litestar-data-services

What problem does it solve?

This Skill solves the common pain point of inconsistent data service layer implementation in Litestar applications, which leads to bloated route handlers, duplicated query logic, mixed persistence stacks, and inconsistent API response shapes for CRUD operations, filters, and pagination.

Core Features & Use Cases

• Multi-stack service patterns: Provides opinionated, canonical patterns for building service layers with advanced-alchemy, sqlspec, or raw SQLAlchemy, ensuring consistency across your project's data access layer.
• Built-in filter and pagination guidance: Includes native patterns for filter dependencies and pagination envelopes that align with Litestar's conventions, eliminating the need to hand-roll query parameters or response shapes.
• Guardrails and validation: Enforces best practices like keeping controllers thin, avoiding mixed persistence stacks, and ensuring explicit DTO conversion, with a built-in validation checkpoint to catch common mistakes early.
• Use Case: For example, when building a user management API, use this Skill to implement a consistent UserService with built-in CRUD operations, filtered list endpoints with pagination, and proper DTO conversion without writing repetitive query logic.

Quick Start

Use the litestar-data-services skill to implement a typed CRUD service layer with filter and pagination support for your Litestar app's user domain.