added getBloodGlucoseSamples method and types mmol/L and mg/dL

RCTAppleHealthKit/RCTAppleHealthKit+Methods_Results.m

@@ -4,7 +4,39 @@
 
 @implementation RCTAppleHealthKit (Methods_Results)
 
+- (void)results_getBloodGlucoseSamples:(NSDictionary *)input callback:(RCTResponseSenderBlock)callback
+{
+    HKQuantityType *bloodGlucoseType = [HKQuantityType quantityTypeForIdentifier:HKQuantityTypeIdentifierBloodGlucose];
 
+    HKUnit *mmoLPerL = [[HKUnit moleUnitWithMetricPrefix:HKMetricPrefixMilli molarMass:HKUnitMolarMassBloodGlucose] unitDividedByUnit:[HKUnit literUnit]]
+
+    HKUnit *unit = [RCTAppleHealthKit hkUnitFromOptions:input key:@"unit" withDefault:mmoLPerL];
+    NSUInteger limit = [RCTAppleHealthKit uintFromOptions:input key:@"limit" withDefault:HKObjectQueryNoLimit];
+    BOOL ascending = [RCTAppleHealthKit boolFromOptions:input key:@"ascending" withDefault:false];
+    NSDate *startDate = [RCTAppleHealthKit dateFromOptions:input key:@"startDate" withDefault:nil];
+    NSDate *endDate = [RCTAppleHealthKit dateFromOptions:input key:@"endDate" withDefault:[NSDate date]];
+    if(startDate == nil){
+        callback(@[RCTMakeError(@"startDate is required in options", nil, nil)]);
+        return;
+    }
+    NSPredicate * predicate = [RCTAppleHealthKit predicateForSamplesBetweenDates:startDate endDate:endDate];
+
+    [self fetchQuantitySamplesOfType:bloodGlucoseType
+                                unit:unit
+                           predicate:predicate
+                           ascending:ascending
+                               limit:limit
+                          completion:^(NSArray *results, NSError *error) {
+        if(results){
+            callback(@[[NSNull null], results]);
+            return;
+        } else {
+            NSLog(@"error getting blood glucose samples: %@", error);
+            callback(@[RCTMakeError(@"error getting blood glucose samples", nil, nil)]);
+            return;
+        }
+    }];
+}
 
 
 @end

RCTAppleHealthKit/RCTAppleHealthKit+Utils.m

@@ -240,6 +240,12 @@
     if([unitString isEqualToString:@"mmhg"]){
         theUnit = [HKUnit millimeterOfMercuryUnit];
     }
+    if([unitString isEqualToString:@"mmolPerL"]){
+        theUnit = [[HKUnit moleUnitWithMetricPrefix:HKMetricPrefixMilli molarMass:HKUnitMolarMassBloodGlucose] unitDividedByUnit:[HKUnit literUnit]];
+    }
+    if([unitString isEqualToString:@"mgPerL"]){
+        theUnit = [HKUnit unitFromString:@"mg/dL"];
+    }
 
     if(theUnit == nil){
         theUnit = defaultValue;

RCTAppleHealthKit/RCTAppleHealthKit.m

@@ -15,6 +15,7 @@
 #import "RCTAppleHealthKit+Methods_Fitness.h"
 #import "RCTAppleHealthKit+Methods_Characteristic.h"
 #import "RCTAppleHealthKit+Methods_Vitals.h"
+#import "RCTAppleHealthKit+Methods_Results.h"
 
 @implementation RCTAppleHealthKit
 
@@ -155,6 +156,11 @@ RCT_EXPORT_METHOD(getRespiratoryRateSamples:(NSDictionary *)input callback:(RCTR
     [self vitals_getRespiratoryRateSamples:input callback:callback];
 }
 
+RCT_EXPORT_METHOD(getBloodGlucoseSamples:(NSDictionary *)input callback:(RCTResponseSenderBlock)callback)
+{
+    [self results_getBloodGlucoseSamples:input callback:callback];
+}
+
 
 RCT_EXPORT_METHOD(getInfo:(NSDictionary *)input callback:(RCTResponseSenderBlock)callback)
 {

constants.js

@@ -47,6 +47,8 @@ const UNITS = {
 	fahrenheit: 'fahrenheit',
 	celsius: 'celsius',
 	mmhg: 'mmhg',
+	mmolPerL: 'mmolPerL',
+	mgPerL: 'mgPerL',
 };