Reading Time: 2 minutes This is a small blog post, in which we will go through the steps to add response compression in our Java-based Lagom service. If you are not familiar with the concepts of Lagom, read through this blog to gain a brief idea of what Lagom is all about. Then, come back here and we will add quickly add compression to the service you’d have implemented. Continue Reading
Reading Time: 7 minutes Lagom is a reactive microservice framework, which is increasingly becoming the go-to solution for building a microservice-based architecture for industry-wide services. In case you still haven’t heard of it, this blog post will not only familiarize you with the idea behind Lagom but will also walk you through some history of Lagom since its 1.0 launch, what’s new in the latest stable release, and some Continue Reading
Reading Time: 3 minutes In this blog, I will demonstrate how to implement JWT Authentication with Play Framework. JSON Web Token (JWT) is a compact, self-contained which means securely transfer the information between two parties. It can be sent via Post request or inside the HTTP header. This information can be verified and trusted because it is digitally signed. JWTs can be signed using a secret or a public/private key Continue Reading
Reading Time: < 1 minute Hello all, Knoldus organised a knolx session on the topic “Introduction to Swagger” on Friday, 28 October 2016. Swagger is a simple yet powerful representation of your RESTful API. With the largest ecosystem of API tooling on the planet, thousands of developers are supporting Swagger in almost every modern programming language and deployment environment.It specifies the format (URL, method, and representation) to describe REST web Continue Reading
Reading Time: 2 minutes I have started working on a project which require stress testing using Gatling. I Setup the sbt project on which gatling is working fine. But when I try to integrate it using play framework, it doesn’t work. The project structure for both are different so it doesn’t work for both the project in the same manner. Your build.sbt should be like this: import _root_.io.gatling.sbt.GatlingPlugin import Continue Reading
Reading Time: 2 minutes Knockout is a JavaScript library that is based on Model–view–viewmodel (MVVM) that helps to build responsive UI display. This makes a clear separation between the model(Domain model/ stored data), view(User Interface) and view-model(presentation of the model in which binder communicates between view and data-binder). Why Knockout js? 1. Declarative bindings: This is a convenient way to bind the Html to the data model. When we Continue Reading
Reading Time: 2 minutes In this post I’m going to talk about generating PDF documents in Play web application with the help of “play2-pdf plugin”. Firstly, I want to focus on the criteria that we consider or investigate while generating PDF in our projects: Is it server side or client side pdf generation as client side generation doesn’t work for JavaScript disabled browser. Whether its on the fly or Continue Reading
Reading Time: 2 minutes In my previous post, I tried to create a pure front-end application using Scala.js and ScalaCSS. So that we can build our front-end also in a typesafe way. But there was no server interaction. This time I have tried to make server interaction using play framework. Since this application is about Weather Information System, so I am hitting a third party api to get weather Continue Reading
Reading Time: 3 minutes PROBLEM While developing any web application most of us have seen a common glitch where by hitting ‘Back’ button of the browser after successful sign-out, we would still get to see the pages which should only be visible if our session is alive. PREREQUISITES The scenario I am referring to is the one where we have already handled all the cases in the server side code for redirecting Continue Reading
Reading Time: 3 minutes In this blog we would discuss about Messages and internationalization in Play Framework which would drive us through the implementation and testing of the Play MessagesAPI. Messages and internationalization Play supports Internationalization (i18n) out of the box by leveraging the underlying internationalization support. With Play you are able to customize the text that appears in a view based on the user’s Locale. Specifying languages supported Continue Reading
Reading Time: 2 minutes playing-reactjs This blog describes a basic example to render UI using React(A JavaScript library for building user interfaces) with Play 2.4.x, Scala, Anorm and WebJars. It also demonstrates the use of evolution in Play 2.4.x This is a classic CRUD application, backed by a JDBC database. It demonstrates: Handling asynchronous results, Handling time-outs Achieving, Futures to use more idiomatic error handling. Accessing a JDBC database, Continue Reading
Reading Time: < 1 minute Playing-Microservices This blog describes a basic Microservice architecture design using Play 2.4.X and Scala. The big idea behind microservices is to architect large, complex and long-lived applications as a set of cohesive services that evolve over time. The term microservices strongly suggests that the services should be small. In short, the microservice architectural style is an approach to developing a single application as a suite Continue Reading
