trailpack-joi

Trailpack validation for Trails application using joi schema validator

Install

$ npm install --save trailpack-joi

Configure

// config/main.js
module.exports = {
  packs: [
    // ... other trailpacks
    require('trailpack-joi')
  ]
}

Now create a new directory schemas in /api

//api/schemas/AuthValidator.js
 
const Joi = require('joi');
 
module.exports = class AuthValidator {
 
  signup() {
 
    return Joi.object().keys({
      name   : Joi.string().min(1).max(20).regex(/^[a-zA-Z ]+$/)
       .error(new Error('Name can contains only letters')),
      username : Joi.string().min(5).max(50).regex(/^[a-zA-Z0-9]+$/).required()
       .error(new Error('Username should contain letters and numbers, also it should contains min 5 characters')),
      email   : Joi.string().email().min(5).max(50).required()
       .error(new Error('Invalid email')),
      password: Joi.string().trim().min(5).max(20).required()
       .error(new Error('Invalid password')),
      country_code: Joi.string().trim().min(1).max(4).required()
       .error(new Error('Invalid country code')),
      mobile: Joi.string().trim().min(4).max(12).required()
       .error(new Error('Invalid mobile')),
    })
  }
}
 

create index.js file for schemas

//api/schemas/index.js
'use strict'
 
exports.AuthValidator = require('./AuthValidator')
 

Then make sure to add schemas directory in api/index.js

//api/index.js
...
exports.schemas = require('./schemas')

And to configure validators:

// config/validators.js
'use strict'
 
module.exports = {
  AuthController: {
    signup: 'AuthValidator.signup'
  }
};

Then make sure to include the new file in config/index.js

//config/index.js
...
exports.validators = require('./validators')

Usage

Policies

Now you can apply some policies to control schema validation under config/policies.js

  AuthController: {
    "signup": ['JoiPolicy.validate'],
  }