The connection pool is how we control the maximum number of connections open to a certain server or database. This is how we save and use resources rationally, avoiding waste. No server can handle an unlimited number of connections! When working with a reactive database… Read More
I introduced you to the Reactive Relational Database Connectivity (R2DBC) specs, about the Service Provider Interface library and the drivers that implement this SPI library in the previous tutorial. If your application uses Spring framework and wants to manipulate the database in a reactive mechanism,… Read More
Unlike the flatMap() method, the map() method of the Mono/Flux object in the Project Reactor will process the item being emitted, synchronously: In the image above, green, yellow, and blue items emitted by Publisher will be processed by the map() method synchronously. The return result… Read More
With RESTful API, you can use the OpenAPI Generator Maven plugin to generate source code and just add implementation for APIs. With GraphQL, you can also do this using the GraphQL Maven plugin. How is it in detail? Let’s find out together in this tutorial!… Read More
In the previous tutorial, I showed you how to use the Springfox library to create RESTful API documentation according to OpenAPI specification in Spring Boot applications. But Springfox has been out of date for a long time and the springdoc-openapi library is updated continuously and… Read More
In the previous tutorial, I showed you how to create a Maven Archetype for a normal Maven project. For Maven multi-module projects, how to create Maven Archetype? We will find out together in this article! As an example, I will take an example project of… Read More
OpenFeature is an open standard that makes it possible to implement the concept of feature flags, on or off features of an application. To use OpenFeature, we need to have a service running outside the application that acts as a provider so that we can… Read More
In the previous tutorial, I showed you how to add custom metrics using OpenTelemetry SDK metrics and I also used Logging exporter to log this metrics information to the console. In this tutorial, I will show you how to integrate Prometheus with OpenTelemetry using Prometheus… Read More
I introduced you to Clean Architecture and also showed you how to build a Spring Boot project following Clean Architecture. Realizing that initializing the Spring Boot project following Clean Architecture is quite a lot of stages, I built a Maven Archetype to make this simpler.… Read More
In the previous tutorial, I guided you through OpenTelemetry with the Logging exporter to log information about requests to the application. By default, we will see mainly information about tracers logged. To display more information about metrics, you can add additional code using the OpenTelemetry… Read More
