Lightning Talk: Build an ASP.NET Core Web App with F#? You must be having a Giraffe!

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. “

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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