SiriKit Payment Intent Handler

IntentHandler.swift

import Intents

extension IntentHandler: INSendPaymentIntentHandling {
    func handle(
      intent: INSendPaymentIntent, 
      completion: @escaping (INSendPaymentIntentResponse) -> Void
    ) {
        // Perform the expected action. Report back to Siri
        // This is the place to call your service, update database, or whatever you need to do.
        completion(INSendPaymentIntentResponse.init(code: .success, userActivity: nil))
        return
    }
    
    func resolveCurrencyAmount(
      for intent: INSendPaymentIntent, 
      with completion: @escaping (INSendPaymentCurrencyAmountResolutionResult) -> Void
    ) {
        // Validate & clarify currency parameter
        let amount = intent.currencyAmount?.amount ?? 0
        completion(
          INSendPaymentCurrencyAmountResolutionResult.success(with: INCurrencyAmount(amount: amount, currencyCode: "USD" ))
        )
    }
    
    func resolveNote(
      for intent: INSendPaymentIntent, 
      with completion: @escaping (INStringResolutionResult) -> Void
    ) {
        // Validate & clarify note parameter
        guard let note = intent.note else {
            completion(INStringResolutionResult.needsValue())
            return
        }
        completion(INStringResolutionResult.success(with: note))
    }
    
    func resolvePayee(
      for intent: INSendPaymentIntent, 
      with completion: @escaping (INSendPaymentPayeeResolutionResult) -> Void
    ) {
        // Validate & clarify payee parameter
        guard let payee = intent.payee else {
            // Request value when no payee was declared
            completion(INSendPaymentPayeeResolutionResult.needsValue())
            return
        }
        completion(INSendPaymentPayeeResolutionResult.success(with: payee))
        return
    }
    
    func confirm(
      intent: INSendPaymentIntent, 
      completion: @escaping (INSendPaymentIntentResponse) -> Void
    ) {
        // Tell Siri how it went. Validate with user the information is correct before sending
        let response = INSendPaymentIntentResponse(code: .ready, userActivity: nil)
        response.paymentRecord = INPaymentRecord(
            payee: intent.payee, 
            payer: nil, 
            currencyAmount: intent.currencyAmount, 
            paymentMethod: nil, 
            note: intent.note, 
            status: .pending
        )
        completion(response)
    }
}

extension IntentHandler: INRequestPaymentIntentHandling {
    func handle(
      intent: INRequestPaymentIntent, 
      completion: @escaping (INRequestPaymentIntentResponse) -> Void
    ) {
        completion(INRequestPaymentIntentResponse.init(code: .success, userActivity: nil))
        return
    }
    
    func resolvePayer(
      for intent: INRequestPaymentIntent, 
      with completion: @escaping (INRequestPaymentPayerResolutionResult) -> Void
    ) {
        guard let payer = intent.payer else {
            completion(INRequestPaymentPayerResolutionResult.needsValue())
            return
        }
        completion(INRequestPaymentPayerResolutionResult.success(with: payer))
    }
    
    func resolveCurrencyAmount(
      for intent: INRequestPaymentIntent, 
      with completion: @escaping (INRequestPaymentCurrencyAmountResolutionResult) -> Void
    ) {
        let amount = intent.currencyAmount?.amount ?? 0
        completion(
          INRequestPaymentCurrencyAmountResolutionResult.success(with: INCurrencyAmount(amount: amount, currencyCode: "USD"))
        )
    }
    
    func resolveNote(
      for intent: INRequestPaymentIntent, 
      with completion: @escaping (INStringResolutionResult) -> Void
    ) {
        guard let note = intent.note else {
            completion(INStringResolutionResult.needsValue())
            return
        }
        completion(INStringResolutionResult.success(with: note))
    }
  
  	func confirm(
      intent: INRequestPaymentIntent, 
      completion: @escaping (INRequestPaymentIntentResponse) -> Void
    ) {
        let response = INRequestPaymentIntentResponse(code: .ready, userActivity: nil)
        response.paymentRecord = INPaymentRecord(
            payee: nil, 
            payer: intent.payer, 
            currencyAmount: intent.currencyAmount, 
            paymentMethod: nil, 
            note: intent.note, 
            status: .pending
        )
        completion(response)
    }
}