Book Image

Kotlin Programming By Example

By : Iyanu Adelekan
Book Image

Kotlin Programming By Example

By: Iyanu Adelekan

Overview of this book

Kotlin greatly reduces the verbosity of source code. With Google having announced their support for Kotlin as a first-class language for writing Android apps, now's the time learn how to create apps from scratch with Kotlin Kotlin Programming By Example takes you through the building blocks of Kotlin, such as functions and classes. You’ll explore various features of Kotlin by building three applications of varying complexity. For a quick start to Android development, we look at building a classic game, Tetris, and elaborate on object-oriented programming in Kotlin. Our next application will be a messenger app, a level up in terms of complexity. Before moving onto the third app, we take a look at data persistent methods, helping us learn about the storage and retrieval of useful applications. Our final app is a place reviewer: a web application that will make use of the Google Maps API and Place Picker. By the end of this book, you will have gained experience of of creating and deploying Android applications using Kotlin.
Table of Contents (12 chapters)

Implementing the messenger backend

Now that we have some sense of direction pertaining to the use cases of the messenger system as a whole, the data required within the system, and the behavior of the system, we can get started with developing the backend of the system. As we have said earlier, we will be utilizing Spring Boot to develop the messenger API because it is a perfect candidate for incremental development. In addition to this, Kotlin and Spring Boot function very well together.

As we will be handling data within the messenger API, we will need a suitable database to store the data needed by the messenger system. We will making use of PostgreSQL as our database. Let’s take a brief look at PostgreSQL.

PostgreSQL

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