requests and matches them to responses. Then you use a client object to send actual commands. For example, you can ask the server to run a method called "addition" with the numbers 2 and 2, and the library returns the result. What makes this project flexible is that it supports several different transports. Beyond HTTP and WebSocket, it can communicate through browser event emitters, or through postMessage, which is a way for different browser windows or embedded frames to talk to each other. This means a developer can use the same client code whether they are calling a remote server over the internet or talking to a different part of their own web page. A web developer building a decentralized app, a crypto wallet interface, or any front-end that needs to call server-side functions would use this. For instance, if you are building a dashboard that queries a blockchain node for account balances, this library handles the back-and-forth messaging so you can focus on your app's logic rather than the mechanics of formatting and sending each request. The README does not go into detail on broader tradeoffs or design decisions. It provides code examples for each transport type and notes that the project uses Bun for building and follows conventional commit guidelines for contributions.