Lenses/Zippers/State. Handy gear in your daily toolbox.

Selling point of most functional languages is immutability. It seems no brainer but the problem start when you have to update deeply nested structure. The aim of this presentation is to show efficient methods for working with immutable objects (value classes and collections) During presentation I will focus on two main approaches worth knowing: lenses and zippers. Explaining a bit of theory with some practical examples with my two favourite libraries: monocle, circe and cats.

Session length

40 minutes

Language of the presentation

English

Target audience

Intermediate: Requires a basic knowledge of the area

Who is your session intended to

who want to understand how lenses/zippers/state monad works and how it plays together
need to work with large immutable objects
dive deep into more advanced topic

Speaker

Marcin Matuszak (Data Engineer / Ryanair)