Question 1

How to secure RPC methods with authentication in rpc-websockets?

Accepted Answer

Use the .protected() method after registering a server-side RPC, then call ws.login() on the client with credentials. The library handles token-based authentication internally, but you must implement credential validation on the server.

Question 2

rpc-websockets vs Socket.IO for real-time apps?

Accepted Answer

rpc-websockets is better for structured JSON-RPC 2.0 compliance and event-driven RPC, while Socket.IO offers broader fallback support (e.g., long-polling) and a larger ecosystem. Choose rpc-websockets if you need strict protocol adherence over WebSockets alone.

Question 3

Can the server emit events to specific clients only?

Accepted Answer

The README shows server.emit() broadcasts to all subscribers; for targeted events, you'd need to implement custom subscription logic or use the Pro plan's management features, which might offer more granular control.

Question 4

Is rpc-websockets good for IoT device communication?

Accepted Answer

Yes, it's suitable for IoT due to low-latency WebSocket connections and RPC for remote commands, but consider the unidirectional RPC limitation if devices need to receive server-initiated calls frequently.

Question 5

How to handle reconnections and errors in rpc-websockets?

Accepted Answer

The library provides basic WebSocket events like 'open' and 'close', but for robust reconnection, you must implement retry logic manually, as it lacks built-in recovery mechanisms compared to some alternatives.

Question 6

Does rpc-websockets support TypeScript natively?

Accepted Answer

Yes, it supports TypeScript with included type definitions, making it easier to integrate into modern frontend or backend projects without additional setup, as mentioned in the JavaScript/TypeScript support.

rpc-websockets

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