[Video] Where Blockchain Fits Into Enterprise Development

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This 60-minute video features Keyhole Principle Consultant David Pitt in December 2019 at the Hyperledger KC User Group sponsored by Keyhole Software. Copyright Keyhole Software, 2019.

Hyperledger Fabric is a general-purpose blockchain framework that allows groups and consortiums to share data securely and with providence. Hyperledger Fabric has Java, Go, and Node.js SDKs that allow client applications to interact with an HLF network.

While you don’t need to be a hardcore programmer, understanding basic programming concepts will be helpful in understanding the subject matter.

In this video, Keyhole Software Principal Consultant David Pitt discusses where he feels blockchain fits into modern business applications and how they can be architected. He introduces Hyperledger Fabric, a permissioned blockchain framework, and shows how it can be used to benefit enterprise due to its tamper-proof and distributed nature. In this presentation, David also introduces an open-source reference blockchain with a real use case applicable to global data.

Release: Byzantine API Gateway Tool

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The Keyhole Labs team is proud to announce the release of the Byzantine API Gateway, a new addition to our Byzantine Tools initiative.  The Byzantine API Gateway provides client access to a Hyperledger Fabric blockchain network through RESTful APIs. This addition joins a series of blockchain open source projects to enhance and accompany Hyperledger blockchain networks.

Keyhole Labs is a group within Keyhole dedicated to creating open source solutions that help software developers in their craft. Byzantine Tools is an extension of our Keyhole Labs open source initiatives with a more specific focus on blockchain technology.

While 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 to business benefits like lower costs, higher efficiency, and lower risk through decentralization and immutability.

Centralizing Configurations with Spring Cloud Config

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When the Microservices approach became popular a few years ago, many companies rushed to build their own microservices or to convert their legacy applications into microservices. Over the years, companies have implemented an abundance of microservices, mostly with Spring Boot. Each of them manage their own configurations across deployment environments like Dev, Test, and Prod.

Due to the nature of a complex business process, there are many common configurations (e.g. databases, queues, email servers, and FTP servers, etc.) used in the distributed services. This can result in services having redundant and confusing configs on a distributed system. It can become challenging to update the configs for too many services on a distributed system across multiple environments.

Thankfully, Spring Cloud Config provides the implementation to successfully resolve these issues. It provides server-side and client-side support for externalized configuration in a distributed system. With the Config Server, you have a central place to manage external properties for applications across all environments. The concepts on both client and server map identically to the Spring Environment and PropertySource abstractions, so they fit very well with Spring applications.

In this post, I’ll demonstrate Config Server and Client with example code. I’ll show you how to use Git or a local repository as a central place to store all the config files. The diagram below illustrates how the distributed client services (e.g. Investment Position/Price/Reporting Data service) fetch their configuration from the Config Server, which in turn retrieves them from one central place.

December 11: Accessing & Implementing Distributed Apps with Hyperledger Fabric

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Join us for the fourth learning event of the new Hyperledger Kansas City Meetup group – this time over the lunch hour!

Hyperledger Fabric a general-purpose blockchain framework that allows groups and consortiums to share data securely and with providence. This presentation will discuss and demonstrate how client applications can interact with a Hyperledger Fabric Distributed Ledger Network.

Hyperledger Fabric has Java, Go, and Node.js SDKs that allow client applications to interact with an HLF network. This presentation will be focused on demonstrating the Node.js SDK.

See Keyhole At The University of Arkansas Blockchain Hackathon

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Keyhole Software is excited to announce our very own David Pitt will providing a technical workshop at the University of Arkansas Blockchain Hackathon on November 6th, 2019 from 6 – 8 PM at the Doug McMillon Innovation Studio.

The University of Arkansas will be hosting its third annual Blockchain Hackathon taking place on November 8th – 9th in downtown Fayetteville. This year will be the first time ever the Blockchain Center of Excellence (BCoE) will be opening up this event to the community, instead of only to students. The diversity of ideas, backgrounds, and skills will make for the most interesting and exciting Blockchain Hackathon to date!

Before the main event, the University of Arkansas will be conducting technical workshops leading up to the Hackathon. These workshops will offer intimate and boutique experiences every night (November 3rd – 7th) to give attendees the opportunity to hear deeper informational sessions on specific blockchains, set-up programming environments, familiarize themselves with available resources, or even do a group exercise.