Since TypeScript types do not persist at runtime, a challenge lies in ensuring the accuracy of data structures when transferred to the frontend of JavaScript applications. Without proper validation, errors may occur unpredictably due to incorrect data structures. To improve this situation, there is a need to check the data immediately after it arrives at the frontend, and we should reject it if it doesn't match our expectations. This results in a clean and slim architecture in the frontend of our applications.

Delivered at API Conference Lagos 2024, this talk addressed this challenge using the ZOD validation library to validate data upon arrival; birthing a cleaner frontend architecture.