Show HN: BinaryRPC – Lightweight WebSocket-based RPC framework in modern C++

Summary

BinaryRPC 🧭 Motivation While working at my company, I had previously developed a WebSocket server prototype in Java. However, over time, we started to experience performance issues. This led me to turn to C++, a language that offers more speed and low-level system control. Through my research, I discovered that uWebSockets was one of the best options in terms of performance, so I began developing with this library. However, since uWebSockets is a very "core" library, I had to handle many details myself. Even adding a simple feature required a lot of infrastructure management. During this process, I explored other libraries in the C++ ecosystem, but most were either too heavy or did not prioritize developer experience. Having developed many projects with Node.js and Express.js in the past, I had this idea: Why not have a modern RPC framework in C++ that supports middleware and session logic, just like Express.js? With this idea in mind, I started designing a system that includes session management, a middleware structure, and an RPC handler architecture. At first, it was just a dream, but over time I built the building blocks of that dream one by one. I laid the foundations of this framework before graduating, and after graduation, I decided to make it open source as both a gift to myself and a contribution to the developer community. Although I sometimes got lost in the vast control that C++ offers, I progressed step by step to bring it to its current state. I tried to include the essential things a developer might need. I hope you enjoy using it and encounter no issues, because this project is, in fact, a heartfelt contribution that a newly graduated engineer wanted to offer to the world. In the future, I aim to evolve this architecture into an actor-mailbox model. However, I believe the current structure needs to be further solidified first. If you have any suggestions or contributions regarding this process, please feel free to contact me. BinaryRPC is a high‑thr...