validate

func validate(
    vaultedPaymentMethodId: String,
    vaultedPaymentMethodAdditionalData: PrimerVaultedPaymentMethodAdditionalData,
    completion: @escaping (_ errors: [Error]?) -> Void
)

import UIKit
import PrimerSDK

class MerchantHeadlesVaultManagerViewController: UIViewController {

  var vaultManager = PrimerHeadlessUniversalCheckout.VaultManager()

  override func viewDidLoad() {
    super.viewDidLoad()

    do {
      // Before you configure your vault manager you must have started
      // PrimerHeadlessUniversalCheckout with a client token.
      try self.vaultManager.configure()

    } catch {
      // Handler the error
    }
  }

  func validateCVV(_ cvv: String, forVaultedPaymentMethodWithId id: String) {
    let vaultedCardAdditionalData = PrimerVaultedCardAdditionalData(cvv: cvv)
    // 👇 Call validate
    self.vaultManager.validate(vaultedPaymentMethodId: id, vaultedPaymentMethodAdditionalData: vaultedCardAdditionalData, completion: { errors in
      if let errors = errors {
        // Handle validation errors
      }
    })
  }
}