Body - Fields — FastAPI Basics

Learn to add validation and metadata to Pydantic model fields using Field(). Master field-level constraints, descriptions, and advanced validation.

What you'll learn

• Import and use Field from pydantic for model attributes
• Add validation constraints to model fields (gt, max_length, etc.)
• Include metadata like titles and descriptions for better documentation
• Understand the relationship between Field, Query, Path, and Body

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