What is eventproxy?

EventProxy is a lightweight JavaScript library that makes it easier to manage multiple asynchronous operations happening at the same time, the kind of tasks that normally require deeply nested callbacks. Think of it like coordinating different team members working in parallel. Instead of waiting for one person to finish, then the next, then the next (which creates messy, hard-to-read code), you can tell EventProxy "wait for all three of these tasks to complete, then do something with the results." For example, if you're building a web page that needs to fetch a template, load data from a database, and get translations, EventProxy lets you trigger all three requests at once and then automatically run your page-rendering code once all three have returned. This is faster than waiting for each one to finish sequentially. The library works by using events as a communication channel. You emit events when async tasks complete, and EventProxy listens for combinations of events. It comes with several built-in patterns: all waits for a set of events to fire once each, after waits for the same event to fire a specific number of times (useful for reading 10 files), and tail keeps listening for updates after an initial set of events have fired. It also includes error handling shortcuts, methods like done and fail that automatically pipe errors to a single error handler, removing the need to check for errors in every single callback. The library works in both Node.js and browsers, and it's designed to be tiny (about 500 lines of commented code) with no external dependencies. It's been used in production and has 97% test coverage. Developers who find callback-heavy code hard to read and maintain benefit most from this, especially when coordinating multiple database queries, file operations, or API requests in the same piece of logic.