Lanky Dan Blog

Responder flow validation (part 3 - overriding)

January 06, 2020
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To finish off my trilogy of blog posts on including validation inside your responder flows, I present to you the final topic. How to…

Responder flow validation (part 2 - extension)

December 10, 2019
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In Responder flow validation I closed the post with the following: How can I enforce the rules of my business when the logic inside a…

Responder flow validation

November 25, 2019
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Do you want to prevent your node from accepting transactions that are not important to your business? Do you want to prevent your node from…

Common CorDapp mistakes and how to fix them

November 23, 2019
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This is the talk I gave at CordaCon in October. Title: A tale of Corda Slack adventures - Common CorDapp mistakes and how to fix them The…

Sometimes, it's better to not do your work

November 20, 2019

It’s 11 o’clock and I am finally doing my own work… I typically say this line to my colleague almost every day. I used to mean it (albeit…

Augmenting a Spring Data repository through delegation

September 14, 2019
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I have recently written several posts about Kotlin’s delegation. In doing so, I realised a useful way to apply it to Spring Data…

Implementing multiple interfaces through delegation

September 05, 2019

In Kotlin, a class can implement multiple interfaces. This is common knowledge. A class can also use delegation to implement numerous…

Streaming live updates from a reactive Spring Data repository

August 29, 2019
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This post details a naive implementation of streaming updates from a database to any other components that are interested in that data…

The potential traps in Kotlin's Data Classes

August 17, 2019

The aim of this post is not to point out some massive flaws in Kotlin’s design of data classes and show you how to get passed them. Actually…

Connecting a Ktor web server to a Corda node

August 12, 2019
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The preparation for this blog post began several weeks ago (probably over a month by now). Before I could write about melding Corda and Ktor…

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