encounteredExceptionOrError method

bool? encounteredExceptionOrError (OperationException exception, {bool showSnackBar = true})

<p>This function is used to check if any exceptions or error encountered. The return type is <code>boolean</code>.</p> <p><strong>params</strong>:</p> <ul> <li><code>exception</code>: OperationException which occur when calling for graphql post request</li> <li><code>showSnackBar</code>: Tell if the the place where this function is called wants a SnackBar on error</li> </ul> <p><strong>returns</strong>:</p> <ul> <li><code>bool?</code>: returns a bool whether or not their is error, can be null</li> </ul>

Implementation

bool? encounteredExceptionOrError(
  OperationException exception, \{
  bool showSnackBar = true,
\}) \{
  if server link is wrong.
  if (exception.linkException != null) \{
    debugPrint(exception.linkException.toString());
    if (showSnackBar) \{
      WidgetsBinding.instance.addPostFrameCallback(
        (_) =\> navigationService.showTalawaErrorSnackBar(
          "Server not running/wrong url",
          MessageType.info,
        ),
      );
    \}
    return false;
  \}

  looping through graphQL errors.
  debugPrint(exception.graphqlErrors.toString());
  for (int i = 0; i \< exception.graphqlErrors.length; i++) \{
    if the error message is "Access Token has expired. Please refresh session.: Undefined location"
    if (exception.graphqlErrors[i].message ==
        refreshAccessTokenExpiredException.message) \{
      print('token refreshed');
      refreshAccessToken(userConfig.currentUser.refreshToken!).then(
        (value) =\> graphqlConfig
            .getToken()
            .then((value) =\> databaseFunctions.init()),
      );
      print('client refreshed');
      return true;
    \}

    if the error message is "User is not authenticated"
    if (exception.graphqlErrors[i].message == userNotAuthenticated.message) \{
      print('client refreshed');
      refreshAccessToken(userConfig.currentUser.refreshToken!).then(
        (value) =\> graphqlConfig
            .getToken()
            .then((value) =\> databaseFunctions.init()),
      );
      return true;
    \}

    if the error message is "User not found"
    if (exception.graphqlErrors[i].message == userNotFound.message) \{
      if (showSnackBar) \{
        WidgetsBinding.instance.addPostFrameCallback(
          (_) =\> navigationService.showTalawaErrorDialog(
            "No account registered with this email",
            MessageType.error,
          ),
        );
      \}
      return false;
    \}

    if the error message is "Membership Request already exists"
    if (exception.graphqlErrors[i].message == memberRequestExist.message) \{
      if (showSnackBar) \{
        WidgetsBinding.instance.addPostFrameCallback(
          (_) =\> navigationService.showTalawaErrorDialog(
            "Membership request already exist",
            MessageType.error,
          ),
        );
      \}
      return false;
    \}

    if the error message is "Invalid credentials"
    if (exception.graphqlErrors[i].message == wrongCredentials.message) \{
      if (showSnackBar) \{
        WidgetsBinding.instance.addPostFrameCallback(
          (_) =\> navigationService.showTalawaErrorDialog(
            "Enter a valid password",
            MessageType.error,
          ),
        );
      \}
      return false;
    \}

    if the error message is "Organization not found"
    if (exception.graphqlErrors[i].message == organizationNotFound.message) \{
      if (showSnackBar) \{
        WidgetsBinding.instance.addPostFrameCallback(
          (_) =\> navigationService.showTalawaErrorDialog(
            "Organization Not Found",
            MessageType.error,
          ),
        );
      \}
      return false;
    \}

    if the error message is "Email address already exists"
    if (exception.graphqlErrors[i].message == emailAccountPresent.message) \{
      if (showSnackBar) \{
        WidgetsBinding.instance.addPostFrameCallback(
          (_) =\> navigationService.showTalawaErrorDialog(
            "Account with this email already registered",
            MessageType.error,
          ),
        );
      \}
      return false;
    \}
    if (exception.graphqlErrors[i].message ==
        notifFeatureNotInstalled.message) \{
      if (showSnackBar) \{
        WidgetsBinding.instance.addPostFrameCallback(
          (_) =\> navigationService.showTalawaErrorDialog(
            "Notification Feature is not installed",
            MessageType.error,
          ),
        );
      \}
      return false;
    \}
  \}
  if the error is unknown

  WidgetsBinding.instance.addPostFrameCallback(
    (_) =\> navigationService.showTalawaErrorDialog(
      "Something went wrong!",
      MessageType.error,
    ),
  );
  return false;
\}