Lanky Dan Blog

Dan Newton

The potential traps in Kotlin's Data Classes

August 17, 2019
kotlin

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
cordakotlindltdistributed ledger technologyblockchain

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…

Flows can do anything

July 30, 2019
cordakotlindltdistributed ledger technologyblockchain

In Corda, Flows can do a lot more than proposing new transactions to record between organisations. Although, saying they can do anything…

Ktor - a Kotlin web framework

July 24, 2019
kotlinktor

Ktor is an asynchronous web framework written in and designed for Kotlin. Allowing the more impressive features of Kotlin, such as…

Saving transactions where only a subset of parties are signers

July 05, 2019
cordakotlindltdistributed ledger technologyblockchain

It took a while for me to think of a title that could summarise the contents of this post without becoming a full sentence itself. I think I…

Kotlin primitive and object arrays

June 21, 2019
kotlinjavabeginner

I initially set out to write this post because I was playing around with some reflection code and thought I found something interesting…

Preventing invalid spending of broadcasted states

June 12, 2019
cordakotlindltdistributed ledger technologyblockchain

Corda is super flexible and will allow you to put together the code needed to write many complex workflows. This flexibility does come with…

Broadcasting a transaction to external organisations

May 31, 2019
cordakotlindltdistributed ledger technologyblockchain

There is a misconception that Corda cannot broadcast data across a network. This is simply wrong. In fact, Corda can send anything between…

Running a Kotlin class as a subprocess

May 25, 2019
kotlin

Last week I wrote a post on running a Java class as a subprocess . That post was triggered by my need to run a class from within a test…

Extending Flows to customise transaction validation

May 18, 2019
cordacorda 4kotlindltdistributed ledger technologyblockchain

Through the use of flow extension, nodes running the same CorDapp can include extra validation to ensure that a transaction meets their…

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