From c62c27263103dc5fbeea549d333431b758340166 Mon Sep 17 00:00:00 2001
From: Helius <wangdoubleone@gmail.com>
Date: Wed, 25 May 2022 16:23:07 +0800
Subject: [PATCH] fix

---
 src/main/java/cc/mrbird/febs/dapp/chain/EthService.java |   58 ++++++++++++++++++++++++++++++++++++++++++++++++++++++----
 1 files changed, 54 insertions(+), 4 deletions(-)

diff --git a/src/main/java/cc/mrbird/febs/dapp/chain/EthService.java b/src/main/java/cc/mrbird/febs/dapp/chain/EthService.java
index 47e31b9..c616545 100644
--- a/src/main/java/cc/mrbird/febs/dapp/chain/EthService.java
+++ b/src/main/java/cc/mrbird/febs/dapp/chain/EthService.java
@@ -1,5 +1,6 @@
 package cc.mrbird.febs.dapp.chain;
 
+import cn.hutool.core.util.HexUtil;
 import cn.hutool.core.util.StrUtil;
 import cn.hutool.http.HttpUtil;
 import com.alibaba.fastjson.JSONObject;
@@ -16,7 +17,9 @@
 import org.web3j.crypto.TransactionEncoder;
 import org.web3j.protocol.Web3j;
 import org.web3j.protocol.core.DefaultBlockParameterName;
+import org.web3j.protocol.core.Request;
 import org.web3j.protocol.core.methods.request.Transaction;
+import org.web3j.protocol.core.methods.response.EthBlockNumber;
 import org.web3j.protocol.core.methods.response.EthCall;
 import org.web3j.protocol.core.methods.response.EthGetTransactionCount;
 import org.web3j.protocol.core.methods.response.EthSendTransaction;
@@ -57,6 +60,15 @@
         web3j = Web3j.build(service);
     }
 
+    public static void main(String[] args) throws IOException {
+        HttpService service = new HttpService("https://bsc-dataseed1.ninicoin.io");
+        Web3j web3j = Web3j.build(service);
+        Request<?, EthBlockNumber> request = web3j.ethBlockNumber();
+        EthBlockNumber send = request.send();
+        BigInteger bigInteger = Numeric.decodeQuantity(send.getResult());
+        System.out.println("0x113d6d0");
+    }
+
     @Override
     public BigInteger balanceOfUnDecimal(String fromAddress) {
         try {
@@ -91,8 +103,39 @@
     }
 
     @Override
+    public int decimals() {
+        try {
+            String methodName = "decimals";
+            List<Type> inputParameters = new ArrayList<>();
+            List<TypeReference<?>> outputParameters = new ArrayList<>();
+            TypeReference<Uint256> typeReference = new TypeReference<Uint256>() {
+            };
+            outputParameters.add(typeReference);
+            Function function = new Function(methodName, inputParameters, outputParameters);
+            String data = FunctionEncoder.encode(function);
+            Transaction transaction = Transaction.createEthCallTransaction(null, contractAddress, data);
+
+            EthCall ethCall;
+            BigInteger decimals = BigInteger.ZERO;
+            try {
+                ethCall = web3j.ethCall(transaction, DefaultBlockParameterName.LATEST).send();
+                List<Type> results = FunctionReturnDecoder.decode(ethCall.getValue(), function.getOutputParameters());
+                decimals = (BigInteger) results.get(0).getValue();
+                return decimals.intValue();
+            } catch (IOException e) {
+                e.printStackTrace();
+            }
+
+
+        } catch (Exception e) {
+            e.printStackTrace();
+        }
+        return 0;
+    }
+
+    @Override
     public BigDecimal balanceOf(String fromAddress) {
-        int decimal = 6;
+        int decimal = decimals();
         BigInteger balanceValue = balanceOfUnDecimal(fromAddress);
 
         double res = new BigDecimal(balanceValue).divide(BigDecimal.valueOf(Math.pow(10, decimal)), 8, RoundingMode.HALF_DOWN).doubleValue();
@@ -135,9 +178,16 @@
     }
 
     public String getGas() {
-        String resp = HttpUtil.get("https://etherscan.io/autoUpdateGasTracker.ashx?sid=75f30b765180f29e2b7584b8501c9124");
-        JSONObject data = JSONObject.parseObject(resp);
-        String gas = data.getString("avgPrice");
+        String gas;
+        if (url.contains("infura.io")) {
+            String resp = HttpUtil.get("https://etherscan.io/autoUpdateGasTracker.ashx?sid=75f30b765180f29e2b7584b8501c9124");
+            JSONObject data = JSONObject.parseObject(resp);
+            gas = data.getString("avgPrice");
+        } else {
+            String resp = HttpUtil.get("https://gbsc.blockscan.com/gasapi.ashx?apikey=key&method=gasoracle");
+            JSONObject data = JSONObject.parseObject(resp);
+            gas = data.getString("FastGasPrice");
+        }
         return StrUtil.isBlank(gas) ? "35" : gas;
     }
 

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