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Lightweight & Fast
Built on Express with minimal dependencies. Focus on essentials without the bloat.
YasuiJSShip production-ready REST APIs in minutes
A lightweight framework, but with everything you need.
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Complete Error Handling
Middlewares, services, controllers - everything can throw without try/catch. Automatic error handling everywhere.
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Automatic Type-Casting
Query params automatically converted to proper types. Even in middlewares.
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Flexible DI System
Constructor and method-level injection with configurable scopes for better control.
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Simple Middlewares
Apply at global, controller, or route level. Use the same decorators as controllers.
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Rich Swagger Generation
Flexible decorators for enums, arrays, classes, OpenAPI schemas. Generated from your existing code.