Question 1

How does ARPC compare to gRPC in terms of performance?

Accepted Answer

ARPC is benchmarked for high performance in Go, with links to third-party benchmarks in the Performance section, but it lacks gRPC's built-in code generation and multi-language support. For pure Go projects requiring bidirectional RPC, ARPC can be faster due to its minimal overhead, but always test with your specific workload.

Question 2

How to implement authentication in an ARPC server?

Accepted Answer

Authentication isn't built-in; you need to use router middleware or custom handlers. The pub/sub extension shows password-based auth, but for general use, implement a middleware that validates tokens or credentials before processing requests, as hinted in the Router Middleware examples.

Question 3

Does ARPC support WebSockets or only TCP?

Accepted Answer

ARPC primarily uses TCP with custom net protocols, but WebSockets can be integrated by providing a custom dialer and connection handler. The Custom Net Protocol section allows wrapping any net.Conn, so you can adapt it for WebSockets with additional code.

Question 4

What's the error handling strategy for async calls in ARPC?

Accepted Answer

For async calls, errors must be handled in callbacks; the framework doesn't provide automatic retry or circuit breaking. In CallAsync, check the context for errors in the callback, and use middleware like recovery to catch panics, as shown in the Router Middleware examples.

Question 5

Can ARPC be used with Kubernetes for microservices?

Accepted Answer

Yes, but ARPC doesn't include Kubernetes-specific features; you'll need to manage service discovery, scaling, and health checks externally. Its stateless design works with container orchestration, but expect to implement these aspects yourself or with additional tools.

Question 6

How to add compression or encryption middleware in ARPC?

Accepted Answer

Use coder middleware for data transformation; the README provides an example with gzip compression in the Coder Middleware section. For encryption, implement a custom coder that encrypts/decrypts payloads, leveraging the extensible middleware system.

Question 7

Is ARPC suitable for real-time chat applications?

Accepted Answer

Yes, ARPC is well-suited for real-time chat due to its broadcast, two-way notify, and pub/sub features. The Web Chat Examples demonstrate this use case, showing how to handle multiple clients and push notifications efficiently.

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