pass client to filter extension object instead of creating custom class

Author: StijnCaerts

stac_fastapi/elasticsearch/stac_fastapi/elasticsearch/app.py

@@ -1,6 +1,4 @@
 """FastAPI application."""
-import attr
-
 from stac_fastapi.api.app import StacApi
 from stac_fastapi.api.models import create_get_request_model, create_post_request_model
 from stac_fastapi.elasticsearch.config import ElasticsearchSettings
@@ -26,14 +24,6 @@
 settings = ElasticsearchSettings()
 session = Session.create_from_settings(settings)
 
-
-@attr.s
-class FixedFilterExtension(FilterExtension):
-    """FilterExtension class implementation with EsAsyncBaseFiltersClient."""
-
-    client = attr.ib(factory=EsAsyncBaseFiltersClient)
-
-
 extensions = [
     TransactionExtension(client=TransactionsClient(session=session), settings=settings),
     BulkTransactionExtension(client=BulkTransactionsClient(session=session)),
@@ -42,7 +32,7 @@ class FixedFilterExtension(FilterExtension):
     SortExtension(),
     TokenPaginationExtension(),
     ContextExtension(),
-    FixedFilterExtension(),
+    FilterExtension(client=EsAsyncBaseFiltersClient()),
 ]
 
 post_request_model = create_post_request_model(extensions)