import 'package:pcsdk/pcsdk.dart';
import 'package:pcsdk/models/pcloggingoptions.dart';

...

await PCSDK.setLogLevel(PCLoggingOptions.debug + PCLoggingOptions.sensitive);
await PCSDK.initialize();

import 'package:pcsdk/models/pcuser.dart';
import 'package:pcsdk/pcusersmanager.dart';

String userJSON = ... ; // String with user's data in JSON format

// Importing JSON info
PCUser user = await PCUsersManager.importUser(userJSON);

// Activating the user
if (await user.isActivated() == false) {
    await PCUsersManager.activate(user, activationCode);
}

// Registering
await PCUsersManager.register(user, deviceToken);

// Storing
await PCUsersManager.store(user, userName, passwordToStore);

List<PCUser> users = await PCUsersManager.listUsers();
PCUser firstUser = users.first;

// Getting the appropriate user.
// We are using the first stored user in this example
PCUser user = await PCUsersManager.listUsers().first;

// Getting the available transactions list for this user
List<String> transactionsIDs = await PCTransactionsManager.getTransactionsList(user);

// Getting transactions's data
// We are using the first transaction in the list in this example
PCTransaction transaction = await PCTransactionsManager.getTransaction(transactionsIDs.first, user);

// Transaction may contain the binary data
// It is necessary to download it before confirming or declining
if (transaction.hasBinaryData) {
    String? binaryDataURL = await transaction.getBinaryDataUrl();
    if (binaryDataURL == null) {
        await PCTransactionsManager.getTransactionBinaryData(transaction, user);
    }
}

// Providing password before processing
bool isReadyToSign = await user.isReadyToSign();
if (!isReadyToSign) {
     await PCUsersManager.submit(user, password);
}

// Confirming transaction
await PCTransactionsManager.sign([transaction], user);

// ... or declining transaction
await PCTransactionsManager.decline([transaction], user);

// Getting the appropriate user.
// We are using the first stored user in this example
PCUser user = await PCUsersManager.listUsers().first;

String transactionJSON = ... ; // String with transaction's data in JSON format

// Importing a transaction from JSON
PCTransaction transaction = await PCTransactionsManager.importTransaction(transactionJSON);

// Providing password before processing
bool isReadyToSign = await user.isReadyToSign();
if (!isReadyToSign) {
     await PCUsersManager.submit(user, password);
}

// Confirming transaction
PCConfirmation confirmation = await PCTransactionsManager.signOffline(transaction, user);
// PCConfirmation contains a confirmationCode to complete confirmation process on the server

// ... or declining transaction
PCDeclination declination = await PCTransactionsManager.declineOffline(transaction, user);
// PCDeclination contains a declineCode to complete decline process on the server