diff --git a/RCTAppleHealthKit/RCTAppleHealthKit+TypesAndPermissions.h b/RCTAppleHealthKit/RCTAppleHealthKit+TypesAndPermissions.h
index 64041e765989b5508cc464f180f2df314b7ab12d..73438fe45b41c11bc4fdd3e28277b9f7d3b0d96c 100644
--- a/RCTAppleHealthKit/RCTAppleHealthKit+TypesAndPermissions.h
+++ b/RCTAppleHealthKit/RCTAppleHealthKit+TypesAndPermissions.h
@@ -10,12 +10,6 @@
 
 @interface RCTAppleHealthKit (TypesAndPermissions)
 
-- (NSSet *)dataTypesToWrite;
-- (NSSet *)dataTypesToRead;
-
-- (NSDictionary *)readPermsDict;
-- (NSDictionary *)writePermsDict;
-
 - (NSSet *)getReadPermsFromOptions:(NSArray *)options;
 - (NSSet *)getWritePermsFromOptions:(NSArray *)options;
 
diff --git a/RCTAppleHealthKit/RCTAppleHealthKit+TypesAndPermissions.m b/RCTAppleHealthKit/RCTAppleHealthKit+TypesAndPermissions.m
index c0729f7372dad0b2fe96a451a497ca80ab22da3a..c9e8aed55b7423ae4dfc2843f07ca9d2221cef3e 100644
--- a/RCTAppleHealthKit/RCTAppleHealthKit+TypesAndPermissions.m
+++ b/RCTAppleHealthKit/RCTAppleHealthKit+TypesAndPermissions.m
@@ -12,35 +12,6 @@
 
 #pragma mark - HealthKit Permissions
 
-
-// Returns the types of data that Fit wishes to write to HealthKit.
-- (NSSet *)dataTypesToWrite {
-    HKQuantityType *dietaryCalorieEnergyType = [HKObjectType quantityTypeForIdentifier:HKQuantityTypeIdentifierDietaryEnergyConsumed];
-    HKQuantityType *activeEnergyBurnType = [HKObjectType quantityTypeForIdentifier:HKQuantityTypeIdentifierActiveEnergyBurned];
-    HKQuantityType *heightType = [HKObjectType quantityTypeForIdentifier:HKQuantityTypeIdentifierHeight];
-    HKQuantityType *weightType = [HKObjectType quantityTypeForIdentifier:HKQuantityTypeIdentifierBodyMass];
-    
-    return [NSSet setWithObjects:dietaryCalorieEnergyType, activeEnergyBurnType, heightType, weightType, nil];
-}
-
-
-
-// Returns the types of data that Fit wishes to read from HealthKit.
-- (NSSet *)dataTypesToRead {
-    HKQuantityType *dietaryCalorieEnergyType = [HKObjectType quantityTypeForIdentifier:HKQuantityTypeIdentifierDietaryEnergyConsumed];
-    HKQuantityType *activeEnergyBurnType = [HKObjectType quantityTypeForIdentifier:HKQuantityTypeIdentifierActiveEnergyBurned];
-    HKQuantityType *heightType = [HKObjectType quantityTypeForIdentifier:HKQuantityTypeIdentifierHeight];
-    HKQuantityType *weightType = [HKObjectType quantityTypeForIdentifier:HKQuantityTypeIdentifierBodyMass];
-    
-    HKQuantityType *stepCountType = [HKObjectType quantityTypeForIdentifier:HKQuantityTypeIdentifierStepCount];
-    
-    HKCharacteristicType *birthdayType = [HKObjectType characteristicTypeForIdentifier:HKCharacteristicTypeIdentifierDateOfBirth];
-    HKCharacteristicType *biologicalSexType = [HKObjectType characteristicTypeForIdentifier:HKCharacteristicTypeIdentifierBiologicalSex];
-    
-    return [NSSet setWithObjects:dietaryCalorieEnergyType, activeEnergyBurnType, heightType, weightType, stepCountType, birthdayType, biologicalSexType, nil];
-}
-
-
 - (NSDictionary *)readPermsDict {
     NSDictionary *readPerms = @{
         @"DietaryEnergy" : [HKObjectType quantityTypeForIdentifier:HKQuantityTypeIdentifierDietaryEnergyConsumed],
diff --git a/RCTAppleHealthKit/RCTAppleHealthKit.m b/RCTAppleHealthKit/RCTAppleHealthKit.m
index 31f8dd226d80541650e32af545b10f62c43dd611..0638690b2ddac71bbae60a342db3a715744df978 100644
--- a/RCTAppleHealthKit/RCTAppleHealthKit.m
+++ b/RCTAppleHealthKit/RCTAppleHealthKit.m
@@ -70,10 +70,9 @@ RCT_EXPORT_METHOD(getInfo:(NSDictionary *)input callback:(RCTResponseSenderBlock
     self.healthStore = [[HKHealthStore alloc] init];
     
     if ([HKHealthStore isHealthDataAvailable]) {
-        
-        NSSet *writeDataTypes = [self dataTypesToWrite];
-        NSSet *readDataTypes = [self dataTypesToRead];
-        
+        NSSet *writeDataTypes;
+        NSSet *readDataTypes;
+
         // get permissions from input object provided by JS options argument
         NSDictionary* permissions =[input objectForKey:@"permissions"];
         if(permissions != nil){
@@ -89,13 +88,22 @@ RCT_EXPORT_METHOD(getInfo:(NSDictionary *)input callback:(RCTResponseSenderBlock
             if(writePerms != nil) {
                 writeDataTypes = writePerms;
             }
+        } else {
+            callback(@[RCTMakeError(@"permissions must be provided in the initialization options", nil, nil)]);
+            return;
+        }
+
+        // make sure at least 1 read or write permission is provided
+        if(!writeDataTypes && !readDataTypes){
+            callback(@[RCTMakeError(@"at least 1 write or read permission must be set in options.permissions", nil, nil)]);
+            return;
         }
-        
-        
+
         [self.healthStore requestAuthorizationToShareTypes:writeDataTypes readTypes:readDataTypes completion:^(BOOL success, NSError *error) {
             if (!success) {
-                NSLog(@"You didn't allow HealthKit to access these read/write data types. In your app, try to handle this error gracefully when a user decides not to provide access. The error was: %@. If you're using a simulator, try it on a device.", error);
-                callback(@[RCTMakeError(@"You didn't allow HealthKit to access these read/write data types. In your app, try to handle this error gracefully when a user decides not to provide access. The error was: %@. If you're using a simulator, try it on a device.", nil, nil)]);
+                NSString *errMsg = [NSString stringWithFormat:@"Error with HealthKit authorization: %@", error];
+                NSLog(errMsg);
+                callback(@[RCTMakeError(errMsg, nil, nil)]);
                 return;
             } else {
                 dispatch_async(dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0), ^{
@@ -111,7 +119,13 @@ RCT_EXPORT_METHOD(getInfo:(NSDictionary *)input callback:(RCTResponseSenderBlock
 
 - (void)getModuleInfo:(NSDictionary *)input callback:(RCTResponseSenderBlock)callback
 {
-    callback(@[[NSNull null], @"ReactNative Apple HealthKit Native Module. Created By Greg Wilson."]);
+    NSDictionary *info = @{
+            @"name" : @"react-native-apple-healthkit",
+            @"description" : @"A React Native bridge module for interacting with Apple HealthKit data",
+            @"className" : @"RCTAppleHealthKit",
+            @"author": @"Greg Wilson",
+    };
+    callback(@[[NSNull null], info]);
 }