Hapi
Hapi is a rich Node.js framework for building applications and services, known for its configuration-centric approach and robust plugin system. It provides a powerful set of tools for handling HTTP requests, input validation, caching, authentication, and more, with a focus on security and reliability. Originally developed by Walmart Labs, it is widely used for creating scalable APIs and web applications.
Developers should learn Hapi when building enterprise-grade APIs or microservices that require strong security, extensive configuration options, and a modular architecture. It is particularly useful for projects needing built-in input validation, authentication strategies, and detailed logging, making it ideal for financial, e-commerce, or large-scale backend systems where reliability is critical.