From 5e0c0bacadab898152518437ceb63bf8b54c6652 Mon Sep 17 00:00:00 2001
From: Helius <wangdoubleone@gmail.com>
Date: Fri, 12 Aug 2022 22:27:34 +0800
Subject: [PATCH] finish NFT Active
---
src/main/java/cc/mrbird/febs/dapp/chain/EthService.java | 31 ++++++++++++++++++++++++++++++-
1 files changed, 30 insertions(+), 1 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 02acaf2..609cdfd 100644
--- a/src/main/java/cc/mrbird/febs/dapp/chain/EthService.java
+++ b/src/main/java/cc/mrbird/febs/dapp/chain/EthService.java
@@ -362,7 +362,36 @@
}
@Override
- public BigInteger safeMintNFT(String toAddress) {
+ public BigInteger totalSupplyNFT() {
+ try {
+ String methodName = "totalSupply";
+ 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 totalSupply = BigInteger.ZERO;
+ try {
+ ethCall = web3j.ethCall(transaction, DefaultBlockParameterName.LATEST).send();
+ List<Type> results = FunctionReturnDecoder.decode(ethCall.getValue(), function.getOutputParameters());
+ totalSupply = (BigInteger) results.get(0).getValue();
+ return totalSupply;
+ } catch (IOException e) {
+ e.printStackTrace();
+ }
+ } catch (Exception e) {
+ e.printStackTrace();
+ }
+ return BigInteger.ZERO;
+ }
+
+ @Override
+ public String safeMintNFT(String toAddress) {
String gas = getGas();
try {
--
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