@relab/nestjs-validation

Purpose

@relab/nestjs-validation provides a reusable helpers for setting up robust, consistent request validation in your NestJS applications. It configures a global validation pipe with automatic transformation and a standardized error response format, making it easier to handle and debug validation errors across your project.

Features

• Global Validation Pipe: Automatically applies validation to all incoming requests.
• Automatic Transformation: Converts payloads to expected DTO types.
• Consistent Error Format: Returns validation errors in a structured, predictable format.
• Easy Integration: Simple, one-line setup for any NestJS app.

Installation

pnpm add @relab/nestjs-validation
# or
npm install @relab/nestjs-validation
# or
yarn add @relab/nestjs-validation

How to Use

import { configureValidation } from '@relab/nestjs-validation'

const app = /* create nestjs app */

configureValidation(app)

This will:

• Enable global validation for all incoming requests.
• Transform request payloads to match your DTOs.
• Return validation errors in the following format:

{
  "statusCode": 400,
  "message": "Validation failed",
  "details": [
    {
      "field": "propertyName",
      "errors": [
        "error message 1",
        "error message 2"
      ]
    }
    // ...more fields
  ]
}

Requirements

• NestJS v11.1.1 or higher

License

MIT