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Tag Archives: Spring

Streaming live updates from a reactive Spring Data repository

This post details a naive implementation of streaming updates from a database to any other components that are interested in that data. More precisely, how to alter a Spring Data R2DBC repository to emit events to relevant subscribers. A little bit of background knowledge of R2DBC and Spring will be helpful for this post. My previous writings, Asynchronous RDBMS access ...

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Monitor Your Java Apps with Spring Boot Actuator

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Friends don’t let friends write user auth. Tired of managing your own users? Try Okta’s API and Java SDKs today. Authenticate, manage, and secure users in any application within minutes. Have you worked with Spring Boot Actuator yet? It’s an immensely helpful library that helps you monitor app health and interactions with the app – perfect for going to production! ...

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Chicken and egg – resolving Spring properties ahead of a test

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Consider a service class responsible for making a remote call and retrieving a detail: 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 ... public class CitiesService {     private final WebClient.Builder webClientBuilder;     private final String baseUrl;       public CitiesService(             WebClient.Builder webClientBuilder,             @Value("${cityservice.url}") String baseUrl) {         this.webClientBuilder = webClientBuilder;         this.baseUrl = baseUrl;     } ...

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Simple Authentication with Spring Security

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Friends don’t let friends write user auth. Tired of managing your own users? Try Okta’s API and Java SDKs today. Authenticate, manage, and secure users in any application within minutes. Authentication is vital to all but the most basic web applications. Who is making the request, wanting data, or wanting to update or delete data? Can you be sure that ...

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Java Microservices with Spring Cloud Config and JHipster

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Friends don’t let friends write user auth. Tired of managing your own users? Try Okta’s API and Java SDKs today. Authenticate, manage, and secure users in any application within minutes. Developing a microservice architecture with Java and Spring Boot is quite popular these days. It’s definitely one of the most popular combinations in the Java ecosystem. If you need any ...

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Spring with Rails’ jQuery UJS

I’ve always wanted to try to see if I could use Rails’ jQuery UJS in a Spring Boot project. The UJS in jquery-ujs stands for unobtrusive JavaScript. I really like how UJS wires event handlers to eligible DOM elements marked with HTML5 data-* attributes. I find myself wanting to see more of this approach being used in Spring Boot web ...

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Java Microservices with Spring Boot and Spring Cloud

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Friends don’t let friends write user auth. Tired of managing your own users? Try Okta’s API and Java SDKs today. Authenticate, manage, and secure users in any application within minutes. Java is a great language to use when developing a microservice architecture. In fact, some of the biggest names in our industry use it. Have you ever heard of Netflix, ...

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A Quick Guide to Spring Boot Login Options

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“I love writing authentication and authorization code.” ~ No Java Developer Ever. Tired of building the same login screens over and over? Try the Okta API for hosted authentication, authorization, and multi-factor auth. In this post, you’re going to work through various options for implementing a login feature using Spring Boot 2.1. You’ll start with the most simple, basic auth, ...

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Callback hell and Reactive patterns

One of the ways that I have better understood the usefulness of aReactive Streams based approach is how it simplifies a Non-blocking IO call. This post will be a quick walkthrough of the kind of code involved in making a synchronous remote call, then show how layering in Non-blocking IO though highly efficient in the use of resources(especially threads) introduces ...

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