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Web3Service.cs
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using Nethereum.ABI;
using Nethereum.ABI.FunctionEncoding.Attributes;
using Nethereum.Contracts;
using Nethereum.Hex.HexTypes;
using Nethereum.Metamask;
using Nethereum.RPC.Eth.DTOs;
using Nethereum.Web3;
using System.Numerics;
namespace DeswapApp;
public class Web3Service(MetamaskHostProvider metamaskHostProvider, ILogger<Web3Service> logger)
{
private readonly string BaseABI = """
[
{
"type": "function",
"name": "contractKind",
"inputs": [],
"outputs": [
{
"name": "",
"type": "string",
"internalType": "string"
}
],
"stateMutability": "pure"
}
]
""";
private readonly string BarterABI = """
[
{"type":"function","name":"mint_ft2ft","inputs":[{"name":"baseAssetAddress","type":"address","internalType":"address"},{"name":"baseAssetAmount","type":"uint256","internalType":"uint256"},{"name":"quoteAssetAddress","type":"address","internalType":"address"},{"name":"quoteAssetAmount","type":"uint256","internalType":"uint256"},{"name":"maturityDate","type":"uint256","internalType":"uint256"}],"outputs":[{"name":"","type":"uint256","internalType":"uint256"}],"stateMutability":"payable"},
{"type":"function","name":"mint_nft2nft","inputs":[{"name":"baseAssetAddress","type":"address","internalType":"address"},{"name":"baseAssetId","type":"uint256","internalType":"uint256"},{"name":"quoteAssetAddress","type":"address","internalType":"address"},{"name":"maturityDate","type":"uint256","internalType":"uint256"}],"outputs":[{"name":"","type":"uint256","internalType":"uint256"}],"stateMutability":"payable"},
{"type":"function","name":"exercise_ft2ft","inputs":[{"name":"tokenId","type":"uint256","internalType":"uint256"}],"outputs":[],"stateMutability":"nonpayable"},
{"type":"function","name":"exercise_nft2nft","inputs":[{"name":"tokenId","type":"uint256","internalType":"uint256"},{"name":"assetTokenId","type":"uint256","internalType":"uint256"}],"outputs":[],"stateMutability":"nonpayable"},
{"type":"function","name":"burn","inputs":[{"name":"tokenId","type":"uint256","internalType":"uint256"}],"outputs":[],"stateMutability":"nonpayable"},
{"type":"function","name":"tokenMetadata","inputs":[{"name":"","type":"uint256","internalType":"uint256"}],"outputs":[
{"name":"writer","type":"address","internalType":"address"},
{"name":"maturityDate","type":"uint256","internalType":"uint256"},
{"name":"baseAssetKind","type":"uint8","internalType":"enum Util.AssetKind"},
{"name":"baseAssetAddress","type":"address","internalType":"address"},
{"name":"baseAssetAmount","type":"uint256","internalType":"uint256"},
{"name":"baseAssetTokenId","type":"uint256","internalType":"uint256"},
{"name":"quoteAssetKind","type":"uint8","internalType":"enum Util.AssetKind"},
{"name":"quoteAssetAddress","type":"address","internalType":"address"},
{"name":"quoteAssetAmount","type":"uint256","internalType":"uint256"},
{"name":"quoteAssetTokenId","type":"uint256","internalType":"uint256"}],"stateMutability":"view"}
]
""";
private readonly string LotteryABI = """
[
{"type":"function","name":"draw","inputs":[{"name":"tokenId","type":"uint256","internalType":"uint256"}],"outputs":[{"name":"","type":"address","internalType":"address"}],"stateMutability":"nonpayable"},
{"type":"function","name":"mint20","inputs":[{"name":"baseAssetAddress","type":"address","internalType":"address"},{"name":"baseAssetAmount","type":"uint256","internalType":"uint256"},{"name":"drawTime","type":"uint256","internalType":"uint256"},{"name":"amount","type":"uint256","internalType":"uint256"},{"name":"price","type":"uint256","internalType":"uint256"},{"name":"soldBp","type":"uint96","internalType":"uint96"}],"outputs":[{"name":"","type":"uint256","internalType":"uint256"}],"stateMutability":"payable"},
{"type":"function","name":"mint721","inputs":[{"name":"baseAssetAddress","type":"address","internalType":"address"},{"name":"baseAssetId","type":"uint256","internalType":"uint256"},{"name":"drawTime","type":"uint256","internalType":"uint256"},{"name":"amount","type":"uint256","internalType":"uint256"},{"name":"price","type":"uint256","internalType":"uint256"},{"name":"soldBp","type":"uint96","internalType":"uint96"}],"outputs":[{"name":"","type":"uint256","internalType":"uint256"}],"stateMutability":"payable"},
{"type":"function","name":"mint1155","inputs":[{"name":"baseAssetAddress","type":"address","internalType":"address"},{"name":"baseAssetId","type":"uint256","internalType":"uint256"},{"name":"baseAssetAmount","type":"uint256","internalType":"uint256"},{"name":"drawTime","type":"uint256","internalType":"uint256"},{"name":"amount","type":"uint256","internalType":"uint256"},{"name":"price","type":"uint256","internalType":"uint256"},{"name":"soldBp","type":"uint96","internalType":"uint96"}],"outputs":[{"name":"","type":"uint256","internalType":"uint256"}],"stateMutability":"payable"},
{"type":"function","name":"canDraw","inputs":[{"name":"tokenId","type":"uint256","internalType":"uint256"}],"outputs":[{"name":"","type":"bool","internalType":"bool"}],"stateMutability":"view"},
{"type":"function","name":"buy","inputs":[{"name":"tokenId","type":"uint256","internalType":"uint256"},{"name":"amount","type":"uint256","internalType":"uint256"}],"outputs":[],"stateMutability":"payable"},
