Learn how to create, test, and compare the back-end HTTP services in Scala.

Become a Scala Developer

In this module, we will explore the functional aspects of Scala. We will start by looking at a small use case. We will then learn the difference between pure and impure implementations by looking into referential transparency and how functional programming relies on it. We will then gradually implement the use case in both pure and impure ways. Moving ahead, we will simultaneously build, test, and document the implementations and point out the tools required along the way. By the end of this module, we will have a substantial understanding of how these techniques work, their pros and cons, and how pure implementation can be more robust.

Pure Functional HTTP APIs in Scala

## Product table

Slick offers several options for approaching the database. For our example, we will be using the lifted embedding, but if needed, Slick also provides the ability to perform plain SQL queries. For the lifted embedding, we have to define our tables in a way Slick can understand. While this can be tricky under certain circumstances, our simple model is straightforward to implement. 
 


# Product table

Slick offers several options for approaching the database. For our example, we will be using the lifted embedding, but if needed, Slick also provides the ability to perform plain SQL queries. For the lifted embedding, we have to define our tables in a way Slick can understand. While this can be tricky under certain circumstances, our simple model is straightforward to implement. 
 


Learn how to interact with the database using Slick.

Introduction

Impure Implementation

Pure Implementation

Testing Impure Services

Testing Pure Services

Benchmarks

Documentation

Conclusion

Slick Tables

Product table