Arrow Fx: Functional Domain Modeling with Kotlin

on YouTube ↗28m

" summary

Builds a small app that takes a list of URLs and returns structured entities using Arrow Optics Arrow Fx and Arrow Meta on Kotlin with KotlinX coroutines. It enforces a 56‑char alphanumeric API key via type refinements, constrains max parallel requests to two and runs blocking calls on an IO pool, uses Either for typed errors and a composed schedule to retry up to three times. Dependency wiring uses the given annotation and coercion groups to hide the program; compiler checks and runtime limits demonstrably work.

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" chapters (5)

1. 0:00Introduction
2. 0:56Outline
3. 5:03App Requirements
4. 10:40Business Requirements
5. 23:35Hiding Complexity

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