MonCash nan yon app Flutter — kijan pou m louvri paj peman an epi retounen nan app la?

Bon achitekti: backend ou kreye peman an epi voye redirectUrl la bay app la. App la jis louvri paj la epi tann li fini.

Yon fason senp ak webview_flutter: louvri paj MonCash la, epi detekte lè WebView la rive sou URL retou ou.

WebViewController controller = WebViewController()
  ..setJavaScriptMode(JavaScriptMode.unrestricted)
  ..setNavigationDelegate(NavigationDelegate(
    onNavigationRequest: (req) {
      if (req.url.startsWith('https://api.boutikmwen.ht/moncash/return')) {
        // Kite backend lan verifye peman an, epi fèmen WebView la
        Navigator.of(context).pop(true);
        return NavigationDecision.prevent;
      }
      return NavigationDecision.navigate;
    },
  ))
  ..loadRequest(Uri.parse(redirectUrl));

Apre WebView la fèmen, mande backend ou estati kòmand lan:

final status = await api.get('/orders/$orderId/status'); // backend deja verifye ak MonCash

Enpòtan:

• Pa verifye peman an nan app la. Se backend lan ki rele RetrieveTransactionPayment.
• Si kliyan an fèmen WebView la anvan l fini, montre "N ap verifye peman w lan…" epi tcheke estati a ankò kèk segonn apre. Konn gen yon ti reta.
• Pa janm mete client_secret la nan app Flutter la.