node-models

SYNOPSIS

Models backed by validimir. Define, validate and sanitize without any DSLs or schema languages.

BUILD

USAGE

const Models = require('node-models')
 
let v = Models.create({
  'beep.boop': Models.validators().string('boop must be a string').len(5),
  'foo.bar.bazz.quxx': Models.validators().number()
})
 
let data = { beep: { boop: 'k' }, foo: { bar: { bazz: { quxx: 100 } } }
 
let result = v(data)
 
if (result.length === 0) console.log('No errors!')
else console.log(result.errors)

Function Models.create(Object obj [, Object model, ...])

create(object) accepts an object with object paths for keys and validation functions for values, returns a validator function. It can also be extended with other models by passing them in as additional arguments.

let v = Models.create({
  'beep.boop': Models.validators().string('boop must be a stirng').len(3)
})

Function Models.validators([Boolean optional]])

Returns a chainable set of validator functions via validimir. Validators cover a good number of use cases, here are a few examples...

// an item is in an array
Models.validators().of(['foo', 'bar'])('foo')
 
// a custom pattern match
Models.validators().match(/\d/, 'A password must contain at least one number')
 
// a range
Models.validators().len({ gt: 3, lte: 10 })('a')

Object validate(Object object[, Boolean sanitize])

The validator function only cares about property paths that are specified in the model, that way you can be liberal with data and strict about specific details. You can also pass a bool as the second parameter which will remove any properties that have not been specified in the model.

let data = { beep: { boop: 'bla' }, bla: 100 }
let result = v(data)
 
if (result.length === 0) console.log('No errors!')
else console.log(result.errors)

When there are errors, they will be detailed, for example...

let v = Models.create({
  'beep.boop': Models.validators().string('boop must be a stirng').len(5)
})
 
let data = { beep: { boop: 'k' }, bla: 100 }
 
console.log(v(data))

{ "beep.boop":
   [ { "value": "k",
       "operator": "len",
       "expected": 5,
       "actual": 1,
       "message": "Expected 'k' to have length 5" } ],
  "length": 1 }

LICENSE

https://voltra.co