Validation

It is best practice to validate the correctness of any data sent into a web application. To automatically validate incoming requests, Nodeeweb provides validation pipe available

Table of Contents

• Structure
• Register
• Usage

Structure

Pipe

pipes are middleware creators

interface Pipe<A> {
  pipeCreator(args: A): MiddleWare;
}

Validation Pipe

validations are one types of pipe

export type ValidateArgs = {
  reqPath: 'body' | 'query' | 'params';
  dto: ClassConstructor<unknown>;
};

export interface ValidatePipe extends Pipe<ValidateArgs | ValidateArgs[]> {}

Register

by default core register CoreValidationPipe but you can customize your validation pipe like below:

registerValidationPipe({
    from: 'CustomService',
    validation: new CustomValidationPipe(),
  })

Usage

validation use in controller register when schema pass validation argument