Corrected `includeDatasetResponses` to accept string parameters

code/backend/beacon/beacon.py

@@ -61,11 +61,12 @@ class Beacon(object):
                 alleleRequest=query
             )
 
-            if truthy(query.get('includeDatasetResponses', False)):
+            should_include_dataset_responses = query.get('includeDatasetResponses', "")
+            if len(should_include_dataset_responses) and should_include_dataset_responses != "NONE":
                 response['datasetAlleleResponses'] = []
                 for r in responses:
-                    response['datasetAlleleResponses'].append(create_beacon_dataset_allele_response_ok(datasetId=r[0],
-                                                                                                       exists=r[1]))
+                    allele_response = create_beacon_dataset_allele_response_ok(datasetId=r[0], exists=bool(r[1]))
+                    response['datasetAlleleResponses'].append(allele_response)
         except (NotImplementedError, Exception) as error:
             response = create_beacon_allele_response_error(
                 beaconId=beacon_id,

code/backend/beacon/data_types.py

@@ -96,11 +96,10 @@ def validate_input(**kwargs):
          r'^[AaCcTtGgDd]*$',
          True)
 
-    whitelist = [True, False, 'true', 'false', 'True', 'False']
-    if 'includeDatasetResponses' in kwargs and kwargs['includeDatasetResponses'] not in whitelist:
-        raise APIArgumentError("Invalid {0} ({1}) - {2}".format("includeDatasetResponses",
-                                                                kwargs['includeDatasetResponses'],
-                                                                'a boolean was expected'))
+    wrap('includeDatasetResponses',
+         'accepts only "ALL", "HIT", "MISS", "NONE" and empty string',
+         r'^([Hh][Ii][Tt]$)|([Aa][Ll]{2}$)|([Mm][Ii][Ss]{2}$)|([Nn][Oo][Nn][Ee]$)|($)',
+         True)
 
     return True