Question 1

Is PaindaProtocol a Socket.io alternative?

Accepted Answer

Yes — PaindaProtocol is a direct Socket.io alternative with a familiar event-driven API. It delivers 10x higher throughput and 70% less wire overhead by replacing JSON-over-polling with a binary WebSocket protocol. Most Socket.io apps can be migrated in under an hour. A step-by-step migration guide is available in the docs.

Question 2

Why is PaindaProtocol faster than Socket.io?

Accepted Answer

Socket.io uses Engine.IO, which starts every connection with HTTP long-polling before upgrading to WebSocket — adding hundreds of milliseconds of latency on first connect. PaindaProtocol opens a pure WebSocket immediately and encodes all messages as zero-copy binary frames instead of JSON strings. The result: 70% smaller payloads, no polling overhead, and a 16-byte routing header instead of Engine.IO's full HTTP handshake.

Question 3

What is PaindaProtocol best used for?

Accepted Answer

PaindaProtocol is built for real-time multiplayer games, collaborative apps, live chats, and any scenario requiring low-latency state sync. The built-in Delta Engine syncs 1000-player game state at 60 FPS by sending only diffs instead of full state. It also handles WebRTC signaling via @painda/video, making it a single engine for both WebSocket and peer-to-peer use cases.

Question 4

Does PaindaProtocol work with Next.js, Express, and Fastify?

Accepted Answer

Yes. PaindaProtocol attaches to any Node.js HTTP server. Install @painda/core, pass your existing Express, Fastify, or Next.js server instance, and you are live in a few lines of code. No separate process or infrastructure needed.

Question 5

Is PaindaProtocol free to use?

Accepted Answer

PaindaProtocol is MIT licensed and free for projects under $1M ARR with fewer than 50 employees. For larger companies a commercial license applies, which includes priority support, a commercial warranty, and access to Pro Plugins.

Question 6

How does PaindaProtocol scale horizontally?

Accepted Answer

Since PaindaProtocol uses pure WebSockets without HTTP polling, you do not need sticky sessions on your load balancer. The first-party @painda/redis adapter synchronizes rooms, messages, and presence across multiple Node.js or Next.js instances instantly — just add it as middleware.

Question 7

Does PaindaProtocol handle reconnections and server restarts?

Accepted Answer

Yes, both. The client has built-in smart reconnect with Exponential, Linear, or Fibonacci backoff and auto-jitter. For server restarts, the @painda/persistence middleware issues Session Tokens so clients can resume their session without losing state after a server restart or crash.

⚡ C++ SDK (Coming Soon)

🔥 Status: Strategic Planning

Target Environments

Design Goals

Roadmap