A presentation at F# eXchange 2019 in in London, UK by Stuart Lang
Build an ASP.NET Core Web App with F#? You must be having a Giraffe!
What I’ll cover ◉ What is Giraffe ◉ Where does it fit in? ◉ How does it work? 2
1 What is it? 3
4 A functional ASP.NET Core micro web framework for building rich web applications. “
5
Idiomatic C# Idiomatic F# 6
An example Giraffe app (source) 7
1 How does it work? 8
Let’s model it! type HttpServer = 9
Let’s model it! type HttpHandler = 10
Let’s model it! 11
Let’s model it! type HttpHandler = 12
Let’s model it! (compose) 13
Let’s model it! 14
Let’s model it! type HttpHandler = 15
Let’s model it! But it could be better… https://medium.com/@gerardtoconnor/carry-on-continuation -over-binding-pipelines-for-functional-web-58bd7e6ea009 16
Let’s model it! type HttpFunc = type HttpHandler = 17
Let’s model it! Familiar… ASP.NET Core Middleware 18
Performance! 19
It’s a fullstack framework! ◉ View engines ○ DotLiquid ○ Razor ○ GiraffeViewEngine (HTML DSL) ◉ Much more 20
Resources ◉ Documentation ◉ Dustin Moris Gorski - Functional ASP.NET Core ◉ Zaid Ajaj Giraffe helpers 21
We use it! ◉ sse.co.uk 22
Summary ◉ Giraffe is great! ◉ We are spoilt for choice with web frameworks in F# 23
Thanks! ◉ Find me at: stu.dev 24
In this lightning talk, I will share with you what Giraffe is, how it works, what a Giraffe application looks like, and a look at some of the features.
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