workoutbuilder.swift

if let calories = message["calories"] as? Int,
    let distance = message["distance"] as? Int,
    let start = message["start"] as? Date,
    let end = message["end"] as? Date
{
    let calorieQuantityType = HKQuantityType.quantityType(forIdentifier: .activeEnergyBurned)!
    let calorieQuantity = HKQuantity(unit: .kilocalorie(), doubleValue: Double(calories))
    let caloriesBurned = HKQuantitySample(type: calorieQuantityType, quantity: calorieQuantity, start: start, end: end)
    
    let distanceQuantityType = HKQuantityType.quantityType(forIdentifier: .distanceCycling)!
    let distanceQuantity = HKQuantity(unit: .meter(), doubleValue: Double(distance))
    let distanceCycled = HKQuantitySample(type: distanceQuantityType, quantity: distanceQuantity, start: start, end: end)
    
    self.workoutBuilder.add([caloriesBurned, distanceCycled]) { (_, _) in
        self.endWorkout(date: end)
    }
}

if let segment = message["segmentName"] as? String,
    let dateInterval = message["dateInterval"] as? DateInterval {
    let workoutEvent = HKWorkoutEvent(type: .segment, dateInterval: dateInterval,
                                      metadata: ["Segment Name" : segment])
    self.workoutBuilder.addWorkoutEvents([workoutEvent]) { (success, error) in
        print(success ? "Success saving segment" : error as Any)
    }
}

if let workoutName = message["workoutName"] as? String {
    let metadata = [HKMetadataKeyWorkoutBrandName: workoutName]
    self.workoutBuilder.addMetadata(metadata) { (success, error) in
        print(success ? "Success saving metadata" : error as Any)
    }
}