betodealmeida commented on a change in pull request #14832:
URL: https://github.com/apache/superset/pull/14832#discussion_r639427479



##########
File path: superset/databases/commands/validate.py
##########
@@ -90,7 +92,7 @@ def run(self) -> None:
 
         # try to connect
         sqlalchemy_uri = engine_spec.build_sqlalchemy_uri(
-            self._properties["parameters"],  # type: ignore
+            self._properties.get("parameters", None),  # type: ignore

Review comment:
       We do validate the payload here: 
https://github.com/apache/superset/blob/master/superset/databases/api.py#L1006
   
   But we don't validate the parameters' schema, since they are dynamic (though 
we could, it's just more complicated). And even if we did, adding a guard here 
is great!

##########
File path: superset/db_engine_specs/base.py
##########
@@ -1427,7 +1427,7 @@ def validate_parameters(
             )
             return errors
 
-        port = parameters["port"]
+        port = parameters.get("port", None)

Review comment:
       Awesome!




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