feat: gas estimation

.github/workflows/main.yml

@@ -59,7 +59,7 @@ jobs:
         with:
           fetch-depth: 0
       - name: Download WebGL Build Artifact
-        uses: actions/download-artifact@v4.1.7
+        uses: actions/download-artifact@v3
         with:
           name: Build-WebGL
           path: Build/WebGL

Packages/com.walletconnect.web3modal/Runtime/Evm/EvmService.cs

@@ -109,7 +109,49 @@ public Task<string> SendTransactionAsync(string addressTo, BigInteger value, str
 
             return SendTransactionAsyncCore(addressTo, value, data);
         }
+
+
+        // -- Send Raw Transaction ------------------------------------
+
+        public Task<string> SendRawTransactionAsync(string signedTransaction)
+        {
+            if (string.IsNullOrWhiteSpace(signedTransaction))
+                throw new ArgumentNullException(nameof(signedTransaction));
+
+            return SendRawTransactionAsyncCore(signedTransaction);
+        }
+
+
+        // -- Estimate Gas --------------------------------------------
+
+        public Task<BigInteger> EstimateGasAsync(string addressTo, BigInteger value, string data = null)
+        {
+            if (string.IsNullOrWhiteSpace(addressTo))
+                throw new ArgumentNullException(nameof(addressTo));
 
+            return EstimateGasAsyncCore(addressTo, value, data);
+        }
+
+        public Task<BigInteger> EstimateGasAsync(string contractAddress, string contractAbi, string methodName, BigInteger value = default, params object[] arguments)
+        {
+            if (string.IsNullOrWhiteSpace(contractAddress))
+                throw new ArgumentNullException(nameof(contractAddress));
+            if (string.IsNullOrWhiteSpace(contractAbi))
+                throw new ArgumentNullException(nameof(contractAbi));
+            if (string.IsNullOrWhiteSpace(methodName))
+                throw new ArgumentNullException(nameof(methodName));
+
+            return EstimateGasAsyncCore(contractAddress, contractAbi, methodName, value, arguments);
+        }
+
+
+        // -- Gas Price ------------------------------------------------
+
+        public Task<BigInteger> GetGasPriceAsync()
+        {
+            return GetGasPriceAsyncCore();
+        }
+
         protected abstract Task InitializeAsyncCore();
         protected abstract Task<BigInteger> GetBalanceAsyncCore(string address);
         protected abstract Task<string> SignMessageAsyncCore(string message);
@@ -119,5 +161,9 @@ public Task<string> SendTransactionAsync(string addressTo, BigInteger value, str
         protected abstract Task<TReturn> ReadContractAsyncCore<TReturn>(string contractAddress, string contractAbi, string methodName, object[] arguments = null);
         protected abstract Task<string> WriteContractAsyncCore(string contractAddress, string contractAbi, string methodName, BigInteger value = default, BigInteger gas = default, params object[] arguments);
         protected abstract Task<string> SendTransactionAsyncCore(string addressTo, BigInteger value, string data = null);
+        protected abstract Task<string> SendRawTransactionAsyncCore(string signedTransaction);
+        protected abstract Task<BigInteger> EstimateGasAsyncCore(string addressTo, BigInteger value, string data = null);
+        protected abstract Task<BigInteger> EstimateGasAsyncCore(string contractAddress, string contractAbi, string methodName, BigInteger value = default, params object[] arguments);
+        protected abstract Task<BigInteger> GetGasPriceAsyncCore();
     }
 }

