Ember model relationship not matching API - ember.js

Question

I have two models who look like this:
// models/database.js
export default DS.Model.extend({
title: DS.attr(),
/*...*/
documents: DS.hasMany('document')
});
// models/document.js
export default DS.model.extend({
name: DS.attr(),
/*...*/
database: DS.belongsTo('database')
});
Is also have some routes
Router.map(function() {
this.route('databases', function() {
this.route('database', { path: ":database_id" }, function() {
this.route('documents');
});
});
});
When I call /database/[ID]/documents if got nothing.
I think the problem is I'm working with an JSON HAL API and when I ask for databases on API I receive this kind of response.
{
"_embedded": {
"databases": [
{
"_links": {
"self": {
"href": "<API_URL>/databases/7ec39267b544424c/",
"reference": "7ec39267b544424c",
"title": "00000006"
}
},
"database": {
"name": "00000006",
"reference": "7ec39267b544424c",
"title": "****"
}
},
{
"_links": {
"self": {
"href": "<API_URL>/databases/aace19af004144a4/",
"reference": "aace19af004144a4",
"title": "00000007"
}
},
"database": {
"name": "00000007",
"reference": "aace19af004144a4",
"title": "******"
}
}
}]
}
As you can see there no documents attributes on JSON returned.
If I want a database's documents I've got to call [API_URL]/databases/[ID]/domains/[ID]/documents
There's still a way to link documents to a database by specifying that the documents are recoverable at this URL (/databases/[ID]/domains/[ID]/Documents)?

Answer 1

I found the solution.
I've override extractRelationships method in hal serializer like this:
extractRelationships(modelClass, resourceHash, included) {
resourceHash._links["documents"] = {
"href" : "/databases/" + resourceHash.id + "/domains/" + (resourceHash.name || resourceHash[modelClass.modelName].name) + "/documents/"
};
return this._super(modelClass, resourceHash, included);
}
I just add a link to documents for each databases returned by the API.
I've modified my route for documents like this
export default Ember.Route.extend(AuthenticatedRouteMixin, {
model() {
return this.modelFor('databases.database').get('documents');
}
});
And now it works perfectly.

Answer 2

I think what you're looking for is a HAL API to JSON API converter. To avoid doing this yourself manually I'd recommend the http://github.com/201-created/ember-data-hal-9000 Ember plugin, which I've used myself to get Ember Data to play nice with Spring Boot.
If you wanted to see a simple example here's my client-side and server-side demo app.
Additionally, if you were curious what Ember, and JSON API don't use HAL you can read here JSON API - FAQ on HAL.