Pure Functional HTTP APIs in Scala

Explore creating robust HTTP services in Scala's functional programming paradigm. Gain insights into pure vs. impure implementations, their pros and cons, and effective tool usage.

Beginner

53 Lessons

26h

Certificate of Completion

Explore creating robust HTTP services in Scala's functional programming paradigm. Gain insights into pure vs. impure implementations, their pros and cons, and effective tool usage.

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Explanations

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This course includes

10 Playgrounds

This course includes

10 Playgrounds

Course Overview

Scala is one of the most popular general-purpose languages that supports both object-oriented and functional programming. In this course, you will learn how to create back-end HTTP services using Scala's functional programming paradigm. You will also learn how to develop, test, and document the service using both pure and impure ways. You will be exposed to the differences between pure and impure implementation, their respective pros and cons, and how pure implementation can be more robust in terms of perf...Show More

What You'll Learn

Develop, test, and document the back-end HTTP services using functional programming paradigm.

Learn the pros and cons of Pure and Impure functional programming techniques.

By the end, you will have a firm hold of functional programming in Scala.

What You'll Learn

Develop, test, and document the back-end HTTP services using functional programming paradigm.

Course Content

Introduction

Get familiar with building and managing functional, pure, and impure Scala backend services.

What is This Course About?

Service Specification and APIs The State of the Art An Alternate Way Quiz on Functional Programming in Scala

Impure Implementation

Discover the logic behind building Scala-based HTTP APIs with Akka-HTTP, Slick, and PostgreSQL.

Getting Started Models Setting Up the Database Slick Tables Functions for Data Access Akka-HTTP Routes Some More Routes Interact with the Service Quiz on Impure Service Implementation

Pure Implementation

Work your way through building pure functional HTTP APIs in Scala using libraries and techniques.

Getting Started Pure Configuration Handling Models Database Doobie Functions for Data Access Http4s Routes Streaming JSON Trouble Starting the Application Quiz on Pure Service Implementation

Testing Impure Services

Enhance your skills in testing Scala's HTTP APIs with unit, integration tests, and ScalaCheck.

About Tests Generators Unit Tests Refactor the Code Setting Up Integration Tests Testing the Repository Testing the Routes: Setup Testing the Routes: Use Case - Loading Testing the Routes: Use Case - Saving Testing the Routes: Use Case - Updating Carrying Out Tests

Testing Pure Services

Map out the steps for unit and integration tests of Scala HTTP API services.

Setting Up Unit Tests Unit Tests for Product Routes Part 1 Unit Tests for Product Routes Part 2 Unit Tests for Products Routes Part 3 Integration Tests Setup Integration Tests Carrying Out Tests

Benchmarks

2 Lessons

Tackle performance advantages of pure functional implementations in handling requests and updates.

Documentation

7 Lessons

Master the steps to document APIs effectively using Scala, Tapir, and OpenAPI.

Epilogue

1 Lesson

Get familiar with pure functional programming benefits, testability, and future opportunities.

Course Author

Trusted by 1.4 million developers working at companies

Anthony Walker

@_webarchitect_

Emma Bostian 🐞

@EmmaBostian

Evan Dunbar

ML Engineer

Carlos Matias La Borde

Software Developer

Souvik Kundu

Front-end Developer

Vinay Krishnaiah

Software Developer

Eric Downs

Musician/Entrepeneur

Kenan Eyvazov

DevOps Engineer

Anthony Walker

@_webarchitect_

Emma Bostian 🐞

@EmmaBostian

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