Keyhole Announces Gold Dev Up 2018 Sponsorship & Speaker

Keyhole Software Articles, Community, Company News, Educational Event, GraphQL, Keyhole Leave a Comment

We are pleased to announce that Keyhole Software is a Gold Sponsor of the 2018 St. Louis Developer Conference! This will be the fourth year of Keyhole Sponsoring.

Formerly known as the St. Louis Days of .NET and rebranded as Dev Up during the 2015 conference, the 11th annual edition will bring together regional and national IT experts to share their knowledge for technology.

The Dev Up conference is October 8-10, 2018 at the St. Charles Convention Center in St. Charles, Missouri. Monday, October 8th features all-day hands-on sessions called “Pre-Compilers” which are optional. The main conference takes place on October 9th & 10th and features over 140 technical training sessions geared toward all levels of experience.

Hello Micronaut

Rik Scarborough Articles, 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 – Blockchain In Hyperledger: Better Than ETL?

A Keyhole Case Study 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 …

Keyhole Software Releases React Guitar Tuner Application

Keyhole Software Articles, Community, Company News, Keyhole, Keyhole Creations Leave a Comment

Keyhole Software is proud to announce the release of the Keyhole Guitar Tuner application. This open source application provides audio for tuning guitars.

With the free web application, users can select any listed guitar tuning note and various audio samples for each note are played. The application features different ways to listen to the tuning audio including playing a single note continuously, listening to the notes played in one strum, or playing the “tune” option that plays each note five times.

This application was built by…

Angular and Swagger: Experiences Learned

RJ Dela-Cruz Angular, Articles, Development Technologies & Tools, JavaScript 2 Comments

Recently I was fortunate enough to be a part of a project where we were building an application from scratch into an Angular front-end application with Microservices in the back end. Swagger was used as the contract between the UI and Microservices.

In this blog, I talk about the things I learned from this project experience, like how to use Swagger to define the endpoints of the Microservices, integrating Swagger-generated code into Angular, and working with configuration (including oAuth2 tokens), among other “gotchas…”