double positive :(

Author: Thomas Reggi

lib/core/sdam/topology_description.js

@@ -152,7 +152,7 @@ class TopologyDescription {
     serverDescriptions.set(address, serverDescription);
     const isReplicaSet = this.options.replicaSet || this.options.setName || this.options.rs_name;
     // _directConnection is used to pass in the authored directConnection and not get the default
-    const isDirectConnection = this.options._directConnection === false;
+    const isDirectConnection = this.options._directConnection === true;
     if (serverType === ServerType.Mongos && !isReplicaSet && !isDirectConnection) {
       return new TopologyDescription(
         TopologyType.Sharded,