Step count Query | Apple Developer Forums

Step count Query

I am very new to objc and swift.
I am trying to access step count from HealthKit.
Can someone tell me whether my query is correct?
And can I call this query directly from my JS file or do I need to append it to an object in objc?

Code Block RCT_EXPORT_METHOD(updateStepsCount:(RCTPromiseResolveBlock)resolve
rejecter:(RCTPromiseRejectBlock)reject)

Code Block
RCT_EXPORT_METHOD(updateStepsCount:(RCTPromiseResolveBlock)resolve
rejecter:(RCTPromiseRejectBlock)reject)

Code Block @objc
  func updateStepsCount(_ statisticsCollection: HKStatisticsCollection, _ resolve: @escaping RCTPromiseResolveBlock,
                        rejecter reject: @escaping (RCTPromiseRejectBlock) -> Void) {
      
      let stepType = HKQuantityType.quantityType(forIdentifier: HKQuantityTypeIdentifier.stepCount)!
      
      let startDate = Calendar.current.date(byAdding: .day, value: -7, to: Date())
      
      let anchorDate = Date.mondayAt12AM()
      
      let daily = DateComponents(day: 1)
      
      let predicate = HKQuery.predicateForSamples(withStart: startDate, end: Date(), options: .strictStartDate)
      
      let query = HKStatisticsCollectionQuery(quantityType: stepType, quantitySamplePredicate: predicate, options: .cumulativeSum, anchorDate: anchorDate, intervalComponents: daily)
          healthStore.execute(query)
      
  }