Can I run multiple models using Ember data?

Question

So, let's say you have a User model that is configured for a fairly standard API. At the front end, you have an Ember project that also has this user model. A typical create call would look something like this:

store.createRecord('user', {email: ' [e-mail] '}).save(); 

This will send a POST request to something like /api/users . However, quite extensive API support is the creation of several models at the same time. For example, instead of calling POST, just sending one object to user: {email: ' [e-mail] '} , it sends an array of objects such as users: [{email: ' [e-mail] '}, {email: ' [e-mail] '}, ...] .

As I have seen that this is handled in ember, it is easy to make several create calls at runtime. However, this is terribly inefficient, and I wonder if Ember supports saving multiple models at the same time? How do you achieve this in Amber?

Answer 1

You cannot save an array of models in a single POST Ember Data request as you describe it, however there is a way.

You can save a parent model that hasMany 'user' with EmbeddedRecordsMixin , which will include either relationship identifiers or full records. Your serializer will look like this:

 import DS from 'ember-data'; export default DS.RESTSerializer.extend(DS.EmbeddedRecordsMixin, { attrs: { users: { embedded: 'always' }, } }); 

Depending on your use case, it might make sense to create a parent model just for this purpose, which hasMany 'user' . If you want to use an existing model and don’t always want to insert your custom posts, there is an answer here.

If you decide to save the models separately, you would like to do users.invoke('save') , which will cause POST for each model.

Answer 2

If you specifically ask about Ember Data, I don’t know how to do it (I don’t think that you can use any equivalent of save () for the collection / array). There may be alternative data libraries that may work (for example, you can check Orbit.JS - this is what I haven't done yet)

As I did this, it has an endpoint on my backend that receives a specific JSON payload and creates resources. You do this by calling a regular ajax call, see this example (from my project).

 let content = //get content that you want to post let accessToken = this.get('session.session.authenticated.token'); Ember.$.ajax({ data: JSON.stringify(content), dataType: 'json', method: 'POST', url: 'path/to/my/custom/end/point', headers: { 'Content-Type': 'application/json', 'Authorization': `Beader ${accessToken}` } }).then((result) => { // Code for success }, (jqXHR) => { // Code for error }).always(() => { // Code for always/finally }); 

As you can see, this is all user code, not the use of Ember Data storage or models. So far I have not found a better answer.

EDIT: After viewing the answer andorov. I forgot to say something. I am using Ember Data 2.0 (default is JSONAPI) and the EmbeddedRecordsMixin Property does not work with the JSON API