Summary
This chapter provided information on additional features of Flask that can support building complete, enterprise-grade, scalable, and complex but manageable Flask web applications. The details about adding error handling in many ways, integrating the Bootstrap framework to the application without using extensions, implementing SQLAlchemy using the declarative and standard approaches, and optimizing the Jinja2 templates using macros, indicate that the Flask framework is a lightweight but powerful solution to building web applications.
After learning about creating full-blown web applications with Flask, let us discuss and highlight, in the next chapter, the components and procedures for building API-based applications using the Flask 3.x framework.