perf: Optimize asset connection speed with es command storage

apps/terminal/serializers/session.py

@@ -58,6 +58,15 @@ class SessionSerializer(BulkOrgResourceModelSerializer):
             'terminal_display': {'label': _('Terminal display')},
         }
 
+    def get_fields(self):
+        fields = super().get_fields()
+        self.pop_fields_if_need(fields)
+        return fields
+
+    def pop_fields_if_need(self, fields):
+        if self.context['request'].method != "GET":
+            fields.pop("command_amount")
+
     def validate_asset(self, value):
         max_length = self.Meta.model.asset.field.max_length
         value = pretty_string(value, max_length=max_length)