Purely functional microservices with http4s and doobie

As functional programmers we want to compose pure functions, allowing us to reason easier without needing to worry about side effects.

But how to compose pure functions into microservices, which are frequently created using the Scala futures and are therefore impure in nature? Is this an area in which we need to lose part of the pureness? Or is there an alternative?

Using http4s and doobie together it is possible to create a pure functional microservice in which side effects are pushed to the border of the application. This talk aimed at beginners shows how to do this.

Session length

40 minutes

Language of the presentation

English

Target audience

Beginner: No need to have prior knowledge

Who is your session intended to

People who have no or some experience with microservices and want to write them in a more functional way

Speaker

Jasper van Zandbeek (Freelance Scala Developer)