{"type":"function","name":"tokenMetadata","inputs":[{"name":"","type":"uint256","internalType":"uint256"}],"outputs":[{"name":"drawTime","type":"uint256","internalType":"uint256"},{"name":"writer","type":"address","internalType":"address"},{"name":"tokenCount","type":"uint256","internalType":"uint256"},{"name":"isDrawed","type":"bool","internalType":"bool"},{"name":"assetKind","type":"uint8","internalType":"enum Util.AssetKind"},{"name":"defaultPrice","type":"uint256","internalType":"uint256"},{"name":"soldBp","type":"uint96","internalType":"uint96"},{"name":"baseAssetAddress","type":"address","internalType":"address"},{"name":"baseAssetAmount","type":"uint256","internalType":"uint256"},{"name":"baseAssetTokenId","type":"uint256","internalType":"uint256"}],"stateMutability":"view"}
]
""";
private readonly string RedEnvelopeABI = """
[
{"type":"function","name":"mint20","inputs":[{"name":"baseAssetAddress","type":"address","internalType":"address"},{"name":"baseAssetAmount","type":"uint256","internalType":"uint256"},{"name":"amount","type":"uint256","internalType":"uint256"},{"name":"kind","type":"uint8","internalType":"enum RedEnvelope.RedEnvelopeKind"}],"outputs":[{"name":"","type":"uint256","internalType":"uint256"}],"stateMutability":"payable"},
{"type":"function","name":"mint1155","inputs":[{"name":"baseAssetAddress","type":"address","internalType":"address"},{"name":"baseAssetId","type":"uint256","internalType":"uint256"},{"name":"baseAssetAmount","type":"uint256","internalType":"uint256"},{"name":"amount","type":"uint256","internalType":"uint256"},{"name":"kind","type":"uint8","internalType":"enum RedEnvelope.RedEnvelopeKind"}],"outputs":[{"name":"","type":"uint256","internalType":"uint256"}],"stateMutability":"payable"},
{"type":"function","name":"open","inputs":[{"name":"tokenId","type":"uint256","internalType":"uint256"}],"outputs":[{"name":"","type":"uint256","internalType":"uint256"}],"stateMutability":"nonpayable"}
]
""";
private readonly string RouletteABI = """
[
{"type":"function","name":"mint20","inputs":[{"name":"baseAssetAddress","type":"address","internalType":"address"},{"name":"baseAssetAmount","type":"uint256","internalType":"uint256"},{"name":"ownerFeeBp","type":"uint96","internalType":"uint96"}],"outputs":[{"name":"","type":"uint256","internalType":"uint256"}],"stateMutability":"payable"},
{"type":"function","name":"mint721","inputs":[{"name":"baseAssetAddress","type":"address","internalType":"address"},{"name":"baseAssetTokenId","type":"uint256","internalType":"uint256"}],"outputs":[{"name":"","type":"uint256","internalType":"uint256"}],"stateMutability":"payable"},
{"type":"function","name":"mint1155","inputs":[{"name":"baseAssetAddress","type":"address","internalType":"address"},{"name":"baseAssetTokenId","type":"uint256","internalType":"uint256"},{"name":"baseAssetAmount","type":"uint256","internalType":"uint256"}],"outputs":[{"name":"","type":"uint256","internalType":"uint256"}],"stateMutability":"payable"},
{"type":"function","name":"bet20","inputs":[{"name":"tokenId","type":"uint256","internalType":"uint256"},{"name":"baseAssetAmount","type":"uint256","internalType":"uint256"}],"outputs":[],"stateMutability":"nonpayable"},
{"type":"function","name":"bet721","inputs":[{"name":"tokenId","type":"uint256","internalType":"uint256"},{"name":"baseAssetId","type":"uint256","internalType":"uint256"}],"outputs":[],"stateMutability":"nonpayable"},
{"type":"function","name":"bet1155","inputs":[{"name":"tokenId","type":"uint256","internalType":"uint256"},{"name":"baseAssetId","type":"uint256","internalType":"uint256"},{"name":"baseAssetAmount","type":"uint256","internalType":"uint256"}],"outputs":[],"stateMutability":"nonpayable"},
{"type":"function","name":"open","inputs":[{"name":"tokenId","type":"uint256","internalType":"uint256"}],"outputs":[{"name":"","type":"address","internalType":"address"}],"stateMutability":"nonpayable"},
{"type":"function","name":"bettedAddressMap","inputs":[{"name":"id","type":"uint256","internalType":"uint256"},{"name":"addr","type":"address","internalType":"address"}],"outputs":[{"name":"isBeted","type":"bool","internalType":"bool"}],"stateMutability":"view"},
{"type":"function","name":"getTokenBetAmounts","inputs":[{"name":"tokenId","type":"uint256","internalType":"uint256"}],"outputs":[{"name":"","type":"uint256[]","internalType":"uint256[]"}],"stateMutability":"view"},
{"type":"function","name":"getTokenBetPlayers","inputs":[{"name":"tokenId","type":"uint256","internalType":"uint256"}],"outputs":[{"name":"","type":"address[]","internalType":"address[]"}],"stateMutability":"view"}
]
""";
private readonly string VoteABI = """
[
{"type":"function","name":"mint","inputs":[{"name":"title","type":"string","internalType":"string"},{"name":"choices","type":"bytes","internalType":"bytes"},{"name":"choiceLength","type":"uint256","internalType":"uint256"},{"name":"expireTime","type":"uint256","internalType":"uint256"}],"outputs":[{"name":"","type":"uint256","internalType":"uint256"}],"stateMutability":"payable"},
{"type":"function","name":"vote","inputs":[{"name":"tokenId","type":"uint256","internalType":"uint256"},{"name":"answer","type":"uint8","internalType":"enum Vote.Answer"}],"outputs":[],"stateMutability":"nonpayable"},
{"type":"function","name":"burn","inputs":[{"name":"tokenId","type":"uint256","internalType":"uint256"}],"outputs":[],"stateMutability":"nonpayable"},
{"type":"function","name":"tokenVoter","inputs":[{"name":"","type":"uint256","internalType":"uint256"},{"name":"","type":"address","internalType":"address"}],"outputs":[{"name":"","type":"bool","internalType":"bool"}],"stateMutability":"view"}
]
""";
private readonly string SicboABI = """
[
