75 posts tagged with "legacy"

Growing up as a child of the ’90s has always been a bitter-sweet kind of experience, but it certainly also came with a multitude of benefits. We’ve been exposed to countless priceless moments that have come and passed, moments that stand to make history and which may never be experienced again by newer generations. One such example of a beautiful lived-through historical moment is growing up with the fabled Space Invaders game.

Simple yet memorable, Space Invaders made waves across the world and undoubtedly served as a catalyst for the revival of a previously stale and dying gaming industry that’s now priced at no less than 173.7 billion USD.

Let's take a look at how practical a feature flag can be in a Phaser.io application. Phaser is one of the most popular browser game libraries and with its help, I'll build a simple game that replicates the experience of being in a music studio. Let's get started!

Feature flags have greatly simplified the process of continuously testing and integrating new features into our applications. They ensure confidence even in production environments, eliminating deployment risks such as downtimes or bugs that could adversely affect the entire user base.

Let's play with a hypothetical scenario where you've built a Kotlin-based mobile application, and you'd like to customize the overall user experience based on specified criteria. You've got a perfect idea, but then this question pops up everywhere: Now what? Folks, allow me to introduce you to the concept of feature flags in Kotlin.

At the beginning of this year, Andrew Reeman from Control Point was kind enough to join our conversation about what we actually do differently at ConfigCat, or at least interesting enough so that it only makes sense for our clients to stick with us and for those who didn’t try our approach and products, to do so.

When growing any product or service, it’s to constantly gather feedback from your user base. And I mean constantly, else you risk losing focus from your real clients’ needs and priorities.

Let’s Talk Real-World Experiences​

To drive this point home, I figured that the best course of action was to collect some valuable insight from a third-party. Joseph Harris, who works at Eucalyptus was kind enough to take the time and offer just that.

Thanks to the latest CI/CD tools and services, software companies can now deliver multiple releases in a week. Over the release process, it's expected that DevOps professionals keep their eyes on the monitoring dashboard and roll-back the deployment on the first suspicion. Since the use of feature flags gets more and more traction, it seems like a good idea to connect those releases and the monitoring tools.

Focusing on frontend applications, we introduced sensitive text comparators to make sure sensitive info (like email address, username) is kept hidden in targeting rules.

The main idea about our pricing is that our prices are fixed, deterministic and there are no hidden fees. Also we offer a forever free plan without requiring any commitment or credit card information. All features are available in all plans - even the free - helping the evaluation process of our customers.

There is a way to stream feature flag and configuration changes to the clients right when they happen. In some cases ConfigCat's pull based architecture does not completely satisfies the requirements when microservices need the latest values instantly, or mobile apps where polling sometimes is a battery consuming anti-pattern.

TL;DR​

Your application subscribes to a PubNub channel to get updates about changes. And use ConfigCat Webhooks to notify PubNub when a feature flag value gets updated.