go-validator/validator
Validator
Este proyecto es un framework de validación de datos para el lenguaje de programación Go que impone integridad aplicando restricciones declarativas a los campos de los structs. Utiliza reflexión para inspeccionar estructuras de datos en tiempo de ejecución, mapeando los requisitos a nivel de campo definidos en los tags de los structs a una lógica de validación específica.
La librería se distingue por su capacidad para manejar grafos de objetos complejos recorriendo recursivamente estructuras anidadas y slices. Soporta validación consciente del contexto, permitiendo a los desarrolladores cambiar entre diferentes conjuntos de reglas para la misma estructura de datos según el estado de la aplicación o requisitos específicos.
Más allá de las comprobaciones de campo estándar, el framework proporciona un sistema basado en registro para definir funciones de validación personalizadas. Esto permite la integración de lógica de negocio especializada para manejar tareas complejas de verificación de datos, como sanitizar payloads de peticiones API entrantes o imponer restricciones de unicidad en toda una aplicación.
Features
- Data Validation Frameworks - Provides a framework for verifying application data against predefined business logic requirements and complex field-level constraints.
- Go Validation Libraries - Enforces data integrity by applying declarative constraints and custom validation rules to struct fields using tags.
- Struct Tag Validators - Checks data fields against predefined constraints using tags to ensure that all values meet specific business logic requirements.
- Custom Field Validation - Registers custom functions to perform specialized checks on data fields that go beyond standard validation requirements.
- Contextual Validation Groups - Applies different sets of validation rules to the same data structure depending on the specific application state or user role requirements.
- Reflection-Based Field Matchers - Traverses object hierarchies dynamically to access and evaluate field values against defined validation rules without manual boilerplate.
- Data Sanitization Utilities - Validates incoming data payloads in web services to ensure that all fields conform to expected formats before processing.
- Context-Aware Validation - Supports multiple validation rule sets for the same data structure based on application state or context.
- Custom Validation Functions - Extends validation capabilities by defining user-provided functions that apply specialized data checks to fields.
- Function Registries - Maintains a central lookup table of validation functions that allows developers to register and invoke custom business rules.
- Struct Tags - Uses reflection to parse custom struct tags at runtime, mapping field constraints to specific validation logic.
- Recursive Struct Traversal - Walks through nested data structures and slices to apply validation rules to every element within a complex object graph.
- Field Constraints - Applies declarative rules to data structures to ensure that all values meet specific criteria such as length, range, or pattern matching.
- Pluggable Rule Sets - Configures multiple validation rule sets for the same data structure to apply different constraints based on application state.
- Custom Logic Validation - Extends standard data verification by registering specialized functions to handle complex business rules that go beyond basic checks.