{"type":"function","name":"mint","inputs":[{"name":"baseAssetAddress","type":"address","internalType":"address"},{"name":"baseAssetAmount","type":"uint256","internalType":"uint256"}],"outputs":[{"name":"","type":"uint256","internalType":"uint256"}],"stateMutability":"payable"},
{"type":"function","name":"deposit","inputs":[{"name":"tokenId","type":"uint256","internalType":"uint256"},{"name":"baseAssetAmount","type":"uint256","internalType":"uint256"}],"outputs":[],"stateMutability":"nonpayable"},
{"type":"function","name":"placeBet","inputs":[{"name":"tokenId","type":"uint256","internalType":"uint256"},{"name":"baseAssetAmount","type":"uint256","internalType":"uint256"},{"name":"result","type":"uint8","internalType":"enum SicBo.DiceResults"}],"outputs":[{"name":"","type":"bool","internalType":"bool"},{"name":"","type":"uint256","internalType":"uint256"}],"stateMutability":"nonpayable"},
{"type":"function","name":"burn","inputs":[{"name":"tokenId","type":"uint256","internalType":"uint256"}],"outputs":[],"stateMutability":"nonpayable"}
]
""";
private readonly string WritingABI = """
[
{"type":"function","name":"mint","inputs":[{"name":"title","type":"string","internalType":"string"},{"name":"content","type":"string","internalType":"string"},{"name":"amount","type":"uint256","internalType":"uint256"},{"name":"price","type":"uint256","internalType":"uint256"}],"outputs":[{"name":"","type":"uint256","internalType":"uint256"}],"stateMutability":"payable"},
{"type":"function","name":"burn","inputs":[{"name":"tokenId","type":"uint256","internalType":"uint256"}],"outputs":[],"stateMutability":"nonpayable"},
{"type":"function","name":"tokenMetadata","inputs":[{"name":"","type":"uint256","internalType":"uint256"}],"outputs":[{"name":"title","type":"string","internalType":"string"},{"name":"content","type":"string","internalType":"string"},{"name":"writer","type":"address","internalType":"address"},{"name":"defaultPrice","type":"uint256","internalType":"uint256"},{"name":"tokenCount","type":"uint256","internalType":"uint256"}],"stateMutability":"view"},
{"type":"function","name":"collect","inputs":[{"name":"tokenId","type":"uint256","internalType":"uint256"},{"name":"amount","type":"uint256","internalType":"uint256"}],"outputs":[],"stateMutability":"payable"}
]
""";
private readonly string BlackJackABI = """
[
{"type":"function","name":"mint","inputs":[{"name":"amount","type":"uint256","internalType":"uint256"}],"outputs":[{"name":"","type":"uint256","internalType":"uint256"}],"stateMutability":"payable"},
{"type":"function","name":"deposit","inputs":[{"name":"tokenId","type":"uint256","internalType":"uint256"},{"name":"amount","type":"uint256","internalType":"uint256"}],"outputs":[],"stateMutability":"nonpayable"},
{"type":"function","name":"withdraw","inputs":[{"name":"tokenId","type":"uint256","internalType":"uint256"},{"name":"amount","type":"uint256","internalType":"uint256"}],"outputs":[],"stateMutability":"nonpayable"},
{"type":"function","name":"PlaceBet","inputs":[{"name":"tokenId","type":"uint256","internalType":"uint256"},{"name":"bet","type":"uint256","internalType":"uint256"}],"outputs":[],"stateMutability":"nonpayable"},
{"type":"function","name":"Split","inputs":[{"name":"tokenId","type":"uint256","internalType":"uint256"}],"outputs":[],"stateMutability":"nonpayable"},
{"type":"function","name":"Stand","inputs":[{"name":"tokenId","type":"uint256","internalType":"uint256"}],"outputs":[],"stateMutability":"nonpayable"},
{"type":"function","name":"StartNewGame","inputs":[{"name":"tokenId","type":"uint256","internalType":"uint256"},{"name":"bet","type":"uint256","internalType":"uint256"}],"outputs":[],"stateMutability":"nonpayable"},
{"type":"function","name":"Hit","inputs":[{"name":"tokenId","type":"uint256","internalType":"uint256"}],"outputs":[],"stateMutability":"nonpayable"},
{"type":"function","name":"Insurance","inputs":[{"name":"tokenId","type":"uint256","internalType":"uint256"}],"outputs":[],"stateMutability":"nonpayable"},
{"type":"function","name":"DoubleDown","inputs":[{"name":"tokenId","type":"uint256","internalType":"uint256"}],"outputs":[],"stateMutability":"nonpayable"},
{"type":"function","name":"GetGame","inputs":[{"name":"tokenId","type":"uint256","internalType":"uint256"},{"name":"user","type":"address","internalType":"address"}],
"outputs":[
{"name":"game","type":"tuple","internalType":"struct BlackJackNFT.Game","components":[
{"name":"Id","type":"uint256","internalType":"uint256"},
{"name":"Player","type":"address","internalType":"address"},
{"name":"SafeBalance","type":"uint256","internalType":"uint256"},
{"name":"OriginalBalance","type":"uint256","internalType":"uint256"},
{"name":"SplitCounter","type":"uint256","internalType":"uint256"},
{"name":"GamesPlayed","type":"uint256","internalType":"uint256"},
{"name":"PlayerBet","type":"uint256","internalType":"uint256"},
{"name":"InsuranceBet","type":"uint256","internalType":"uint256"},
{"name":"PlayerCard1","type":"uint256","internalType":"uint256"},
{"name":"PlayerCard2","type":"uint256","internalType":"uint256"},
{"name":"PlayerNewCard","type":"uint256","internalType":"uint256"},
{"name":"PlayerCardTotal","type":"uint256","internalType":"uint256"},
{"name":"PlayerSplitTotal","type":"uint256","internalType":"uint256"},
{"name":"DealerCard1","type":"uint256","internalType":"uint256"},
{"name":"DealerCard2","type":"uint256","internalType":"uint256"},
{"name":"DealerNewCard","type":"uint256","internalType":"uint256"},
{"name":"DealerCardTotal","type":"uint256","internalType":"uint256"},
{"name":"CanDoubleDown","type":"bool","internalType":"bool"},
{"name":"CanInsure","type":"bool","internalType":"bool"},
