Realm Sample

01-realm-1.js

class Car {
  static schema = {
    name: 'Car',
    properties: {
      make:  'string',
      model: 'string',
      miles: 'int'
    }
  }
}

class Person {
  static schema = {
    name: 'Person',
    properties: {
      name:    {type: 'string'},
      cars:    {type: 'list', objectType: 'Car'},
      picture: {type: 'data', optional: true}
    }
  }
}

const realm = new Realm({ schema: [Car, Person] })

realm.write(() => {
  let myCar = realm.create('Car', {
    make:  'Honda',
    model: 'Civic',
    miles: 1000
  })
  
  myCar.miles += 20
})

const cars = realm.objects('Car').filtered('miles > 1000')

cars.length // => 1

realm.write(() => {
  let myCar = realm.create('Car', {
    make:  'Ford',
    model: 'Focus',
    miles: 2000
  })
})

// Query results are updated in realtime
cars.length // => 2