Question 1

How to set up tarpc with tokio for async Rust?

Accepted Answer

Enable the 'tokio1' feature in Cargo.toml and use tokio's runtime, as shown in the example where server channels are spawned with tokio::spawn for concurrent request handling.

Question 2

tarpc vs gRPC for Rust microservices?

Accepted Answer

tarpc is better for Rust-only teams wanting in-code schemas and minimal boilerplate, while gRPC suits polyglot environments with .proto files but adds complexity. tarpc lacks gRPC's HTTP/2 support by default but offers transport flexibility.

Question 3

Does tarpc support HTTP/2 or WebSockets?

Accepted Answer

Not natively; you need to implement a custom transport using Stream+Sink traits. The serde_transport feature provides TCP support, but advanced protocols require manual integration.

Question 4

How to add authentication to tarpc services?

Accepted Answer

Implement it at the transport layer (e.g., wrap connections with TLS) or in service logic using context data, as tarpc doesn't include built-in auth mechanisms, relying on Rust's ecosystem.

Question 5

Is tarpc production-ready for large-scale systems?

Accepted Answer

Yes, with features like distributed tracing and cancellation, but it's Rust-centric and less battle-tested than gRPC. The disclaimer notes it's not an official Google product, which may affect long-term support.

Question 6

How to benchmark tarpc serialization performance?

Accepted Answer

Use the optional serde1 feature and compare in-memory vs network transports; the README mentions avoiding serialization overhead with in-memory channels, but network usage incurs serde costs.

Tarpc

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