Class DS.JSONAPISerializer
Ember Data 2.0 Serializer:
In Ember Data a Serializer is used to serialize and deserialize records when they are transferred in and out of an external source. This process involves normalizing property names, transforming attribute values and serializing relationships.
JSONAPISerializer
supports the http://jsonapi.org/ spec and is the
serializer recommended by Ember Data.
This serializer normalizes a JSON API payload that looks like:
// models/player.js
import DS from "ember-data";
export default DS.Model.extend({
name: DS.attr(),
skill: DS.attr(),
gamesPlayed: DS.attr(),
club: DS.belongsTo('club')
});
// models/club.js
import DS from "ember-data";
export default DS.Model.extend({
name: DS.attr(),
location: DS.attr(),
players: DS.hasMany('player')
});
{
"data": [
{
"attributes": {
"name": "Benfica",
"location": "Portugal"
},
"id": "1",
"relationships": {
"players": {
"data": [
{
"id": "3",
"type": "players"
}
]
}
},
"type": "clubs"
}
],
"included": [
{
"attributes": {
"name": "Eusebio Silva Ferreira",
"skill": "Rocket shot",
"games-played": 431
},
"id": "3",
"relationships": {
"club": {
"data": {
"id": "1",
"type": "clubs"
}
}
},
"type": "players"
}
]
}
to the format that the Ember Data store expects.
attrs
Inherited from DS.JSONSerializer packages/ember-data/lib/serializers/json-serializer.js:101
The attrs
object can be used to declare a simple mapping between
property names on DS.Model
records and payload keys in the
serialized JSON object representing the record. An object with the
property key
can also be used to designate the attribute's key on
the response payload.
Example
import DS from 'ember-data';
export default DS.Model.extend({
firstName: DS.attr('string'),
lastName: DS.attr('string'),
occupation: DS.attr('string'),
admin: DS.attr('boolean')
});
import DS from 'ember-data';
export default DS.JSONSerializer.extend({
attrs: {
admin: 'is_admin',
occupation: { key: 'career' }
}
});
You can also remove attributes by setting the serialize
key to
false in your mapping object.
Example
import DS from 'ember-data';
export default DS.JSONSerializer.extend({
attrs: {
admin: {serialize: false},
occupation: { key: 'career' }
}
});
When serialized:
{
"firstName": "Harry",
"lastName": "Houdini",
"career": "magician"
}
Note that the admin
is now not included in the payload.
isNewSerializerAPI
Defined in packages/ember-data/lib/serializers/json-api-serializer.js:103
This is only to be used temporarily during the transition from the old serializer API to the new one.
JSONAPISerializer
only supports the new Serializer API.
primaryKey
Inherited from DS.JSONSerializer packages/ember-data/lib/serializers/json-serializer.js:77
The primaryKey is used when serializing and deserializing
data. Ember Data always uses the id
property to store the id of
the record. The external source may not always follow this
convention. In these cases it is useful to override the
primaryKey property to match the primaryKey of your external
store.
Example
import DS from 'ember-data';
export default DS.JSONSerializer.extend({
primaryKey: '_id'
});
store public
Inherited from DS.Serializer packages/ember-data/lib/system/serializer.js:52
The store
property is the application's store
that contains all records.
It's injected as a service.
It can be used to push records from a non flat data structure server
response.