Finding the best lagom java suitable for your needs isnt easy. With hundreds of choices can distract you. Knowing whats bad and whats good can be something of a minefield. In this article, weve done the hard work for you.
Reviews
1. Start Building RESTful Microservices using Lagom with Java: A Practical Approach to Modern, Domain-Driven, Event-Driven, Scalable and Reactive ... Java (Knoldus Reactive Programming Series)
Description
Book DescriptionToday most of the big successful applications are moving to microservices architecture. There have been lot of buzz around the word Microservices in the past few years. But just because something is buzzy doesnt mean we should start following it. It is really important to think about how you can get the hype to work in your application. Few years ago, applications were much simpler and required all solutions at one place, we call them monolithic applications. Now a days markets are changing rapidly. You either adapt quickly or you go out of business. If your application is successful, it will eventually grow and become huge with the frequent addition of new codes, thus overloading the IDE and reducing the developers productivity. Any minor malfunctioning in a single component can affect the entire application. These type of applications also have a barrier in adopting the new technologies because it will affect the entire application. In this book, you will learn how easily and effectively you can transform monolithic applications into microservices.
The microservices architectural style is an approach to developing a single application as a suite of small services. These services are built around business capabilities and are independently deployable by fully automated deployment machinery. The advantages of Microservices over the monstrous monolithic system have convinced some of the major enterprises like Netflix, Amazon, and eBay. Microservices can be developed using different programming languages. There are many frameworks available to build microservices but they are good at helping you building the first one and you are left alone with all the others. Lagom extends that to systems of microservices, and thus, building a larger system. There are many other reasons to use Lagom, which you will learn in this book. We have written this book for those who want to start developing REST API right away and have a basic understanding of Java. We don't exhaustively list all the features of Lagom. We don't make you suffer through long and contrived example. We have tried to explain every topic of this book with short and easy to understand examples along with the test-cases. Lagom is available for both Java and Scala but in this book, we will go with Java. We choose Java because it is the platform independence. Programs can run on several different types of computer, as long as the computer has a Java Runtime Environment (JRE) installed, a Java program can run on it. If you want to go with Scala, you can refer my another book "Start Building RESTful Microservices using Lagom". By the end of this book, you will be able to migrate a monolithic application to microservices based application. What You'll Learn- Advantage of using Microservices architecture over monolithic
- Introduction to Lagom
- Start building services in Lagom
- CQRS and Event Sourcing with Lagom
- Circuit Breakers
- Error Handling in Lagom
- Testing in Lagom
2. Start Building RESTful Microservices using Lagom: A Practical Approach to Modern, Domain-Driven, Event-Driven, Scalable and Reactive Microservices ... Scala (Knoldus Reactive Programming Series)
Description
Book DescriptionToday most of the big successful applications are moving to microservices architecture. There have been lot of buzz around the word Microservices in the past few years. But just because something is buzzy doesnt mean we should start following it. It is really important to think about how you can get the hype to work in your application. Few years ago, applications were much simpler and required all solutions at one place, we call them monolithic applications. Now a days markets are changing rapidly. You either adapt quickly or you go out of business. If your application is successful, it will eventually grow and become huge with the frequent addition of new codes, thus overloading the IDE and reducing the developers productivity. Any minor malfunctioning in a single component can affect the entire application. These type of applications also have a barrier in adopting the new technologies because it will affect the entire application. In this book, you will learn how easily and effectively you can transform monolithic applications into microservices.
The microservices architectural style is an approach to developing a single application as a suite of small services. These services are built around business capabilities and are independently deployable by fully automated deployment machinery. The advantages of Microservices over the monstrous monolithic system have convinced some of the major enterprises like Netflix, Amazon, and eBay. Microservices can be developed using different programming languages. There are many frameworks available to build microservices but they are good at helping you building the first one and you are left alone with all the others. Lagom extends that to systems of microservices, and thus, building a larger system. There are many other reasons to use Lagom, which you will learn in this book. We have written this book for those who want to start developing REST API right away and have a basic understanding of Scala. We don't exhaustively list all the features of Lagom. We don't make you suffer through long and contrived example. We have tried to explain every topic of this book with short and easy to understand examples along with the test-cases. Lagom is available for both Java and Scala but in this book, we will go with Scala. We choose Scala because it reduces the boilerplate code and we can concentrate on the logic of our problems. In Scala, you are not limited to just object-oriented patterns to implement your code, you can bring in functional paradigms as well. By the end of this book, you will be fully capable of setting up, modifying, and deploying a microservice with Lagom. You will know how to quickly build lighter and faster services that can be deployed easily in a production environment. You will be able to migrate a monolithic application to microservices based application. What You'll Learn- Advantage of using Microservices architecture over monolithic
- Introduction to Lagom
- Start building services in Lagom
- CQRS and Event Sourcing with Lagom
- Circuit Breakers
- Exception Handling in Lagom
- Testing in Lagom
- Lagom in Production
3. Learn Scala Programming: A comprehensive guide covering functional and reactive programming with Scala 2.13, Akka, and Lagom
Description
A step-by-step guide in building high-performance scalable applications with the latest features of Scala.
Key Features
- Develop a strong foundation in functional programming and Scala's Standard Library (STL)
- Get a detailed coverage of Lightbend Lagomthe latest microservices framework from Lightbend
- Understand the Akka framework and learn event-based Programming with Scala
Book Description
The second version of Scala has undergone multiple changes to support features and library implementations. Scala 2.13, with its main focus on modularizing the standard library and simplifying collections, brings with it a host of updates.
Learn Scala Programming addresses both technical and architectural changes to the redesigned standard library and collections, along with covering in-depth type systems and first-level support for functions. You will discover how to leverage implicits as a primary mechanism for building type classes and look at different ways to test Scala code. You will also learn about abstract building blocks used in functional programming, giving you sufficient understanding to pick and use any existing functional programming library out there. In the concluding chapters, you will explore reactive programming by covering the Akka framework and reactive streams.
By the end of this book, you will have built microservices and learned to implement them with the Scala and Lagom framework.
What you will learn
- Acquaint yourself with the new standard library of Scala 2.13
- Get to grips with the Grok functional paradigms
- Get familiar with type system to express domain constraints
- Understand the actor model and different Akka libraries
- Grasp the concept of building microservices using Lagom framework
- Deep dive into property-based testing and its practical applications
Who this book is for
This book is for beginner to intermediate level Scala developers who would like to advance and gain knowledge of the intricacies of the Scala language, expand their functional programming tools, and explore actor-based concurrency models.
Table of Contents
- An Introduction to the Scala 2.13 standard library
- Understanding Types in Scala
- Deep Dive into Functions
- Getting to know Implicits and Type Classes
- Property based testing in Scala
- Exploring Build-in Effects
- Understanding Algebraic Structures
- Dealing with Effects
- Familiarizing Yourself with Basic Monads
- A Look at Monad Transformers and Free Monad
- An Introduction to Akka and Actor Models
- Building Reactive Applications with Akka Typed
- Basics of Akka Streams
- Building Microservices with Scala
- Building Microservices with Lagom
- Preparing the environment and running code samples