Book Image

Hands-On Serverless Applications with Kotlin

By : Hardik Trivedi, Ameya Kulkarni
Book Image

Hands-On Serverless Applications with Kotlin

By: Hardik Trivedi, Ameya Kulkarni

Overview of this book

Serverless is a cloud computing execution model where the cloud provider dynamically manages the allocation and provisioning of servers. Many companies now use serverless architectures to cut costs and improve scalability. Thanks to its concise and expressive syntax and a smooth learning curve, Kotlin is a great fit for developing serverless applications. With this book, you’ll be able to put your knowledge to work by implementing serverless technology in your applications and become productive in no time. Complete with detailed explanation of essential concepts and examples, this book will help you understand the serverless architecture fundamentals and how to design serverless architectures for your applications. You’ll also explore how AWS Lambda functions work. The book will guide you in designing, building, securing, and deploying your application to production, along with implementing non-functional requirements such as auditing and logging. Furthermore, you’ll discover how to scale up and orchestrate serverless applications using an open source framework and handle distributed serverless systems in production. By the end of the book, you’ll be able to build scalable and cost-efficient Kotlin applications with a serverless framework.

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Table of Contents (11 chapters)
Preface
Preface
Introduction
Who this book is for
What this book covers
To get the most out of this book
Get in touch
Free Chapter
1
Basics of Serverless
Basics of Serverless
What is serverless computing?
The evolution of serverless computing
Pros and cons of serverless
The serverless computing ecosystem
Summary
2
AWS Serverless Offerings
AWS Serverless Offerings
AWS Lambda overview
Summary
3
Designing a Kotlin Serverless Application
Designing a Kotlin Serverless Application
The problem statement
Summary
4
Developing Your Serverless Application
Developing Your Serverless Application
Preparing the serverless environment
Implementing lambda functions
Implementing other lambda functions in Kotlin
Implementation of the app
Integrating the API
Summary
5
Improving Your App with Firebase Service
Improving Your App with Firebase Service
About Firebase
Firebase authentication
Firebase cloud functions
Saving data into the real-time database
Monitoring crashes
Monitoring the application's performance
Summary
6
Analyzing Your Application
Analyzing Your Application
What are non-functional requirements?
AWS CloudTrail
AWS CloudWatch
A practical walk-through
Summary
7
Secure Your Application
Secure Your Application
AWS security concepts
Infrastructure hardening
Practical walk–through
Summary
8
Scale Your Application
Scale Your Application
Infrastructure as code
Serverless Framework
Practical walk-through
Caveats while scaling Serverless applications
Summary
9
Advanced AWS Services
Advanced AWS Services
AWS Cloud9
AWS Alexa
Summary
10
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Saving data into the real-time database

The Firebase real-time database is a cloud-hosted database. Data is stored as JSON and synchronized in real-time to every connected client. When you build cross-platform apps with our iOS, Android, and JavaScript SDKs, all of your clients share one real-time database instance and automatically receive updates with the newest data.

Real-time databases offer support for Android, iOS, Web, and Admin. The Firebase real-time database admin is very interesting. With the Admin SDK, you can read and write real-time database data with full admin privileges, or with finer-grained limited privileges. In this section, we'll guide you through adding the Firebase Admin SDK to your project to access the Firebase real-time database.

It is also interesting to know how we can structure data. Read more at https://firebase.google.com/docs/database/admin...

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