How to get the failed status from solidity require statement

Question

In a solidity method, there is a require statement which is being failed and transaction in web3j is throwing error as "Gas value is not enough".

Example: require(providedtimestamp > block.timestamp, "release time is before current time");

But in transactions from Etherscan, the error message is correctly displayed. Example: https://rinkeby.etherscan.io/tx/0x2ed757feef430f1695dcbbad8d13ee8df5ba630409465dbf82688dc5543dc52e

How to catch this error message during the method call using web3j.

score 0 · Answer 1 · answered Dec 12 '21 at 23:06

0

you can easily call the function and do a catch like this:

contract.function.call({from:accounts[1]}).then((result) => {
  console.log("Success! Got result: " + result);
}).catch((err) => {
  console.log("Failed with error: " + err);
});

answered Dec 12 '21 at 23:06

Jacopo Mosconi

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1

The solution you provided is web3js. But I am looking for web3-java. Thanks for your solution. – Sravan Kumar Dec 13 '21 at 07:39

score 0 · Answer 2 · answered Dec 15 '21 at 09:09

You should use try/catch to get an error description when an exception occures using web3.java.

try {
  TransactionReceipt balanceOf = test.transfer(new Address(address), transferBalance).get(); 
} catch (Exception e) {
  // Extract error string from exception
}

How to get the failed status from solidity require statement

2 Answers2