nestjs-validation-and-pipes

What problem does it solve?

Ensuring data integrity and security in NestJS backends requires robust request/response validation, transformation, and sanitization using Pipes and DTOs. This can be intricate to set up and maintain, leading to vulnerabilities or inconsistent data. This Skill automates the implementation of a strong validation layer, protecting your backend.

Core Features & Use Cases

• Global Validation Setup: Configure global ValidationPipe to enforce strict payload shapes, strip unknown properties, and reject invalid data.
• DTO Design & Transformation: Create DTOs with class-validator and class-transformer for type-safe input, including implicit type conversion for query/param DTOs.
• Custom Pipe Implementation: Develop custom pipes for parsing IDs, coercing strings, or enforcing custom logic, keeping controllers clean and focused.

Quick Start

Add validation to these NestJS endpoints using DTOs, reject invalid fields, and implement a custom pipe to validate IDs.