@feathers-plus/validate-joi-mongodb

Companion utilities for using @feathers-plus/validate-joi with MongoDB.

Installation

npm install @feathers-plus/validate-joi-mongodb --save

yarn add @feathers-plus/validate-joi-mongodb

Included Utilities

• objectId validates ObjectIDs.
• objectIdsInQuery a hook that converts ObjectID strings to full ObjectIds.

objectId Joi Validator

A Joi validator for ObjectIds.

Here's an example validation file for an faqs service. You might put the following file next to the faqs.service.js file. Notice that it first defines an object called attrs. The attrs are used by the Joi.object(attrs) and are also separately made available in the module.exports. This format allows us to use the full schema to validate creates, and the attrs are used in the validateProvidedData hook in patch requests. This format allows for a lot of flexibility for validating in the hooks.

// src/services/faqs/faqs.model.js
const Joi = require('joi')
const { objectId } = require('@feathers-plus/validate-joi-mongodb')

const attrs = {
  _id: objectId(),
  question: Joi.string().disallow(null).required(),
  answer: Joi.string().disallow(null).required(),
  isPublic: Joi.boolean().default(false),
  createdBy: objectId().disallow(null).required()
}

module.exports = {
  attrs,
  schema: Joi.object(attrs)
}

See a full example further down this page.

objectIdsInQuery Hook

The objectIdsInQuery hook converts stringified ObjectIDs in a Feathers query object to their full ObjectID form. This is especially useful when you are using the feathers-mongodb service adapter, which does not automatically convert query params the way that feathers-mongoose does. Without this hook, a string version of an ObjectID will not match an ObjectID stored in the database. With this hook, the conversion to a full ObjectID will occur before the query is sent to the MongoDB server, allowing results to be found.

See the next section for an example that uses this hook.

Example

This example shows how to use both the objectId validator and the objectIdsInQuery hook.

const { authenticate } = require('../../hooks/')
const { iff, isProvider } = require('feathers-hooks-common')
const validate = require('@feathers-plus/validate-joi')
const { objectId, objectIdsInQuery } = require('@feathers-plus/validate-joi-mongodb')
const { attrs, schema } = require('./faqs.model')

module.exports = {
  before: {
    all: [
      // ... handle authentication first
      iff(
        isProvider('external'),
        authenticate('auth0')
      ),
      objectIdsInQuery(['_id', 'createdBy'])
    ],
    find: [],
    get: [],
    create: [
      validate.form(schema, { abortEarly: false })
    ],
    update: [
      validate.form(schema, { abortEarly: false })
    ],
    patch: [
      validate.validateProvidedData(attrs, { abortEarly: false })
    ],
    remove: []
  }
}

Tests

npm test to run tests.

License

MIT. See LICENSE.