forceExit function

Future<String?> forceExit(HermezCompressedAmount amount, String? accountIndex, Token token, String privateKey, { dynamic gasLimit = GAS_LIMIT, dynamic gasPrice = GAS_MULTIPLIER, })

Makes a force Exit. This is the L1 transaction equivalent of Exit.

@param {BigInt} amount - The amount to be withdrawn @param {String} accountIndex - The account index in hez address format e.g. hez:DAI:4444 @param {Object} token - The token information object as returned from the API @param {Object} privateKey - Signer data used to build a Signer to send the transaction @param {Number} gasLimit - Optional gas limit @param {Number} gasMultiplier - Optional gas multiplier

Implementation

Future<String?> forceExit(HermezCompressedAmount amount, String? accountIndex,
    Token token, String privateKey,
    {gasLimit = GAS_LIMIT, gasPrice = GAS_MULTIPLIER}) async {
  final hermezContract = await ContractParser.fromAssets('HermezABI.json',
      getCurrentEnvironment()!.contracts['Hermez']!, "Hermez");

  final credentials =
      await HermezSDK.currentWeb3Client!.credentialsFromPrivateKey(privateKey);
  final from = await credentials.extractAddress();

  EtherAmount ethGasPrice = EtherAmount.inWei(BigInt.from(gasPrice));

  int nonce = await HermezSDK.currentWeb3Client!
      .getTransactionCount(from, atBlock: BlockNum.pending());

  final transactionParameters = [
    BigInt.zero,
    BigInt.from(getAccountIndex(accountIndex)),
    BigInt.zero,
    BigInt.from(amount.value),
    BigInt.from(token.id!),
    BigInt.one,
    hexToBytes('0x')
  ];

  print(transactionParameters);

  Transaction transaction = Transaction.callContract(
      contract: hermezContract,
      function: _addL1Transaction(hermezContract),
      parameters: transactionParameters,
      maxGas: gasLimit,
      gasPrice: ethGasPrice,
      nonce: nonce);
  String? txHash;
  try {
    txHash = await HermezSDK.currentWeb3Client!.sendTransaction(
        credentials, transaction,
        chainId: getCurrentEnvironment()!.chainId);
  } catch (e) {
    print(e.toString());
  }

  print(txHash);

  return txHash;
}