In software development there is a big number of cases when you need somehow to catch a request coming to server and do some pre-processing or post-processing. For example, it is must for…
Archives
Router functions play a similar role in Spring Webflux as controllers in Spring MVC. Both are responsible for handling HTTP requests/responses. However, compare to controllers, new approach is not represented by a single…
In Spring MVC a server-side validation was implemented using annotations. We could just put @Valid before the body payload in the controller method and Spring did all dirty work for us. On the…
The iterator pattern is one of approaches to access elements of a collection, alongside with streams. From a technical point of view, the iterator traverses elements in a sequential and predictable order. In…
Eclipse Vertx is a robust technology to build reactive microservices or serverless functions. When you develop such applications, the role of server side validation rises. In traditional web applications we combine both client-side…
When you are working on any somehow complex application, you need to enable validation. For example, if user submits a form or a request, your app should check, that data is in an…
Recently I started to learn Clojure, and usually, my first phase is to complete small programming exercises. To practice Clojure I decided to solve some CodingBat problems. A common task here is to…
In some form or another, but exceptions exist in almost any languages. Due to the fact, that Clojure actually runs on JVM, it inherits its exception system from Java. From a technical point…
An authentication with tokens became a must-have feature for modern web apps. It suits natively to single page applications and mobile applications. While Spring is de facto standard in Java ecosystem, there are…
When we talk about Java collections, we consider two things. First, more wide concept, means implementations of common data structures. An another, narrow understanding, corresponds to concrete interfaces and their implementations, that are…
Older Posts »
Page 1 of 2