Exploring Data Transformation in Phoenix 1.7

The blog post discusses significant changes in Phoenix 1.7 with the introduction of HEEx, which modifies how data is transformed into HTTP responses. While the changes are primarily surface-level, the underlying mechanisms remain largely unchanged, ensuring backward compatibility. It outlines the new conventions for selecting response formats, the handling of view modules, assigning data, and how view functions are defined. Notably, the handling of formats and template engines is explored, highlighting how they can be customized. The removal of Phoenix.View in favor of direct function calls with the new convention is also explained, emphasizing its limited usefulness in the latest version. This overview aims to clarify the mechanics behind data-to-response transformation in Phoenix, particularly for those adapting to these changes.