Feature Flags Book: Going Deep On Feature Flag Targeting

As web application developers, we generally communicate with the database anytime we need to gather information about the current request. These external calls are fast; but, they do have some overhead. And, the more calls that we make to the database while processing a request, the more latency we add to the response-time.

In order to minimize this cost, most feature flag implementations use an in-memory rules engine which allows feature flag state to be queried without having to communicate with an external storage provider. This keeps the processing time blazing fast! So fast, in fact, that you should be able to query for feature flag state as many times as you need to without having to worry about latency.

In 2023, I published a book titled, "Feature Flags: Transform Your Product Development Workflow". This book contains everything that I've learned over the last 7 years about integrating feature flags into my product development. But, a static book can only take you so far. In an effort to make the book more interactive, I've created a series of blog posts—one per chapter—that provide a place in which the readers and I can discuss the content. You can purchase the book and / or read a preview of each chapter on the book's mini-site. Feel free to leave a question or a comment down below.

• Of Outages And Incidents
• The Status Quo
• Feature Flags, An Introduction
• Key Terms And Concepts
• Going Deep On Feature Flag Targeting
• The User Experience (UX) Of Feature Flag Targeting
• Types Of Feature Flags
• Life-Cycle Of A Feature Flag
• Use Cases
• Server-Side vs. Client-Side
• Bridging The Sophistication Gap
• Life Without Automated Testing
• Ownership Boundaries
• The Hidden Cost Of Feature Flags
• Not Everything Can Be Feature Flagged
• Build vs. Buy
• Track Actions, Not Feature Flag State
• Logs, Metrics, And Feature Flags
• Transforming Your Company Culture
• People Like Us Do Things Like This
• Building Inclusive Products
• An Opinionated Guide To Pull Requests (PRs)
• Removing The Cost Of Context Switching
• Measuring Team Productivity
• Increasing Agility With Dynamic Code
• Product Release vs. Marketing Release
• Getting From No To Yes
• What If I Can Only Deploy Every 2 Weeks?
• I Eat, I Sleep, I Feature Flag

Short link: https://bennadel.com/4544