feat: use new Elasticsearch package

src/storage/elasticsearch/common.ts

@@ -13,14 +13,16 @@
  * You should have received a copy of the GNU Affero General Public License
  * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  */
-import {SCThingType} from '@openstapps/core';
+import {SCThings, SCThingType} from '@openstapps/core';
 import {SCThing} from '@openstapps/core';
 import {
   ESAggMatchAllFilter,
-  ESAggTypeFilter,
-  ESNestedAggregation,
+  ESAggTypeFilter, ESNestedAggregation,
   ESTermsFilter,
 } from '@openstapps/core-tools/lib/mappings/aggregation-definitions';
+// we only have the @types package because some things type definitions are still missing from the official
+// @elastic/elasticsearch package
+// tslint:disable-next-line:no-implicit-dependencies
 import {NameList} from 'elasticsearch';
 
 /**
@@ -71,6 +73,21 @@ export function isBucketAggregation(agg: BucketAggregation | number): agg is Buc
   return typeof agg !== 'number';
 }
 
+/**
+ * A response that contains info about whether the item exists plus the object itself
+ */
+export interface ItemExistsResponse {
+  /**
+   * Whether the item exists
+   */
+  exists: boolean;
+
+  /**
+   * The object if it exists
+   */
+  object?: ElasticsearchObject<SCThings>;
+}
+
 /**
  * An aggregation that contains more aggregations nested inside
  */
@@ -94,6 +111,14 @@ export function isNestedAggregation(agg: BucketAggregation | NestedAggregation):
   return typeof (agg as BucketAggregation).buckets === 'undefined';
 }
 
+/**
+ * An elasticsearch bucket aggregation
+ * @see https://www.elastic.co/guide/en/elasticsearch/reference/5.6/search-aggregations-bucket.html
+ */
+export interface AggregationSchema {
+  [aggregationName: string]: ESTermsFilter | ESNestedAggregation;
+}
+
 /**
  * A configuration for using the Dis Max Query
  *