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custom-validator

3 articles · Page 1 of 1
Xiaolin Talks Programming
Xiaolin Talks Programming
May 31, 2026 · Backend Development

Spring Boot Parameter Validation: From Basic Annotations to Custom Validators & Group Validation

This guide covers Spring Boot parameter validation using Bean Validation annotations, demonstrating basic setup with @Valid/@Validated, custom validator creation for phone numbers, group validation for create/update scenarios, global exception handling for MethodArgumentNotValidException and ConstraintViolationException, and best practices like DTO separation and nested object validation.

Backend DevelopmentHibernate ValidatorSpring Boot
0 likes · 12 min read
Spring Boot Parameter Validation: From Basic Annotations to Custom Validators & Group Validation
AI Algorithm Path
AI Algorithm Path
Mar 24, 2025 · Fundamentals

Unlock Efficient Data Validation in Python with Pydantic

This article walks through installing Pydantic, creating basic and nested models, handling validation errors, using default values, defining custom validators, loading settings from environment variables, and serializing models to dictionaries and JSON, demonstrating how Pydantic streamlines data validation in Python.

Data Validationcustom-validatorenvironment variables
0 likes · 7 min read
Unlock Efficient Data Validation in Python with Pydantic