The January/February issue of Java Magazine contains an introductory article I wrote on developing Java applications on the Ethereum blockchain with web3j. The magazine is free to read. Click preview this issue if you don't wish to provide your email address to access.
web3j's command line tools are now available on the excellent OS X package manager Homebrew. To install simply run: And away you go: For more information on using the command line tools, check out this post and the web3j documentation.
I spoke last week at the YOW! CTO Summit on blockchain technology and the state of the eco-system. The slides from the talk are available below.
I recently purchased a Ledger Nano S which is a great little hardware wallet that caters for both Bitcoin and Ether. Prior to purchasing my hardware wallet I had a lot of Ether in Ethereum wallet files on disk, which isn't a sustainable strategy for storing any cryptocurrency. Using the […]
I spoke this evening at the Sydney JVM Meetup about Ethereum and web3j. The slides from the talk are available below. Thanks to Pivotal Labs for sponsoring the event and Mitch for filming the talks, which are available here.
After announcing the 1.0 milestone of web3j, it was clear that there was demand for an Android port of web3j. As of the latest release - 1.0.5 of web3j, I am publishing Java 1.6 (i.e. Android) compatible releases. The first Android release is available here, and the artefacts are available […]
One of the challenges for developers working with libraries, is that they often end up writing utility tools to utilise certain library functionality from the command line. Not wanting this to be an issue for users of web3j, I am now releasing a stand-alone (fat-jar in Java speak) web3j command […]
Today web3j has hit the milestone 1.0 release, providing a number of key pieces of functionality for integrating Java applications with Ethereum: Complete implementation of Ethereum's JSON-RPC client API Ethereum wallet support Auto-generation of Java smart contract wrappers to create, deploy, transact with and call smart contracts from native Java […]
Arthur Falls of Consensys was in Sydney just after Devcon2 last month. During which time he interviewed myself and Nick Addison of Finhaus Labs about the work we'd been doing with Othera. I also provided an overview and background on web3j. We're the opening 15 minute segment in the podcast, […]
The last week marked the first release of web3j which I've been working on. web3j is a lightweight Java library for integration with clients (nodes) connected to the Ethereum blockchain. For those of you familiar with Nethereum, it serves a very similar purpose, except targeting developers on the Java Virtual […]