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Learn how to implement Pydantic schemas for robust API request and response validation in FastAPI through this 24-minute tutorial. Discover the process of creating a dedicated schemas file containing request and response models, implementing field validations such as minimum and maximum length constraints, and updating GET endpoints with proper response models. Explore the creation of POST endpoints for adding new posts while understanding how Pydantic schemas serve as your API contract, defining both input and output data structures. Master how FastAPI leverages these schemas for automatic validation, serialization, and documentation generation, ensuring your API maintains consistent data integrity and clear interface specifications.