{"name":"CanSplit","type":"bool","internalType":"bool"},
{"name":"IsSplitting","type":"bool","internalType":"bool"},
{"name":"IsSoftHand","type":"bool","internalType":"bool"},
{"name":"IsRoundInProgress","type":"bool","internalType":"bool"},
{"name":"DealerMsg","type":"string","internalType":"string"}
]}],"stateMutability":"view"}
]
""";
private readonly MetamaskHostProvider _metamaskHostProvider = metamaskHostProvider;
private readonly ILogger<Web3Service> _logger = logger;
private readonly HexBigInteger DefaultFee = new(BigInteger.Parse("1000000000000000")); // default: 0.001 eth
[Function("balanceOf", "uint256")]
public class Erc20BalanceOfFunction : FunctionMessage
{
[Parameter("address", "_owner", 1)]
public string Owner { get; set; } = "";
}
public async Task<BigInteger> Erc20BalanceOf(string userAddress, string contractAddress)
{
var balanceOfFunctionMessage = new Erc20BalanceOfFunction()
{
Owner = userAddress,
};
var web3 = await _metamaskHostProvider.GetWeb3Async();
var balanceHandler = web3.Eth.GetContractQueryHandler<Erc20BalanceOfFunction>();
var balance = await balanceHandler.QueryAsync<BigInteger>(contractAddress, balanceOfFunctionMessage);
return balance;
}
public async Task<decimal> Erc20BalanceOf(string userAddress, ERC20Contract contract)
{
BigInteger baseBalanceInWei = await Erc20BalanceOf(userAddress, contract.Address);
return Web3.Convert.FromWei(baseBalanceInWei, contract.Decimals);
}
[Function("decimals", "uint8")]
public class Erc20DecimalsFunction : FunctionMessage
{
}
public async Task<int> Erc20Decimals(string contractAddress)
{
var message = new Erc20DecimalsFunction();
var web3 = await _metamaskHostProvider.GetWeb3Async();
var handler = web3.Eth.GetContractQueryHandler<Erc20DecimalsFunction>();
var result = await handler.QueryAsync<int>(contractAddress, message);
return result;
}
[Function("symbol", "string")]
public class Erc20SymbolFunction : FunctionMessage
{
}
public async Task<string> Erc20Symbol(string contractAddress)
{
var message = new Erc20SymbolFunction();
var web3 = await _metamaskHostProvider.GetWeb3Async();
var handler = web3.Eth.GetContractQueryHandler<Erc20SymbolFunction>();
var result = await handler.QueryAsync<string>(contractAddress, message);
return result;
}
[Function("ownerOf", "address")]
public class Erc721OwnerOfFunction : FunctionMessage
{
[Parameter("uint256", "tokenId", 1)]
public BigInteger TokenId { get; set; }
}
public async Task<string> Erc721OwnerOf(string contractAddress, long tokenId)
{
var ownerOfFunctionMessage = new Erc721OwnerOfFunction()
{
TokenId = tokenId,
};
var web3 = await _metamaskHostProvider.GetWeb3Async();
var balanceHandler = web3.Eth.GetContractQueryHandler<Erc721OwnerOfFunction>();
var owner = await balanceHandler.QueryAsync<string>(contractAddress, ownerOfFunctionMessage);
return owner;
}
[Function("balanceOf", "uint256")]
public class Erc721BalanceOfFunction : FunctionMessage
{
[Parameter("address", "_owner", 1)]
public string Owner { get; set; } = "";
}
public async Task<int> Erc721BalanceOf(string contractAddress, string userAddress)
{
var message = new Erc721BalanceOfFunction()
{
Owner = userAddress,
};
var web3 = await _metamaskHostProvider.GetWeb3Async();
var balanceHandler = web3.Eth.GetContractQueryHandler<Erc721BalanceOfFunction>();
var owner = await balanceHandler.QueryAsync<int>(contractAddress, message);
return owner;
}
[Function("balanceOf", "uint256")]
public class Erc1155BalanceOfFunction : FunctionMessage
{
[Parameter("address", "account", 1)]
public string Account { get; set; } = "";
[Parameter("uint256", "id", 2)]
public BigInteger Id { get; set; }
}
public async Task<int> Erc1155BalanceOf(string userAddress, string contractAddress, long tokenId)
{
var message = new Erc1155BalanceOfFunction()
{
Account = userAddress,
Id = tokenId,
};
var web3 = await _metamaskHostProvider.GetWeb3Async();
var balanceHandler = web3.Eth.GetContractQueryHandler<Erc1155BalanceOfFunction>();
var balance = await balanceHandler.QueryAsync<int>(contractAddress, message);
_logger.LogInformation("erc1155 balance of, {}, {}, {}", tokenId, balance, message);
return balance;
}
[Function("isApprovedForAll", "bool")]
public class Erc1155IsApprovedForAllFunction : FunctionMessage
{
[Parameter("address", "account", 1)]
public string Account { get; set; } = "";
[Parameter("address", "operator", 2)]
public string Operator { get; set; } = "";
}
public async Task<bool> Erc1155IsApprovedForAll(string userAddress, string operatorAddress, string contractAddress)
{
var message = new Erc1155IsApprovedForAllFunction()
{
Account = userAddress,
Operator = operatorAddress,
};
var web3 = await _metamaskHostProvider.GetWeb3Async();
var handler = web3.Eth.GetContractQueryHandler<Erc1155IsApprovedForAllFunction>();
var result = await handler.QueryAsync<bool>(contractAddress, message);
return result;
}
[Function("setApprovalForAll")]
public class Erc1155SetApprovalForAllFunction : FunctionMessage
{
[Parameter("address", "operator", 1)]
public string Operator { get; set; } = "";
[Parameter("bool", "approved", 2)]
public bool Approved { get; set; }
}
public async Task<string> Erc1155SetApprovalForAll(string operatorAddress, bool approved, string contractAddress)
{
var web3 = await _metamaskHostProvider.GetWeb3Async();
var contract = web3.Eth.GetContract<Erc1155SetApprovalForAllFunction>(contractAddress);
var callsFunction = contract.GetFunction("setApprovalForAll");
var value = new HexBigInteger(0);
var receipt = await SendTransactionThroughMetamask(
callsFunction,