Packages/com.walletconnect.web3modal/Runtime/Evm/NethereumEvmService.cs

@@ -1,6 +1,7 @@
+using System;
 using System.Numerics;
-using System.Threading;
 using System.Threading.Tasks;
+using Nethereum.Contracts;
 using Nethereum.Hex.HexConvertors.Extensions;
 using Nethereum.RPC.Eth.DTOs;
 using Nethereum.Signer;
@@ -123,7 +124,7 @@ protected override async Task<string> WriteContractAsyncCore(string contractAddr
         {
             var contract = Web3.Eth.GetContract(contractAbi, contractAddress);
             var function = contract.GetFunction(methodName);
-
+            
             return await function.SendTransactionAsync(
                 null, // will be automatically filled by interceptor
                 new HexBigInteger(gas),
@@ -140,5 +141,40 @@ protected override Task<string> SendTransactionAsyncCore(string addressTo, BigIn
             var transactionInput = new TransactionInput(data, addressTo, new HexBigInteger(value));
             return Web3.Client.SendRequestAsync<string>("eth_sendTransaction", null, transactionInput);
         }
+
+
+        // -- Send Raw Transaction ------------------------------------
+
+        protected override Task<string> SendRawTransactionAsyncCore(string signedTransaction)
+        {
+            return Web3.Eth.Transactions.SendRawTransaction.SendRequestAsync(signedTransaction);
+        }
+
+
+        // -- Estimate Gas ---------------------------------------------
+
+        protected override async Task<BigInteger> EstimateGasAsyncCore(string addressTo, BigInteger value, string data = null)
+        {
+            var transactionInput = new TransactionInput(data, addressTo, new HexBigInteger(value));
+            return await Web3.Eth.Transactions.EstimateGas.SendRequestAsync(transactionInput);
+        }
+
+        protected override async Task<BigInteger> EstimateGasAsyncCore(string contractAddress, string contractAbi, string methodName, BigInteger value = default, params object[] arguments)
+        {
+            var contract = Web3.Eth.GetContract(contractAbi, contractAddress);
+            var function = contract.GetFunction(methodName);
+
+            var transactionInput = new TransactionInput(function.GetData(arguments), contractAddress, new HexBigInteger(value));
+            return await Web3.Eth.Transactions.EstimateGas.SendRequestAsync(transactionInput);
+        }
+
+
+        // -- Get Gas Price -------------------------------------------
+
+        protected override async Task<BigInteger> GetGasPriceAsyncCore()
+        {
+            var hexBigInt = await Web3.Eth.GasPrice.SendRequestAsync();
+            return hexBigInt.Value;
+        }
     }
 }

Packages/com.walletconnect.web3modal/Runtime/Evm/WagmiEvmService.cs

@@ -1,5 +1,9 @@
 using System.Numerics;
 using System.Threading.Tasks;
+using Nethereum.ABI.FunctionEncoding;
+using Nethereum.ABI.Model;
+using Nethereum.Contracts;
+using UnityEngine;
 using WalletConnect.Web3Modal.WebGl.Wagmi;
 
 namespace WalletConnect.Web3Modal
@@ -30,7 +34,7 @@ protected override Task<bool> VerifyMessageSignatureAsyncCore(string address, st
 
         protected override Task<string> SignTypedDataAsyncCore(string dataJson)
         {
-            return WagmiInterop.SignTypedDataAsync(dataJson);;
+            return WagmiInterop.SignTypedDataAsync(dataJson);
         }
 
         protected override Task<bool> VerifyTypedDataSignatureAsyncCore(string address, string dataJson, string signature)
@@ -52,6 +56,35 @@ protected override Task<string> SendTransactionAsyncCore(string addressTo, BigIn
         {
             return WagmiInterop.SendTransactionAsync(addressTo, value.ToString(), data);
         }
+
+        protected override Task<string> SendRawTransactionAsyncCore(string signedTransaction)
+        {
+            throw new System.NotImplementedException();
+        }
+
+        protected override async Task<BigInteger> EstimateGasAsyncCore(string addressTo, BigInteger value, string data = null)
+        {
+            var result = await  WagmiInterop.EstimateGasAsync(addressTo, value.ToString(), data);
+            return BigInteger.Parse(result);
+        }
+
+        protected override async Task<BigInteger> EstimateGasAsyncCore(string contractAddress, string contractAbi, string methodName, BigInteger value = default, params object[] arguments)
+        {
+            var contract = new ContractBuilder(contractAbi, contractAddress);
+            var function = contract.GetFunctionAbi(methodName);
+
+            var functionBuilder = new FunctionBuilder(contractAddress, function);
+            var data = functionBuilder.GetData(arguments);
+
+            var result = await WagmiInterop.EstimateGasAsync(contractAddress, value.ToString(), data);
+            return BigInteger.Parse(result);
+        }
+
+        protected override async Task<BigInteger> GetGasPriceAsyncCore()
+        {
+            var result = await WagmiInterop.GetGasPriceAsync();
+            return BigInteger.Parse(result);
+        }
     }
 #endif
 }

