Learn how to create a PostgreSQL schema before Liquibase execution in Spring Boot.
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Dynamically Register Spring Beans Based on Properties
Learn how to dynamically register beans based on custom properties.
Dynamically Managing Kafka Listeners in Spring Boot
Learn how to manage Kafka Listeners dynamically in Spring Boot.
Querydsl vs. JPA Criteria
Discover the differences and similarities between JPA Criteria and Querydsl.
Commit Offsets in Kafka
Learn about offset commits in Kafka.
OpenAPI Generator Custom Templates
Learn how to use OpenAPI Generator Custom Templates to generate customized client and server code from REST API definitions.
Migrate Application from Spring Security 5 to Spring Security 6/Spring Boot 3
In this tutorial, we learn how to migrate an existing application using Spring Security 5 to Spring Security 6.
Implementing GraphQL Mutation Without Returning Data
Explore techniques for implementing GraphQL mutations without retrieving or returning specific information.
Spring Data JPA Repository for Database View
Learn how Spring Data repositories can be effectively applied to database views
Difference Between GroupId and ConsumerId in Apache Kafka
Learn the difference between GroupId and ConsumerId in Apache Kafka.
Testcontainers Desktop
Learn how to use the Testcontainers Desktop application, a simple yet powerful tool for running Testcontainers.
Message Acknowledgement in Spring Cloud AWS SQS v3
Learn how to use the Spring Cloud AWS SQS v3 library to interact with AWS queues with different message acknowledgement modes.
OAuth2 Backend for Frontend With Spring Cloud Gateway
In this tutorial, we implement the OAuth2 Backend for Frontend (BFF) pattern with Spring Cloud Gateway and spring-addons.
Calling Custom Database Functions With JPA and Spring Boot
Explore various approaches to calling custom database functions within JPA and Spring Boot applications.
Understanding Kafka InstanceAlreadyExistsException in Java
Explore the significance of the InstanceAlreadyExistsException within Apache Kafka and how to mitigate the issue.
Run Maven From Java Code
Learn how to interact with Maven and run builds directly from the code.
Custom JSON Deserialization Using Spring WebClient
Learn about custom deserialization and how this can be implemented using Spring WebClient.
Access Job Parameters From ItemReader in Spring Batch
Explore how to work with JobParameters and how to access them from Spring Batch components.
Set an Environment Variable at Runtime in Java
Learn how to have more control over the environment variables, especially for test scenarios.
Monkey Patching in Java
Learn how monkey patching can be used in Java, when to use it, and its drawbacks.