_metamaskHostProvider.SelectedNetworkChainId,
_metamaskHostProvider.SelectedAccount,
value,
operatorAddress,
approved
);
return receipt.TransactionHash.ToString();
}
[Function("allowance", "uint256")]
public class AllowanceFunction : FunctionMessage
{
[Parameter("address", "addr1", 1)]
public string Addr1 { get; set; } = "";
[Parameter("address", "addr2", 2)]
public string Addr2 { get; set; } = "";
}
public async Task<BigInteger> GetAllowance(string payAddr, string recvAddr, string contractAddress)
{
var allowanceFunctionMessage = new AllowanceFunction()
{
Addr1 = payAddr,
Addr2 = recvAddr,
};
var web3 = await _metamaskHostProvider.GetWeb3Async();
var handler = web3.Eth.GetContractQueryHandler<AllowanceFunction>();
var balance = await handler.QueryAsync<BigInteger>(contractAddress, allowanceFunctionMessage);
return balance;
}
public async Task<decimal> GetAllowance(string payAddr, string recvAddr, ERC20Contract contract)
{
var balanceInWei = await GetAllowance(payAddr, recvAddr, contract.Address);
return Web3.Convert.FromWei(balanceInWei, contract.Decimals);
}
[Function("getApproved", "address")]
public class GetApprovedFunction : FunctionMessage
{
[Parameter("uint256", "tokenId", 1)]
public BigInteger TokenId { get; set; }
}
public async Task<string> Erc721GetApproved(long tokenId, string nftContract)
{
var message = new GetApprovedFunction()
{
TokenId = tokenId,
};
var web3 = await _metamaskHostProvider.GetWeb3Async();
var handler = web3.Eth.GetContractQueryHandler<GetApprovedFunction>();
return await handler.QueryAsync<string>(nftContract, message);
}
// 授权 lottery721Addr 可以拥有 tokenId
public async Task<string> Erc721Approve(string lottery721Addr, long tokenId, string erc721Address)
{
var web3 = await _metamaskHostProvider.GetWeb3Async();
string erc721ApproveAbi = """[{"type":"function","name":"approve","inputs":[{"name":"to","type":"address","internalType":"address"},{"name":"tokenId","type":"uint256","internalType":"uint256"}],"outputs":[],"stateMutability":"nonpayable"}]""";
var contract = web3.Eth.GetContract(erc721ApproveAbi, erc721Address);
var callsFunction = contract.GetFunction("approve");
var value = new HexBigInteger(0);
var receipt = await SendTransactionThroughMetamask(callsFunction, _metamaskHostProvider.SelectedNetworkChainId, _metamaskHostProvider.SelectedAccount, value, lottery721Addr, tokenId);
return receipt.TransactionHash.ToString();
}
// ERC-1155 Uri
[Function("uri", "string")]
public class UriFunction : FunctionMessage
{
[Parameter("uint256", "tokenId", 1)]
public BigInteger TokenId { get; set; }
}
public async Task<string> GetUri(string contractAddress, long tokenId)
{
var UriFunctionMessage = new UriFunction()
{
TokenId = tokenId,
};
var web3 = await _metamaskHostProvider.GetWeb3Async();
var balanceHandler = web3.Eth.GetContractQueryHandler<UriFunction>();
var uri = await balanceHandler.QueryAsync<string>(contractAddress, UriFunctionMessage);
_logger.LogInformation("get uri, {}, {}", tokenId, uri);
return uri;
}
// ERC-721 tokenUri
[Function("tokenURI", "string")]
public class TokenUriFunction : FunctionMessage
{
[Parameter("uint256", "tokenId", 1)]
public BigInteger TokenId { get; set; }
}
public async Task<string> GetTokenUri(string contractAddress, long tokenId)
{
var TokenUriFunctionMessage = new TokenUriFunction()
{
TokenId = tokenId,
};
var web3 = await _metamaskHostProvider.GetWeb3Async();
var balanceHandler = web3.Eth.GetContractQueryHandler<TokenUriFunction>();
var uri = await balanceHandler.QueryAsync<string>(contractAddress, TokenUriFunctionMessage);
_logger.LogInformation("get token uri, {}, {}", tokenId, uri);
return uri;
}
[Event("Transfer")]
public class TransferEventDTO : IEventDTO
{
[Parameter("address", "from", 1, true)]
public string From { get; set; } = "";
[Parameter("address", "to", 2, true)]
public string To { get; set; } = "";
[Parameter("uint256", "tokenId", 3, true)]
public BigInteger TokenId { get; set; }
}
// erc1155
[Event("TransferSingle")]
public class TransferSingleEventDTO : IEventDTO
{
[Parameter("address", "operator", 1, true)]
public string Operator { get; set; } = "";
[Parameter("address", "from", 2, true)]
public string From { get; set; } = "";
[Parameter("address", "to", 3, true)]
public string To { get; set; } = "";
[Parameter("uint256", "id", 4, false)]
public BigInteger Id { get; set; }
[Parameter("uint256", "value", 5, false)]
public BigInteger Value { get; set; }
}
[Event("Betted")]
public class SicboBettedEventDTO : IEventDTO
{
[Parameter("address", "player", 1, true)]
public string Player { get; set; } = "";
[Parameter("uint256", "tokenId", 2, true)]
public BigInteger TokenId { get; set; }
[Parameter("bool", "isPlayerWin", 3, false)]
public bool IsPlayerWin { get; set; }
[Parameter("uint256", "diceNumbers", 4, false)]
public BigInteger DiceNumbers { get; set; }
[Parameter("uint8", "result", 5, false)]
public short DiceResult { get; set; }
}
private async Task<TransactionReceipt> SendTransactionThroughMetamask(Function callsFunction, long chainId, string from, HexBigInteger value, params object[] functionInput)
{
_logger.LogInformation("before SendTransactionThroughMetamask estimateGas, {}, chainId={} from={}, value={}, functionInput={}", callsFunction.ContractAddress, chainId, from, value, functionInput);
var gas = await callsFunction.EstimateGasAsync(
from,
null,
value,
functionInput
);
_logger.LogInformation("SendTransactionThroughMetamask estimateGas, chainId={} from={}, gas={}, value={}, functionInput={}", chainId, from, gas, value, functionInput);
if (chainId == 5003)
{
