callContractOffChain method
Implementation
Future<Map<String, dynamic>> callContractOffChain(
String walletAddress,
String contractAddress,
String data, {
String? network = "fuse",
Map? transactionBody,
num? ethAmount,
BigInt? amountInWei,
Map? txMetadata,
}) async {
EthereumAddress wallet = EthereumAddress.fromHex(walletAddress);
EthereumAddress contract = EthereumAddress.fromHex(contractAddress);
Uint8List callContractData;
String encodedCallContractData;
String nonce = await getNonceForRelay();
DeployedContract TransferManagerContract =
await _contract('TransferManager', _transferManagerContractAddress);
if (ethAmount != null) {
Decimal ethAmountDecimal = Decimal.parse(ethAmount.toString());
Decimal decimals = Decimal.parse(pow(10, 18).toString());
BigInt amount = BigInt.parse((ethAmountDecimal * decimals).toString());
callContractData =
TransferManagerContract.function('callContract').encodeCall([
wallet,
contract,
amount,
HEX.decode(data),
]);
encodedCallContractData = '0x' + HEX.encode(callContractData);
} else {
callContractData =
TransferManagerContract.function('callContract').encodeCall([
wallet,
contract,
amountInWei,
HEX.decode(data),
]);
encodedCallContractData = '0x' + HEX.encode(callContractData);
}
String signature = await signOffChain(
_transferManagerContractAddress,
walletAddress,
BigInt.from(0),
encodedCallContractData,
nonce,
BigInt.from(0),
BigInt.from(_defaultGasLimit),
);
return {
"walletAddress": walletAddress,
"methodData": encodedCallContractData,
"communityAddress": _defaultCommunityContractAddress,
"nonce": nonce,
"network": network,
"methodName": "callContract",
"gasPrice": 0,
"gasLimit": _defaultGasLimit,
"signature": signature,
"walletModule": "TransferManager",
"transactionBody": transactionBody,
"txMetadata": txMetadata,
};
}