Flattening vs. Nested API Responses: Balancing Frontend Accessibility and Data Structure Integrity

Introduction & Problem Statement In the trenches of frontend development, the structure of API responses often becomes a silent battleground. The dilemma? Whether to preserve nested data structures for logical organization or flatten them for streamlined UI component development. This decision isn’t trivial—it directly impacts code readability, performance, and maintainability, especially as applications grow in complexity and API responses become more intricate. Consider the case of a developer consuming structured player data from an API. The response is neatly nested, grouping stats like speed, shooting, passing, dribbling, defense, and physical attributes. Accessing specific data requires navigating this hierarchy, e.g., player.shooting.stats.finishing. While this maintains logical organization, it introduces verbosity when building UI components. The alternative? Flattening the structure for easier access, but at what cost? The problem boils down to a trade-off: nested structu