// mantle 支持1559，但是priority fee建议填0, baseFee填 0.02gwei
return await callsFunction.SendTransactionAndWaitForReceiptAsync(
new HexBigInteger(2),
from,
gas,
value,
new HexBigInteger(BigInteger.Parse("20000000")),
new HexBigInteger(0),
functionInput
);
}
else if (chainId == 245022926 || chainId == 534351)
{
// https://docs.neonevm.org/docs/evm_compatibility/overview
// https://docs.scroll.io/en/technology/chain/differences/
// neon, scroll doesn't support eip1559
return await callsFunction.SendTransactionAndWaitForReceiptAsync(
from,
gas,
value,
CancellationToken.None,
functionInput
);
}
else
{
return await callsFunction.SendTransactionAndWaitForReceiptAsync(
new HexBigInteger(2),
from,
gas,
value,
null,
null,
functionInput
);
}
}
// 用户取消授权的话，会报异常，调用方应该处理这个异常
public async Task<string> Erc20Approve(string nftAddr, BigInteger wad, string erc20Contract)
{
var web3 = await _metamaskHostProvider.GetWeb3Async();
string erc20ApproveAbi = """[{"inputs":[{"internalType":"address","name":"guy","type":"address"},{"internalType":"uint256","name":"wad","type":"uint256"}],"name":"approve","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"}]""";
var contract = web3.Eth.GetContract(erc20ApproveAbi, erc20Contract);
var callsFunction = contract.GetFunction("approve");
var value = new HexBigInteger(0);
var receipt = await SendTransactionThroughMetamask(callsFunction, _metamaskHostProvider.SelectedNetworkChainId, _metamaskHostProvider.SelectedAccount, value, nftAddr, wad);
return receipt.TransactionHash.ToString();
}
[FunctionOutput]
public class BarterTokenMetadataOutputDTO : IFunctionOutputDTO
{
[Parameter("address", "writer", 1)]
public string Writer { get; set; } = "";
[Parameter("uint256", "maturityDate", 2)]
public long MaturityDate { get; set; }
[Parameter("uint8", "baseAssetKind", 3)]
public short BaseAssetKind { get; set; }
[Parameter("address", "baseAssetAddress", 4)]
public string BaseAssetAddress { get; set; } = "";
[Parameter("uint256", "baseAssetAmount", 5)]
public BigInteger BaseAssetAmount { get; set; }
[Parameter("uint256", "baseAssetTokenId", 6)]
public BigInteger BaseAssetTokenId { get; set; }
[Parameter("uint8", "quoteAssetKind", 7)]
public short QuoteAssetKind { get; set; }
[Parameter("address", "quoteAssetAddress", 8)]
public string QuoteAssetAddress { get; set; } = "";
[Parameter("uint256", "quoteAssetAmount", 9)]
public BigInteger QuoteAssetAmount { get; set; }
[Parameter("uint256", "quoteAssetTokenId", 10)]
public BigInteger QuoteAssetTokenId { get; set; }
}
public async Task<BarterTokenMetadataOutputDTO> GetBarterTokenMetadata(long tokenId, string contractAddress)
{
var web3 = await _metamaskHostProvider.GetWeb3Async();
var contract = web3.Eth.GetContract(BarterABI, contractAddress);
var callsFunction = contract.GetFunction("tokenMetadata");
var output = await callsFunction.CallDeserializingToObjectAsync<BarterTokenMetadataOutputDTO>(tokenId);
return output;
}
public async Task<long> MintBarter_FT2FT(string baseAssetAddress, BigInteger baseAssetAmount, string quoteAssetAddress, BigInteger quoteAssetAmount, long maturityUnix, string nftAddress)
{
var web3 = await _metamaskHostProvider.GetWeb3Async();
var contract = web3.Eth.GetContract(BarterABI, nftAddress);
var callsFunction = contract.GetFunction("mint_ft2ft");
var value = DefaultFee;
_logger.LogInformation("debug1, {}", value);
var receipt = await SendTransactionThroughMetamask(
callsFunction,
_metamaskHostProvider.SelectedNetworkChainId,
_metamaskHostProvider.SelectedAccount,
value,
baseAssetAddress,
baseAssetAmount,
quoteAssetAddress,
quoteAssetAmount,
maturityUnix
);
var events = receipt.DecodeAllEvents<TransferEventDTO>();
return events.Where(item => item.Event.To.Equals(_metamaskHostProvider.SelectedAccount, StringComparison.CurrentCultureIgnoreCase)).Select(item => (long)item.Event.TokenId).First();
}
public async Task<long> MintBarter_NFT2NFT(string baseAssetAddress, BigInteger baseAssetId, string quoteAssetAddress, long maturityUnix, string nftAddress)
{
var web3 = await _metamaskHostProvider.GetWeb3Async();
var contract = web3.Eth.GetContract(BarterABI, nftAddress);
var callsFunction = contract.GetFunction("mint_nft2nft");
var value = DefaultFee;
var receipt = await SendTransactionThroughMetamask(
callsFunction,
_metamaskHostProvider.SelectedNetworkChainId,
_metamaskHostProvider.SelectedAccount,
value,
baseAssetAddress,
baseAssetId,
quoteAssetAddress,
maturityUnix
);
var events = receipt.DecodeAllEvents<TransferEventDTO>();
return events.Where(item => item.Event.To.Equals(_metamaskHostProvider.SelectedAccount, StringComparison.CurrentCultureIgnoreCase)).Select(item => (long)item.Event.TokenId).First();
}
public async Task<ulong> ExerciseBarter_FT2FT(long tokenId, string nftAddress)
{
var web3 = await _metamaskHostProvider.GetWeb3Async();
var contract = web3.Eth.GetContract(BarterABI, nftAddress);
var callsFunction = contract.GetFunction("exercise_ft2ft");
var value = new HexBigInteger(0);
var receipt = await SendTransactionThroughMetamask(
callsFunction,
_metamaskHostProvider.SelectedNetworkChainId,
_metamaskHostProvider.SelectedAccount,
value,
tokenId
);
return receipt.Status.ToUlong();
}
public async Task<ulong> ExerciseBarter_NFT2NFT(long tokenId, long assetTokenId, string nftAddress)
{
var web3 = await _metamaskHostProvider.GetWeb3Async();
var contract = web3.Eth.GetContract(BarterABI, nftAddress);
var callsFunction = contract.GetFunction("exercise_nft2nft");
var value = new HexBigInteger(0);
var receipt = await SendTransactionThroughMetamask(
callsFunction,
_metamaskHostProvider.SelectedNetworkChainId,
