Attempting again to learn Domain Driven Design, and it’s clear if you’re an Object Oriented Programmer trying to learn Functional Programming, no wonder you’re confused. Here’s a paragraph summary of the 500 page book I’ve translated each sentence into typed FP.
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OpenSlava 2020: Using Serverless & Functional Programming for Ingestion Asteroid Price Data
I spoke at OpenSlava 2020 last Thursday. Specifically, I go over the 5 levels of error handling you can use to have more predictable code for Lambda’s and Step Functions.
My preso starts at 2:44:25 Slides – Google Preso | PDF
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React Developer’s Crash Course into Elm
Learning Functional Programming has a high learning curve. However, if you have something familiar to base it off of, it helps a lot. If you know React & Redux, this gives you a huge head start. Below, we’ll cover the basics of Elm using React & Redux/Context as a basis to help make it easier to learn.
The below deviates a bit from the Elm guide, both in recommendations and in attitude. Elm development philosophy is about mathematical correctness, learning & comprehending the fundamentals, and keeping things as brutally simple as possible. I’m impatient, don’t mind trying and failing things 3 times to learn, and immersing myself in complexity to learn why people call it complex and don’t like it. I’m also more about getting things done quickly, so some of the build recommendations follow more familiar toolchains React, Angular, and Vue developers are used too which is pretty anti-elm simplicity.
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AWS Lambda Function Design Best Practice
When designing AWS Lambda’s, try to keep the side effects low. Think of your handler function having just 1 IO type. Just like a list can be typed as
(more…)Array[string], try keeping just one IO type as well.