nestjs-class-validator-error-handler

GraphQL Error handler for NestJS models using class-validator

Note: this package is opinated to work along mongoose for now. With a few lines you can remove it as a dependency or it could be decoupled into two different decorators for those who do not use mongo/mongoose.

Usage

Your model must

• Extend it from the Model class
• Enable class-validator by using the decorator @ValidateSchema() on the class
• Export the schema using YourModel.schema property

Example User.model.ts

import * as DB from '@nestjs/mongoose'
import * as GQL from '@nestjs/graphql'
import * as mongoose from 'mongoose'
import * as V from 'class-validator'
import { ValidateSchema, Model } from 'nestjs-class-validator-error-handler'

@GQL.ObjectType()
@DB.Schema({
  timestamps: true,
})
@ValidateSchema()
export class UserModel extends Model {
  @GQL.Field(() => GQL.ID)
  _id: mongoose.Types.ObjectId

  @GQL.Field(() => String, { nullable: false })
  @DB.Prop({
    required: true,
  })
  @V.Contains('Hello')
  username: string
}

export type UserModelDocument = UserModel & mongoose.Document
export const UserModelSchema = UserModel.schema

Licence

MIT

Author

Gaston Morixe