open-vault/ui/app/serializers/config.js

import { assign } from '@ember/polyfills';
import { decamelize } from '@ember/string';
import DS from 'ember-data';

export default DS.RESTSerializer.extend({
  keyForAttribute: function(attr) {
    return decamelize(attr);
  },

  normalizeAll(payload) {
    if (payload.data) {
      const data = assign({}, payload, payload.data);
      return [data];
    }
    return [payload];
  },

  normalizeResponse(store, primaryModelClass, payload, id, requestType) {
    const records = this.normalizeAll(payload);
    const { modelName } = primaryModelClass;
    let transformedPayload = { [modelName]: records };
    // just return the single object because ember is picky
    if (requestType === 'queryRecord') {
      transformedPayload = { [modelName]: records[0] };
    }

    return this._super(store, primaryModelClass, transformedPayload, id, requestType);
  },
});