Packages/com.walletconnect.web3modal/Runtime/WebGL/Wagmi/WagmiInterop.cs

@@ -238,6 +238,29 @@ public static Task<string> SendTransactionAsync(SendTransactionParameter paramet
         {
             return InteropCallAsync<SendTransactionParameter, string>(WagmiMethods.SendTransaction, parameter);
         }
+
+
+        // -- Estimate Gas --------------------------------------------
+
+        public static Task<string> EstimateGasAsync(string to, string value = "0", string data = null)
+        {
+            var parameter = new EstimateGasParameter
+            {
+                to = to,
+                value = value,
+                data = data
+            };
+
+            return InteropCallAsync<EstimateGasParameter, string>(WagmiMethods.EstimateGas, parameter);
+        }
+
+
+        // -- Get Gas Price -------------------------------------------
+
+        public static Task<string> GetGasPriceAsync()
+        {
+            return InteropCallAsync<object, string>(WagmiMethods.GetGasPrice, null);
+        }
     }
 #endif
 }

Packages/com.walletconnect.web3modal/Runtime/WebGL/Wagmi/WagmiModel.cs

@@ -124,4 +124,12 @@ public struct AbiParam
         public string name;
         public string type;
     }
+
+    [Serializable]
+    public class EstimateGasParameter
+    {
+        public string to;
+        public string value;
+        public string data;
+    }
 }

Samples/AppKit Sample/Assets/Scripts/AppKitInit.cs

@@ -8,12 +8,12 @@ namespace WalletConnect.Web3Modal.Sample
     public class AppKitInit : MonoBehaviour
     {
         [SerializeField] private SceneReference _menuScene;
-
+        
         private async void Start()
         {
             Debug.Log($"[AppKit Init] Initializing AppKit...");
             await Web3Modal.InitializeAsync();
-
+            
             var wc = WalletConnectConnector.WalletConnectInstance;
             if (wc is { IsInitialized: true })
             {

Samples/AppKit Sample/Assets/Scripts/Dapp.cs

@@ -212,9 +212,14 @@ public async void OnPersonalSignButton()
                 var account = await Web3Modal.GetAccountAsync();
 
                 const string message = "Hello from Unity!";
+
+                Debug.Log("Signing message...");
                 var signature = await Web3Modal.Evm.SignMessageAsync(message);
-                var isValid = await Web3Modal.Evm.VerifyMessageSignatureAsync(account.Address, message, signature);
 
+                Debug.Log("Verifying signature...");
+                var isValid = await Web3Modal.Evm.VerifyMessageSignatureAsync(account.Address, message, signature);
+
+                Debug.Log($"Signature valid: {isValid}");
                 Notification.ShowMessage($"Signature valid: {isValid}");
             }
             catch (RpcResponseException e)

Samples/AppKit Sample/Packages/packages-lock.json

@@ -164,17 +164,17 @@
       "depth": 1,
       "source": "registry",
       "dependencies": {
-        "com.unity.2d.sprite": "1.0.0",
         "com.unity.ugui": "1.0.0",
-        "com.unity.modules.animation": "1.0.0",
-        "com.unity.modules.imageconversion": "1.0.0",
+        "com.unity.2d.sprite": "1.0.0",
+        "com.unity.modules.ui": "1.0.0",
         "com.unity.modules.physics": "1.0.0",
+        "com.unity.modules.animation": "1.0.0",
         "com.unity.modules.physics2d": "1.0.0",
-        "com.unity.modules.ui": "1.0.0",
         "com.unity.modules.uielements": "1.0.0",
+        "com.unity.modules.imageconversion": "1.0.0",
         "com.unity.modules.unitywebrequest": "1.0.0",
-        "com.unity.modules.unitywebrequesttexture": "1.0.0",
-        "com.unity.modules.unitywebrequestwww": "1.0.0"
+        "com.unity.modules.unitywebrequestwww": "1.0.0",
+        "com.unity.modules.unitywebrequesttexture": "1.0.0"
       },
       "url": "https://packages.unity.com"
     },