litestar-dto

What problem does it solve?

Explicitly shaping inbound and outbound API payloads to protect internal models and enforce contract stability.

Core Features & Use Cases

• Layered DTO configuration with dto and return_dto across handler, controller, router, or app
• DTOConfig policies for exclude, rename_fields, max_nested_depth, forbid_unknown_fields, and partial updates
• DTOData for safe create/update with controlled mutation and nested field paths
• Custom AbstractDTO support when factories can't cover requirements
• Clear patterns for ensuring consistent DTO-driven transformations across the stack

Quick Start

Define a ReadDTO/WriteDTO pair for your model and attach them to your Litestar endpoint to start enforcing a stable payload contract.