Wednesday, May 2, 2018

Aeson: the tutorial

Aeson: the tutorial

Aeson is the most widely used library for parsing JSON (in Haskell, of course, I'm not talking about the whole world). It's also hopelessly magical for people who try to learn it by looking at provided examples, and existing tutorials don't help that much, so I wrote my own.

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Finite-State Machines, Part 1: Modeling with Haskell Data Types

Stateful programs often become complex beasts as they grow. Program state incohesively spread across a bunch of variables, spuriously guar...