Question 1

Poem vs Actix-web: which is better for a Rust web project?

Accepted Answer

Poem offers a more modular and ergonomic API with built-in OpenAPI and gRPC support, while Actix-web has a larger community and more mature ecosystem. Choose Poem for specific integrations and ease of use, or Actix-web for broader library support and stability.

Question 2

How to set up authentication in Poem?

Accepted Answer

Use middleware extensions like poem-grants or custom handlers; the framework supports extensible middleware, but you'll need to integrate third-party crates for JWT or OAuth, as shown in community examples for authorization.

Question 3

Does Poem support WebSockets natively?

Accepted Answer

No, Poem does not include built-in WebSocket support; you must use external crates like tokio-tungstenite or implement custom handlers, which can complicate real-time application development.

Question 4

Poem OpenAPI documentation generation tutorial?

Accepted Answer

The poem-openapi crate allows automatic OpenAPI spec generation from Rust code; refer to the examples directory for implementations that show how to define endpoints and integrate Swagger UI seamlessly.

Question 5

Poem middleware for logging and metrics examples?

Accepted Answer

Poem supports custom middleware for observability; use crates like tracing or implement your own, but comprehensive logging and metrics solutions require additional setup compared to frameworks with built-in tooling.

Question 6

Poem performance benchmarks compared to Axum?

Accepted Answer

Both are high-performance Rust frameworks, but Poem emphasizes modularity and built-in features like OpenAPI, while Axum is more minimalistic. Benchmarks vary, but Poem's use in data-intensive projects like Databend suggests competitive throughput in real-world scenarios.

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