Release: Hyperledger Blockchain Analytics Tool

Keyhole Software Blockchain, Company News, Hyperledger, Java, JavaScript, Keyhole Creations, Node, React, Technology Snapshot Leave a Comment

We are proud to announce the new release of a Hyperledger Fabric Blockchain Browser open source web application. This application utility allows developers and operators of Hyperledger blockchain networks to have visibility into transactions and blocks as they are added to the network.

Capabilities
The KHS Blockchain Browser is a React/Node.js web application that…

Using Amazon ElastiCache for Redis To Optimize Your Spring Boot Application

Brandon Klimek AWS, Java, Spring, Spring Boot, Technology Snapshot 4 Comments

Has your project gotten to the point when big data sets and/or time-consuming calculations have begun to affect performance? Or are you struggling to optimize your queries and need to cache some information to avoid continually hitting your database? Then caching could be your solution.

For this article, I will demonstrate how to utilize Amazon ElastiCache for Redis to speed up areas of your application. The example application we will build uses Spring Boot 2.x and is available on Github.

Hello Micronaut

Rik Scarborough Java, Microservices, Testing Leave a Comment

From some of my previous posts, you can get the idea that I promote the idea of developing maintainable code rapidly. So I was pretty excited when I learned that the same group that was responsible for Grails was working on a similar project for Web Services. Hello, Micronaut.

In this post, I provide an introduction to the Micronaut framework and its features to provide a foundation for you to try it out yourself.

Case Study Published – Blockchain In Hyperledger: Better Than ETL?

Keyhole Software Blockchain, Java Leave a Comment

In general terms, a blockchain is an immutable transaction ledger in a distributed network of participating peers. Its data includes a string of transaction records secured with cryptography. Benefits of blockchain can include decentralization, immutability, provenance, and finality.

While Bitcoin and Ethereum cryptocurrencies brought blockchain to the forefront of technology headlines, the technology underneath has true potential value for the enterprise outside of the cryptocurrency space. The features provided by blockchain technology can lead business benefits like lower costs, higher efficiency, and lower risk. Seeing a technology actually applied reinforces understanding. It can also be a genesis for new ideas.

In this case study, we walk through a Hyperledger Fabric reference blockchain with a focus on showing the potential value for enterprise-level organizations.

The potential cost savings of blockchain is one of the benefits not really discussed as a whole. However, we at Keyhole believe it could be a significant feature benefit. The goal of this case study is to help reinforce this…

Java 10 and Local-Variable Type Inference

Robert Rice Java, Technology Snapshot Leave a Comment

JDK 10, an implementation of Java Standard Edition, was released in March 2018. It brought with it Local-Variable Type Inference to help simplify the writing of Java applications.

Basically, it’s a new syntax meant to reduce some of Java’s verbosity, while still maintaining the enforcement of static type safety. In simpler terms, you are able to declare variables, but won’t necessarily have to specify the type.

In this blog, I give recommendations for best practice when using Local-Variable Type Inference in JDK 10 with an eye for common var pitfalls…