Best way to handle bad request in spring boot application.
Spring boot example to send email using replyTo option.
Serialize JSON in ordered properties in Java using Jackson library.
Spring boot example to using H2 DB with JPA. In this example I create one rest service with H2 DB.
CORS configuration example in spring boot using spring security CorsConfigurationSource, UrlBasedCorsConfigurationSource and WebSecurityCustomizer .
Learn how to process messages in order using Spring boot with RabbitMQ broker.
RabbitMQ is one of the most widely used open source message broker. This can be deployed on almost every moderns platforms and support various protocols.
Learn how to invoke sell command using Java.
Learn how to use Flyway db migration toll with spring boot projects.
Testcontainers is a very elegant, clean library to write Unit and Integration tests using docker containers, which provides almost real stacks for testing Java Spring applications.