Ask HN: Any good tutorial or books on how to build a web framework?

3 pointsgazarullz2 comments

Hi, I am looking for some good tutorials or books on how to build a web framework from scratch, the platform of interest is the JVM and I would like to know more about basic concepts such as routing, filtering and how the request/response cycle is handled.

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Most frameworks rise out of a specific set of practices and an effort to automate those practices. Which means that they are usually built bottom up rather than top down. Rails is a primary example where 37 Signals built a framework that automated away the all the plumbing it was doing job after job building applications.

The tendency toward bottom up development is probably a reason there are so many frameworks...everyone has different practices that need automating.

The best way would be to learn from one of the existing open source projects.

You can start with sparkjava: https://github.com/perwendel/spark/

Also, multi-threading, I/O and networking are areas that you would need to understand inside out.

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