In this module, learners use Django REST framework (DRF) to build APIs more efficiently. They examine why DRF is useful compared with plain Django, install and configure DRF, and create API endpoints using function-based views, class-based views, and viewsets. The module also introduces serializers, model serializers, relationship serializers, validation, deserialization, and renderers for JSON and XML output. Learners practice converting an existing Django API project into DRF and debugging API behavior with development tools. By the end of the module, learners will be able to build a basic API in DRF, configure routing and views, serialize and validate model data, and return structured API responses in multiple formats.

In this module, learners extend and secure their APIs by implementing features that improve usability, performance, and access control. They work with filtering, searching, ordering, and pagination to help clients retrieve data efficiently, and they apply validation and sanitization to protect API inputs. The module also introduces caching to reduce infrastructure load, token-based authentication to verify users, authorization mechanisms to control access by role or privilege level, and throttling to limit request frequency. Learners also explore user registration and account management workflows using authentication libraries. By the end of the module, learners will be able to enhance a Django REST framework API with data access features, validation, security controls, and performance optimizations.

In this module, learners consolidate the knowledge and skills developed throughout the course by completing a final API project. They review the assessment requirements, examine project structure and route design, and build an API that brings together core concepts such as endpoint creation, data handling, and API organization. Learners then reflect on their development process, the challenges they encountered, and the skills they want to continue building. By the end of the module, learners will have demonstrated their ability to create a functional API project and evaluate their own progress in API development.