Phantom support via MetaMaskWallet

Author: 0xFirekeeper

Assets/Thirdweb/Runtime/Unity/Wallets/Core/MetaMaskWallet.cs

@@ -117,19 +117,32 @@ public async Task<string> SendTransaction(ThirdwebTransactionInput transaction)
                 Method = "eth_sendTransaction",
                 Params = new object[]
                 {
-                    new TransactionInput()
-                    {
-                        Nonce = transaction.Nonce,
-                        From = await GetAddress(),
-                        To = transaction.To,
-                        Gas = transaction.Gas,
-                        GasPrice = transaction.GasPrice,
-                        Value = transaction.Value,
-                        Data = transaction.Data,
-                        MaxFeePerGas = transaction.MaxFeePerGas,
-                        MaxPriorityFeePerGas = transaction.MaxPriorityFeePerGas,
-                        ChainId = new HexBigInteger(WebGLMetaMask.Instance.GetActiveChainId()),
-                    }
+                    transaction.GasPrice == null
+                        ? new
+                        {
+                            nonce = transaction.Nonce.HexValue,
+                            from = await GetAddress(),
+                            to = transaction.To,
+                            gas = transaction.Gas.HexValue,
+                            value = transaction.Value?.HexValue ?? "0x0",
+                            data = transaction.Data,
+                            maxFeePerGas = transaction.MaxFeePerGas.HexValue,
+                            maxPriorityFeePerGas = transaction.MaxPriorityFeePerGas?.HexValue ?? "0x0",
+                            chainId = WebGLMetaMask.Instance.GetActiveChainId().NumberToHex(),
+                            type = "0x2"
+                        }
+                        : new
+                        {
+                            nonce = transaction.Nonce.HexValue,
+                            from = await GetAddress(),
+                            to = transaction.To,
+                            gas = transaction.Gas.HexValue,
+                            value = transaction.Value?.HexValue ?? "0x0",
+                            data = transaction.Data,
+                            gasPrice = transaction.GasPrice.HexValue,
+                            chainId = WebGLMetaMask.Instance.GetActiveChainId().NumberToHex(),
+                            type = "0x0"
+                        }
                 }
             };
             return await WebGLMetaMask.Instance.RequestAsync<string>(rpcRequest);