This segment details the standard conventions for read operations in a CRUD API, explaining the use of GET requests for retrieving data. It differentiates between retrieving all posts (`/posts`) and retrieving a single post by ID (`/posts/{id}`), highlighting the importance of using unique identifiers for database entries and illustrating how these operations are implemented using FastAPI decorators. The explanation clearly distinguishes between fetching multiple posts and a single post, emphasizing best practices for API design. This lesson explains CRUD (Create, Read, Update, Delete) operations in API design. Standard conventions include using plural nouns (e.g., `/posts`) for endpoints. Create uses POST, Read uses GET (with `/posts` for all, `/posts/{id}` for one), Update uses PUT or PATCH (with `/posts/{id}`), and Delete uses DELETE (with `/posts/{id}`). FastAPI decorators simplify implementation.