A quick and practical guide to using custom protocol mappers with Keycloak.
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Spring REST API with Protocol Buffers
A quick and practical introduction to using Protocol Buffers with Spring REST APIs.
Introduction to Light-4J
Learn the core philosophy, key features, and architectural concepts of the Light-4j library.
Serialization with FlatBuffers in Java
Explore the FlatBuffers library and its capabilities to serialize and deserialize complex data.
A Guide to etcd
Explore etcd, an open-source distributed key-value store. Understand its fundamental concepts, features, and use cases with examples.
Amazon SNS vs. Amazon SQS
Learn about two of the top services that AWS provides to users: SNS and SQS.
Load Testing Rest Endpoint Using Gatling
Learn how to use Gatling to do performance testing on any Rest endpoint.
REST vs. GraphQL vs. gRPC – Which API to Choose?
REST, GraphQL, and gRPC are solutions to different problems when calling webservices. We look at how they differ and can be combined in our architecture.
Kong Ingress Controller with Spring Boot
Explore the use of the Kong Ingress Controller to manage access to a Spring Boot application deployed on a K8s cluster.
Guide to Simple Binary Encoding
Learn about Simple Binary Encoding (SBE): how to set it up, define the message structure via XML, and use it for messages in Java.
Import Data to MongoDB From JSON File Using Java
Learn how to import data to MongoDB from JSON files
SSO with Apache Tomcat
Learn how to configure SSO with Apache Tomcat.
Make a Call to a GraphQL Service from a Java Application
GraphQL is a standard for communicating with web services. We look at a few ways to access GraphQL endpoints from a Java application.
Using Spring Cloud Gateway with OAuth 2.0 Patterns
Explore some of the OAuth 2.0 security patterns and how to implement them using Spring Cloud Gateway.
Request Routing and Snitches in Cassandra
Learn about the job of a snitch and how Cassandra uses it to efficiently route requests.
Getting Started With Apache Derby
A quick guide to the Apache Derby open-source relational database engine, this article discusses all the major aspects from installing and configuring it to working with its various tools. It also shows how we can connect to it programmatically using plain JDBC and in a Spring Boot application.
Saving Date Values in Spring Data Cassandra
Learn how to use Spring Data Cassandra to save date values and map them to Cassandra data types.
Streaming with gRPC in Java
A quick and practical guide to gRPC streaming in Java.
Distributed Performance Testing with Gatling
A quick and practical introduction to distributed performance testing with Gatling.
Using Custom User Providers with Keycloak
Learn how to create a custom provider for Keycloak.