How-to Guides

Concise, goal-oriented instructions for practical tasks. Real, working examples you can use immediately.

Looking for hands-on projects to get started? Check out Tutorials. Or want to understand the "why" behind things? Check out Explanation.

Core Patterns

Learn the fundamental patterns for building with Stario:

Reading & Updating Datastar Signals + Patching Elements - Read signal values, update them, patch HTML elements. The foundation of reactive UIs.
Form Validation with Datastar - Real-time and on-submit validation with error handling and retry logic.
Image Upload - Handle file uploads with automatic base64 encoding, FileSignal objects, and loading indicators.
Error Handlers & Custom Exceptions - Define custom exceptions, register handlers, return custom HTML for errors.

Set up a productive development environment and robust logging:

Logging with Logger Dependency - Use the logger dependency, log at different levels, add context, handle exceptions.
Building Custom Log Sinks - Send logs to files, databases, Datadog, Sentry, CloudWatch, or anywhere else.

Secure your application:

Authentication with Sessions - Cookie-based session management and user authentication.

Work with databases and structured data:

Database Dependencies - Set up async database connections with dependency injection.

Get your app ready for production:

Hot Reload Development - Fast development with automatic reloading.
Docker Images for Production - Build optimized, secure Docker images with multi-stage builds.