Web Development Business

Blood, Sweat, and Writing Automated Integration Tests for Failure Scenarios

Billy Korando Java, Opinion, Programming, Spring, Tutorial 2 Comments

I introduce the process I went through to diagnose the bug and determine the correct integration test solution to fix it the right way. In doing so, I had to create a test that accurately reproduced the scenario my service was experiencing in PROD. I had to create a fix that took my test from failing to passing. And finally, I worked to increase confidence in the correctness of code for all future releases, which is only possible through automated testing.

data sanitization

Sanitize: Good for Beer, Good for Data

Jeremy Gard Databases, Design, JavaScript, Programming Leave a Comment

When it comes to brewing, one of the most critical considerations is sanitization. The same fact can be said for development. In brewing you can introduce unintended flavors, create a lesser end product, or completely ruin your hard work. With development, you can introduce inaccuracies or bad data, errors can be caused or exposed to attack, and security holes can be created.

With best practices in sanitization, we can all enjoy better applications and better beer. In this blog, I discuss the importance of data sanitization in development (with tips for success), with parallels to sanitization in brewing.

JSON Web Tokens

JSON Web Tokens With Spring Cloud Microservices

Thomas Kendall Java, JavaScript, Microservices, Security 3 Comments

At Keyhole, we have published several blogs about Microservices. We’ve talked about architectural patterns used in a Microservices environment such as service discovery and circuit breaker. We’ve even posted blogs on platforms and tools, such as the recent blog on Service Fabric. One important piece of the architecture that we have glossed over is the security around Microservices. Specifically, authentication …

Web Development Business

SQL for Application Developers

Mark Adelsberger Databases, Programming, Technology Snapshot Leave a Comment

“SQL? Isn’t that just something my ORM tools use?” Often application developers can and should remain at least one level removed from SQL. JPA and the Entity Framework each provide more abstract (and OO-friendly) query languages, and it’s often unnecessary to write any queries at all. If you ever diagnose production support issues, though, being proficient with SQL can greatly …

Cloud Computing

New Accounting Regulation May Affect Your Company’s IT Decisions

Melissa Conaghan Business, Opinion Leave a Comment

It’s time to make decisions about how to use the 2016 IT budgets. You, the CIO, may have already decided which prepackaged software, cloud services, or internally developed programs are best for your company, but now you are forced to obtain approval from the other executives, such as the CFO. As a public company, the executives are always concerned about …

Trouble Maker

Failure As A Use Case: Introducing Trouble Maker

David Pitt Keyhole Creations, Microservices, Programming, Technology Snapshot, Testing Leave a Comment

For too many reasons to count, it is nearly a guarantee that your production software systems will fail in some way. We attempt to QA our software, which essentially tests application “business” function, but it’s very difficult to test what can go wrong in an actual production environment. Things like memory utilization and leaks, port exhaustion, connection pool timeouts, too …


Shrinkwrap before (or after) it’s too late!

Luke Patterson Docker, Programming, Technology Snapshot 2 Comments

This happened to me… Twas the night before beta launch… I installed a new node module for a last minute feature and everything went haywire when the change was deployed. I reverted the code change and built again but everything was still all messed up. What happened? Long story short, I kicked myself for not shrinkwrapping my dependencies while I …


Spring Integration With JMS

Ryan McCullough Architecture, Java, Programming, Spring, Technology Snapshot, Tutorial Leave a Comment

What is Spring Integration? The popular definition (via Google), JavaWorld.com says: “Spring Integration is an enterprise integration framework that provides out-of-the-box implementation of the patterns in the now-classic Enterprise Integration Patterns…” Spring.io defines it as: “Spring Integration enables lightweight messaging within Spring-based applications and supports integration with external systems via declarative adapters” If you are a Spring Integration pro, this article may not be …

Web Development Business

Starting your own web development business

Matt McCandless Consulting, Opinion, Programming, Technology Snapshot 2 Comments

So you think you have finally arrived! You have “mastered” a handful of technologies that allow you to create a website solution from a full stack standpoint. You have experience setting up a database, experience in some language or a couple options, and you know your way around CSS well enough to make a shiny looking product. So then the …