_metamaskHostProvider.SelectedAccount,
value,
tokenId,
assetTokenId
);
return receipt.Status.ToUlong();
}
public async Task<string> BurnBarter(long tokenId, string nftAddress)
{
var web3 = await _metamaskHostProvider.GetWeb3Async();
var contract = web3.Eth.GetContract(BarterABI, nftAddress);
var callsFunction = contract.GetFunction("burn");
var value = new HexBigInteger(0);
var receipt = await SendTransactionThroughMetamask(
callsFunction,
_metamaskHostProvider.SelectedNetworkChainId,
_metamaskHostProvider.SelectedAccount,
value,
tokenId
);
return receipt.TransactionHash.ToString();
}
public async Task<long> MintLottery20(string baseAssetAddress, BigInteger baseAssetAmount, long maturityUnix, int amount, decimal defaultPrice, int soldPercent, string nftAddress)
{
var web3 = await _metamaskHostProvider.GetWeb3Async();
var contract = web3.Eth.GetContract(LotteryABI, nftAddress);
var callsFunction = contract.GetFunction("mint20");
var value = DefaultFee;
var priceInWei = Web3.Convert.ToWei(defaultPrice);
var receipt = await SendTransactionThroughMetamask(
callsFunction,
_metamaskHostProvider.SelectedNetworkChainId,
_metamaskHostProvider.SelectedAccount,
value,
baseAssetAddress,
baseAssetAmount,
maturityUnix,
amount,
priceInWei,
soldPercent * 100
);
var events = receipt.DecodeAllEvents<TransferSingleEventDTO>();
return (long)events.First().Event.Id;
}
public async Task<long> MintLottery721(string baseAssetAddress, BigInteger baseAssetId, long maturityUnix, int amount, decimal defaultPrice, int soldPercent, string nftAddress)
{
var web3 = await _metamaskHostProvider.GetWeb3Async();
var contract = web3.Eth.GetContract(LotteryABI, nftAddress);
var callsFunction = contract.GetFunction("mint721");
var value = DefaultFee;
var priceInWei = Web3.Convert.ToWei(defaultPrice);
var receipt = await SendTransactionThroughMetamask(
callsFunction,
_metamaskHostProvider.SelectedNetworkChainId,
_metamaskHostProvider.SelectedAccount,
value,
baseAssetAddress,
baseAssetId,
maturityUnix,
amount,
priceInWei,
soldPercent * 100
);
var events = receipt.DecodeAllEvents<TransferSingleEventDTO>();
return (long)events.First().Event.Id;
}
public async Task<long> MintLottery1155(string baseAssetAddress, BigInteger baseAssetId, long baseAssetAmount, long maturityUnix, int amount, decimal defaultPrice, int soldPercent, string nftAddress)
{
var web3 = await _metamaskHostProvider.GetWeb3Async();
var contract = web3.Eth.GetContract(LotteryABI, nftAddress);
var callsFunction = contract.GetFunction("mint1155");
var value = DefaultFee;
var priceInWei = Web3.Convert.ToWei(defaultPrice);
var receipt = await SendTransactionThroughMetamask(
callsFunction,
_metamaskHostProvider.SelectedNetworkChainId,
_metamaskHostProvider.SelectedAccount,
value,
baseAssetAddress,
baseAssetId,
baseAssetAmount,
maturityUnix,
amount,
priceInWei,
soldPercent * 100
);
var events = receipt.DecodeAllEvents<TransferSingleEventDTO>();
return (long)events.First().Event.Id;
}
[Event("Drawed")]
public class DrawedEventDTO : IEventDTO
{
[Parameter("address", "winner", 1, true)]
public string Winner { get; set; } = "";
[Parameter("uint256", "tokenId", 2, true)]
public BigInteger TokenId { get; set; }
}
// return winner address
public async Task<string> DrawLottery(long tokenId, string nftAddress)
{
var web3 = await _metamaskHostProvider.GetWeb3Async();
var contract = web3.Eth.GetContract(LotteryABI, nftAddress);
var callsFunction = contract.GetFunction("draw");
var value = new HexBigInteger(0);
var receipt = await SendTransactionThroughMetamask(callsFunction, _metamaskHostProvider.SelectedNetworkChainId, _metamaskHostProvider.SelectedAccount, value, tokenId);
var events = receipt.DecodeAllEvents<DrawedEventDTO>();
return events.First().Event.Winner;
}
public async Task<string> BuyLottery(long tokenId, int amount, decimal defaultPrice, string nftAddress)
{
var web3 = await _metamaskHostProvider.GetWeb3Async();
var contract = web3.Eth.GetContract(LotteryABI, nftAddress);
var callsFunction = contract.GetFunction("buy");
var priceInWei = Web3.Convert.ToWei(defaultPrice);
var value = new HexBigInteger(priceInWei * amount);
var receipt = await SendTransactionThroughMetamask(callsFunction, _metamaskHostProvider.SelectedNetworkChainId, _metamaskHostProvider.SelectedAccount, value, tokenId, amount);
return receipt.TransactionHash.ToString();
}
public async Task<bool> CanDrawLottery(long tokenId, string nftAddress)
{
var web3 = await _metamaskHostProvider.GetWeb3Async();
var contract = web3.Eth.GetContract(LotteryABI, nftAddress);
var callsFunction = contract.GetFunction("canDraw");
var result = await callsFunction.CallAsync<bool>(tokenId);
return result;
}
[FunctionOutput]
public class LotteryTokenMetadataOutputDTO : IFunctionOutputDTO
{
[Parameter("uint256", "drawTime", 1)]
public long DrawTime { get; set; }
[Parameter("address", "writer", 2)]
public string Writer { get; set; } = "";
[Parameter("uint256", "tokenCount", 3)]
public long TokenCount { get; set; }
[Parameter("bool", "isDrawed", 4)]
public bool IsDrawed { get; set; }
[Parameter("uint256", "assetKind", 5)]
public int AssetKind { get; set; }
[Parameter("uint256", "defaultPrice", 6)]
public BigInteger DefaultPrice { get; set; }
[Parameter("uint256", "soldBp", 7)]
public int SoldBp { get; set; }
[Parameter("address", "baseAssetAddress", 8)]
public string BaseAssetAddress { get; set; } = "";
[Parameter("uint256", "baseAssetAmount", 9)]
public BigInteger BaseAssetAmount { get; set; }
[Parameter("uint256", "baseAssetTokenId", 10)]
public BigInteger BaseAssetTokenId { get; set; }
}
