口座を収集して、データを活用する商品を構築する

curl https://api.stripe.com/v1/customers \
  -u "
sk_test_BQokikJOvBiI2HlWgH4olfQ2
:" \
  -d email={{CUSTOMER_EMAIL}} \
  -d name={{CUSTOMER_NAME}}

curl https://api.stripe.com/v1/financial_connections/sessions \
  -u "
sk_test_BQokikJOvBiI2HlWgH4olfQ2
:" \
  -d "account_holder[type]"=customer \
  -d "account_holder[customer]"=
{{CUSTOMER_ID}} \
  -d "permissions[]"=balances \
  -d "permissions[]"=ownership \
  -d "permissions[]"=payment_method \
  -d "permissions[]"=transactions

import StripeFinancialConnections

class ViewController: UIViewController {
  @IBOutlet weak var connectFinancialAccountButton: UIButton!
  var financialConnectionsSheet: FinancialConnectionsSheet?
  let backendCheckoutUrl = URL(string: "Your backend endpoint")! // Your backend endpoint

  override func viewDidLoad() {
    super.viewDidLoad()

    connectFinancialAccountButton.addTarget(self, action: #selector(didTapConnectFinancialAccountButton), for: .touchUpInside)
    connectFinancialAccountButton.isEnabled = false

    // MARK: Fetch the FinancialConnectionsSession client secret and publishable key
    var request = URLRequest(url: backendCheckoutUrl)
    request.httpMethod = "POST"
    let task = URLSession.shared.dataTask(with: request, completionHandler: { [weak self] (data, response, error) in
      guard let data = data,
            let json = try? JSONSerialization.jsonObject(with: data, options: []) as? [String : Any],
            let clientSecret = json["client_secret"] as? String,
            let publishableKey = json["publishable_key"] as? String,
            let self = self else {
        // Handle error
        return
      }

      // MARK: Set your Stripe publishable key - this allows the SDK to make requests to Stripe for your account
      STPAPIClient.shared.publishableKey = publishableKey

      self.financialConnectionsSheet = FinancialConnectionsSheet(
        financialConnectionsSessionClientSecret: clientSecret,
        returnURL: "https://your-app-domain.com/stripe-redirect"
      )

      DispatchQueue.main.async {
        self.connectFinancialAccountButton.isEnabled = true
      }
    })
    task.resume()
  }

  @objc
  func didTapConnectFinancialAccountButton() {
      // implemented in the next steps
  }
}

@objc
func didTapConnectFinancialAccountButton() {
  // MARK: Start the financial connections flow
  financialConnectionsSheet?.present(
    from: self,
    completion: { result in
        switch result {
        case .completed(session: let financialConnectionsSession):
            let accounts = financialConnectionsSession.accounts.data.filter { $0.last4 != nil }
            let accountInfos = accounts.map { "\($0.institutionName) ....\($0.last4!)" }
            print("Completed with \(accountInfos.joined(separator: "\n")) accounts")
        case .canceled:
            print("Canceled!")
        case .failed(let error):
            print("Failed!")
            print(error)
        }
  })

}