Dan Newton articles - 60 total
I rarely need Stack Overflow anymore
I noticed recently that my dependence on Stack Overflow and similar platforms has wained as I have...
Using GraphQL Java with Spring
GraphQL Java is one of the most popular GraphQL server-side implementations for Java that I've found...
Intro to Kafka - Ordering related records
Ordering records in Kafka requires you to make a conscious decision to construct your system in a way...
Intro to Kafka - Consumer groups
Consumers can form groups, aptly named “consumer groups”. These consumer groups determine what...
Intro to Kafka - Consumers
Consumers make up the Kafka client code that reads records from topics, working at the opposite end...
Intro to Kafka - Producers
Producers make up the Kafka client code that sends records to topics. These clients dramatically...
Intro to Kafka - Topics and partitions
Topics Kafka, at a high level, stores records in topics. When handing a new record off to...
What The Mandalorian (season 2) teaches us about Software Engineering
Season 2 of The Mandalorian isn't just a great TV programme that is exciting from start to finish. It...
Building a REST API with Quarkus
Quarkus is a Java framework designed to run within containers. Focusing on fast start-up times and...
Cancelling child coroutines
Following on from my previous post, Cancelling coroutines, we will look at how cancelling a coroutine...
Missing @EntityScan annotation in Spring Data Neo4j
Not including the @EntityScan annotation and specifying the correct packages in your Spring Data...
Mapping a path in Spring Data Neo4j
Spring data does a lot to help you focus on writing your cypher queries while it handles mapping the...
Mapping a path query in Spring Data Neo4j
Spring data does a lot to help you focus on writing your cypher queries while it handles mapping the...
Java friendly Kotlin - default arguments
Kotlin functions and constructors can define default arguments, allowing calls to them to skip any...
Transaction savepoints in Spring JDBC
Savepoints allow you to create markers within a transaction which you can rollback to, without...
Cancelling coroutines
Sooner or later, you will need to cancel a coroutine that you started. Let’s look at how you can do...
Waiting for coroutines
Coroutines allow you to execute tasks asynchronously without blocking the calling thread, such as the...
Java friendly Kotlin - static functions
In this post, we will look at writing static functions in Kotlin that treat Java callers as...
Launching your coroutine knowledge
Coroutines are essentially lightweight threads that allow your applications to squeeze more juice out...
Defined by failure - How failure fueled my improvement
I am going to go with a more personal blog post today. This is something that I have wanted to write...
Calling Java Functional Interfaces from Kotlin
Basics Below is a Functional Interface defined in Java: // Standard Java...
Serializable Java Lambdas
Recently I was presented with the following error when serializing a lambda with...
Sometimes, it's better to not do your work
It’s 11 o’clock and I am finally doing my own work… I typically say this line to my colleague...
Augmenting a Spring Data repository through delegation
I have recently written several posts about Kotlin’s delegation. In doing so, I r...
Implementing multiple interfaces through delegation
In Kotlin, a class can implement multiple interfaces. This is common knowledge. A class can also use...
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...
The potential traps in Kotlin's Data Classes
The aim of this post is not to point out some massive flaws in Kotlin’s design of data classes and...
Corda - Connecting a Ktor web server to a Corda node
The preparation for this blog post began several weeks ago (probably over a month by now). Before I...
Corda - Flows can do anything
In Corda, Flows can do a lot more than proposing new transactions to record between organisations....
Ktor - a Kotlin web framework
Ktor is an asynchronous web framework written in and designed for Kotlin. Allowing the more...