# SumSub Flutter Plugin

import 'package:flutter_idensic_mobile_sdk_plugin/idensic_mobile_sdk.dart';

void launchSNSMobileSDK() async {

  final String apiUrl = "https://test-api.sumsub.com"; // https://api.sumsub.com
  final String accessToken = "your access token";

  final onTokenExpiration = () async {
    // call your backend to fetch a new access token (this is just an example)
    Future<String>.delayed(Duration(seconds: 2), () {
      return "_act-66d142f3-88c1-4af6-ae6e-38578cc21c97";
    });
  };

  final SNSStatusChangedHandler onStatusChanged = (SNSMobileSDKStatus newStatus, SNSMobileSDKStatus prevStatus) {
    print("The SDK status was changed: $prevStatus -> $newStatus");
  };

  final snsMobileSDK = SNSMobileSDK.Builder(apiUrl)
    .withAccessToken(accessToken, onTokenExpiration)
    .withDebug(true)
    .withHandlers(onStatusChanged: onStatusChanged)
    .build();

  final SNSMobileSDKResult result = await snsMobileSDK.launch();

  print("Completed with result: ${result}");
}

SNSMobileSDKResult(
  success: false,
  status: SNSMobileSDKStatus.Failed,
  errorType: SNSMobileSDKErrorType.Unauthorized,
  errorMsg: "Unauthorized access with accessToken=[your access token]"
)

      body: Center(
        child: Column(
          mainAxisAlignment: MainAxisAlignment.center,
          children: <Widget>[
...

            Container(
              alignment: Alignment.center,
              child: RaisedButton(onPressed: () => launchSNSMobileSDK(),
              child: Text("Launch SumSub SDK")),
            ),

...
          ],
        ),
      ),