gluk64 · justinjmoses · on May 18, 2019 · justinjmoses · on May 18, 2019 · amaurer
diff --git a/reason.js b/reason.js
 // This is universal, works with Infura -- set provider accordingly

 const ethers = require('ethers')
 //const provider = ethers.getDefaultProvider('rinkeby')
 const provider = new ethers.providers.JsonRpcProvider(process.env.WEB3_URL)

 function hex_to_ascii(str1) {
 	var hex  = str1.toString();
 	var str = '';
 	for (var n = 0; n < hex.length; n += 2) {
 		str += String.fromCharCode(parseInt(hex.substr(n, 2), 16));
 	}
 	return str;
 }

 async function reason() {
    var args = process.argv.slice(2)
    let hash = args[0]
    console.log('tx hash:', hash)
    console.log('provider:', process.env.WEB3_URL)

    let tx = await provider.getTransaction(hash)
    if (!tx) {
        console.log('tx not found')
    } else {
        let code = await provider.call(tx, tx.blockNumber)
        let reason = hex_to_ascii(code.substr(138))
        console.log('revert reason:', reason)
    }
 }

 reason()
diff --git a/revert-reason b/revert-reason
 #!/bin/bash

 # This is for geth

 # Fetching revert reason -- https://ethereum.stackexchange.com/questions/48383/how-to-receive-revert-reason-for-past-transactions

 if [ -z "$1" ]
 then
    echo "Usage: revert-reason <TX_HASH>"
    exit
 fi

 TX=$1
 SCRIPT=" tx = eth.getTransaction( \"$TX\" ); tx.data = tx.input; eth.call(tx, tx.blockNumber)"

 geth --exec "$SCRIPT" attach http://localhost:8545 | cut -d '"' -f 2 | cut -c139- | xxd -r -p
 echo
	// This is universal, works with Infura -- set provider accordingly

	const ethers = require('ethers')
	//const provider = ethers.getDefaultProvider('rinkeby')
	const provider = new ethers.providers.JsonRpcProvider(process.env.WEB3_URL)

	function hex_to_ascii(str1) {
	var hex = str1.toString();
	var str = '';
	for (var n = 0; n < hex.length; n += 2) {
	str += String.fromCharCode(parseInt(hex.substr(n, 2), 16));
	}
	return str;
	}

	async function reason() {
	var args = process.argv.slice(2)
	let hash = args[0]
	console.log('tx hash:', hash)
	console.log('provider:', process.env.WEB3_URL)

	let tx = await provider.getTransaction(hash)
	if (!tx) {
	console.log('tx not found')
	} else {
	let code = await provider.call(tx, tx.blockNumber)
	let reason = hex_to_ascii(code.substr(138))
	console.log('revert reason:', reason)
	}
	}

	reason()
	#!/bin/bash

	# This is for geth

	# Fetching revert reason -- https://ethereum.stackexchange.com/questions/48383/how-to-receive-revert-reason-for-past-transactions

	if [ -z "$1" ]
	then
	echo "Usage: revert-reason <TX_HASH>"
	exit
	fi

	TX=$1
	SCRIPT=" tx = eth.getTransaction( \"$TX\" ); tx.data = tx.input; eth.call(tx, tx.blockNumber)"

	geth --exec "$SCRIPT" attach http://localhost:8545 \| cut -d '"' -f 2 \| cut -c139- \| xxd -r -p
	echo