Quickstart: iOS WKWebView

// Create the web view and show it
private lazy var webView: WKWebView = {
  let config = WKWebViewConfiguration()
  // allowsInlineMediaPlayback is required, as it defaults to false on some devices like iPads.
  // If unset, will cause the camera capture flow to be fullscreen instead of inline.
  config.allowsInlineMediaPlayback = true

  let webView = WKWebView(frame: .zero, configuration: config)
  return webView
}()
webView.navigationDelegate = self
webView.allowsBackForwardNavigationGestures = false
webView.scrollView.bounces = false
// Add the web view and set up its contstraints
view.addSubview(webView)
webView.translatesAutoresizingMaskIntoConstraints = false
NSLayoutConstraint.activate([
    webView.leadingAnchor.constraint(equalTo: view.leadingAnchor),
    webView.trailingAnchor.constraint(equalTo: view.trailingAnchor),
    webView.topAnchor.constraint(equalTo: view.topAnchor),
    webView.bottomAnchor.constraint(equalTo: view.bottomAnchor)
])

// Add the Persona configuration options as query items.
// See the Persona docs (<http://documentation.withpersona.com)> for full documentation.
var components = URLComponents(string: "<https://withpersona.com/verify")>
components?.queryItems = [
    URLQueryItem(name: "is-webview", value: "true"),
    URLQueryItem(name: "environment", value: "sandbox"),
    URLQueryItem(name: "template-id", value: "tmpl_JAZjHuAT738Q63BdgCuEJQre"),
    URLQueryItem(name: "reference-id", value: "myReference"),
    URLQueryItem(name: "redirect-uri", value: "<https://myRedirectUri.com>"),
    // optional - specify theme for new inquiry
    // URLQueryItem(name: "theme-id", value: "the_Z7S2Ltor9fp2oEGXMLXBPsHa"),
]

// Create and load the Persona URL request
guard let urlString = components?.string, let url = URL(string: urlString) else { return }
let request = URLRequest(url: url)
webView.load(request)

extension MyViewController: WKNavigationDelegate {

    /// Handle navigation actions from the web view.
    func webView(_ webView: WKWebView, 
        decidePolicyFor navigationAction: WKNavigationAction, 
        decisionHandler: @escaping (WKNavigationActionPolicy) -> Void) {
        
        // Check if we are being redirected to our `redirectUri`. This happens once verification is completed.
        guard let redirectUri = navigationAction.request.url?.absoluteString, redirectUri.starts(with: "<https://myRedirectUri.com")> else {
            // We're not being redirected, so load the URL.
            decisionHandler(.allow)
            return
        }

        // At this point we're done, so we don't need to load the URL.
        decisionHandler(.cancel)

        // Get the inquiryId from the query string parameters.
        guard let queryParams = parseQueryParameters(url: navigationAction.request.url),
            let inquiryId = queryParams["inquiry-id"] else {

            // If we do not have an inquiry ID we know we have failed verification.
            // You will likely want to transition the view here to show this.
            return
        }

        // If we have an inquiry ID we know we have passed verification.
        // You will likely want to transition the view here to show this.
    }
}