public async Task<LotteryTokenMetadataOutputDTO> GetLotteryTokenMetadata(long tokenId, string nftAddress)
{
var web3 = await _metamaskHostProvider.GetWeb3Async();
var contract = web3.Eth.GetContract(LotteryABI, nftAddress);
var callsFunction = contract.GetFunction("tokenMetadata");
var result = await callsFunction.CallAsync<LotteryTokenMetadataOutputDTO>(tokenId);
return result;
}
// mint a red envelope
public async Task<long> MintRedEnvelope20(string baseAssetAddress, BigInteger baseAssetAmount, int amount, RedEnvelopeKind kind, string nftAddress)
{
var web3 = await _metamaskHostProvider.GetWeb3Async();
var contract = web3.Eth.GetContract(RedEnvelopeABI, nftAddress);
var callsFunction = contract.GetFunction("mint20");
var value = DefaultFee; // 0.001 fee
var receipt = await SendTransactionThroughMetamask(
callsFunction,
_metamaskHostProvider.SelectedNetworkChainId,
_metamaskHostProvider.SelectedAccount,
value,
baseAssetAddress,
baseAssetAmount,
amount,
kind
);
var events = receipt.DecodeAllEvents<TransferSingleEventDTO>();
return (long)events.First().Event.Id;
}
public async Task<long> MintRedEnvelope1155(string baseAssetAddress, BigInteger baseAssetId, BigInteger baseAssetAmount, int amount, RedEnvelopeKind kind, string nftAddress)
{
var web3 = await _metamaskHostProvider.GetWeb3Async();
var contract = web3.Eth.GetContract(RedEnvelopeABI, nftAddress);
var callsFunction = contract.GetFunction("mint1155");
var value = DefaultFee; // 0.001 fee
var receipt = await SendTransactionThroughMetamask(
callsFunction,
_metamaskHostProvider.SelectedNetworkChainId,
_metamaskHostProvider.SelectedAccount,
value,
baseAssetAddress,
baseAssetId,
baseAssetAmount,
amount,
kind
);
var events = receipt.DecodeAllEvents<TransferSingleEventDTO>();
return (long)events.First().Event.Id;
}
public async Task<string> OpenRedEnvelope(long tokenId, string nftAddress)
{
var web3 = await _metamaskHostProvider.GetWeb3Async();
var contract = web3.Eth.GetContract(RedEnvelopeABI, nftAddress);
var callsFunction = contract.GetFunction("open");
var value = new HexBigInteger(0);
var receipt = await SendTransactionThroughMetamask(callsFunction, _metamaskHostProvider.SelectedNetworkChainId, _metamaskHostProvider.SelectedAccount, value, tokenId);
return receipt.TransactionHash.ToString();
}
// roulette
public async Task<bool> UserBettedRoulette(long tokenId, string nftAddress)
{
var web3 = await _metamaskHostProvider.GetWeb3Async();
var contract = web3.Eth.GetContract(RouletteABI, nftAddress);
var callsFunction = contract.GetFunction("bettedAddressMap");
var result = await callsFunction.CallAsync<bool>(tokenId, _metamaskHostProvider.SelectedAccount);
return result;
}
public async Task<List<BigInteger>> GetTokenBetAmounts(long tokenId, string nftAddress)
{
var web3 = await _metamaskHostProvider.GetWeb3Async();
var contract = web3.Eth.GetContract(RouletteABI, nftAddress);
var callsFunction = contract.GetFunction("getTokenBetAmounts");
try
{
var result = await callsFunction.CallAsync<List<BigInteger>>(tokenId);
return result;
}
catch (Exception e)
{
_logger.LogError("error, {}", e);
return [];
}
}
public async Task<List<string>> GetTokenBetPlayers(long tokenId, string nftAddress)
{
var web3 = await _metamaskHostProvider.GetWeb3Async();
var contract = web3.Eth.GetContract(RouletteABI, nftAddress);
var callsFunction = contract.GetFunction("getTokenBetPlayers");
try
{
var result = await callsFunction.CallAsync<List<string>>(tokenId);
return result;
}
catch (Exception e)
{
_logger.LogError("error, {}", e);
return [];
}
}
public async Task<long> MintRoulette20(string erc20Address, BigInteger erc20Amount, int ownerFeeBp, string nftAddress)
{
var web3 = await _metamaskHostProvider.GetWeb3Async();
var contract = web3.Eth.GetContract(RouletteABI, nftAddress);
var callsFunction = contract.GetFunction("mint20");
var value = DefaultFee; // 0.001 fee
var receipt = await SendTransactionThroughMetamask(
callsFunction,
_metamaskHostProvider.SelectedNetworkChainId,
_metamaskHostProvider.SelectedAccount,
value,
erc20Address,
erc20Amount,
ownerFeeBp
);
var events = receipt.DecodeAllEvents<TransferEventDTO>();
return (long)events.First().Event.TokenId;
}
public async Task<long> MintRoulette721(string baseAssetAddress, BigInteger baseAssetTokenId, string nftAddress)
{
var web3 = await _metamaskHostProvider.GetWeb3Async();
var contract = web3.Eth.GetContract(RouletteABI, nftAddress);
var callsFunction = contract.GetFunction("mint721");
var value = DefaultFee; // 0.001 fee
var receipt = await SendTransactionThroughMetamask(
callsFunction,
_metamaskHostProvider.SelectedNetworkChainId,
_metamaskHostProvider.SelectedAccount,
value,
baseAssetAddress,
baseAssetTokenId
);
var events = receipt.DecodeAllEvents<TransferEventDTO>();
return (long)events.First().Event.TokenId;
}
public async Task<long> MintRoulette1155(string baseAssetAddress, BigInteger baseAssetTokenId, BigInteger baseAssetAmount, string nftAddress)
{
var web3 = await _metamaskHostProvider.GetWeb3Async();
var contract = web3.Eth.GetContract(RouletteABI, nftAddress);
var callsFunction = contract.GetFunction("mint1155");
var value = DefaultFee; // 0.001 fee
var receipt = await SendTransactionThroughMetamask(
callsFunction,
_metamaskHostProvider.SelectedNetworkChainId,
_metamaskHostProvider.SelectedAccount,
value,
baseAssetAddress,
baseAssetTokenId,
baseAssetAmount
);
var events = receipt.DecodeAllEvents<TransferEventDTO>();
return (long)events.First().Event.TokenId;
}
public async Task<string> BetRoulette20(long tokenId, BigInteger baseAssetAmount, string nftAddress)
{