Question 1

How to add custom middleware in Rooster?

Accepted Answer

Define a middleware map with enter and/or leave functions, as shown in the CORS example. Then, include it in your route definitions using the middleware list parameter, which can intercept requests or modify responses.

Question 2

Rooster vs Cowboy for building Erlang APIs?

Accepted Answer

Rooster is a lightweight REST framework with composable routing, while Cowboy is a full-featured HTTP server supporting more protocols. Choose Rooster for simple, focused APIs; Cowboy for broader web applications with WebSockets or complex routing.

Question 3

Does Rooster support WebSockets?

Accepted Answer

No, Rooster is designed specifically for REST APIs and does not include WebSocket support. For real-time features, you'd need to integrate additional libraries or use a different framework like Cowboy.

Question 4

How to handle JSON requests in Rooster?

Accepted Answer

Rooster uses jsx for JSON parsing, so request bodies in JSON are automatically parsed into Erlang maps. Access the body in the request map, as demonstrated in the save_product handler example in the README.

Question 5

Can I deploy Rooster in production with HTTPS?

Accepted Answer

Yes, Rooster supports HTTPS with SSL/TLS configuration using certificate files. Follow the SSL section in the README to set up secure connections, ensuring proper certificate paths and options.

Question 6

Are there performance benchmarks for Rooster?

Accepted Answer

The README does not provide benchmarks, but being built on mochiweb, it should handle concurrent requests efficiently. For specific metrics, conduct your own tests or check community forums, as it's a lightweight solution.

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