Questions tagged [pending-transactions]

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1 answer
31 views

Broadcasting a transaction to be included in the next block

Since the merge we have predictable block times of around 12-13 seconds. I want to broadcast my transaction in a way that it is highly likely to get included in the next mined block, e.g. the block ...
0 votes
1 answer
16 views

Transaction on etherscan vanished

Anyway i saw my transaction of eth on etherscan, thought looking good. so put laptop away for 10 minutes and waited for it to clear into my Metamask. After just 10 a 20 minutes went back and saw that ...
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1 vote
0 answers
13 views

How to evaluate pending transactions which will be executed

When subscribing to the Ethereum mempool I receive all transactions that are pending within the network. I would like to understand how I would be able to evaluate whether a transaction will be mined, ...
0 votes
1 answer
39 views

Faced a problem whiling getting Ethereum transactions which are in mempool

I am trying to get mempool transactions ASAP. My purpose is to get the pending transactions on Uniswapv2 router before the transaction is confirmed. I tried several providers from Quicknode, Alchemy, ...
0 votes
0 answers
9 views

pending transaction doesnt exist on bsc fullnode

I am trying to get pending transactions via the full node in the binance smart chain. My command to run geth is : ./geth --config ./config.toml --datadir ./node --cache 18000 --rpc.allow-...
1 vote
1 answer
26 views

Wait for incoming ethereum transactions and credit them after n confirmations

I'm trying to create a website where users can deposit ethereum. For my server I'm using node.js and express.js. I looked into web3.js but the docs are unclear to me and I don't know which functions ...
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0 votes
1 answer
29 views

Which transaction will be prioritised: send or send by approved

Let’s say my address is X and I have 10 USDT there. Address Y is approved spender of wallet X USDT funds, meaning that address Y can send USDT from address X. Address Z and W are some other addresses. ...
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0 votes
0 answers
17 views

Are 'suspended' transactions even possible?

newbie here, toying with the idea of some gambling game, nft-based. Suppose I want users to gamble on their own NFTs. Obviously I want the actual transaction to occur only if the player loses. I guess ...
0 votes
1 answer
28 views

Can Uniswap swapExactETHForTokens amountOutMin function accept 0?

Here is a result I received from scraping pending ETH transactions: Transaction hash: 0x9e0e02546b56a7ae81803627d0e4124171970d7a1c2da4b2c68022aedd9da6c4 {"method":"swapExactETHForTokens&...
0 votes
0 answers
76 views

Get pending transaction in Golang?

I know how to get pending transaction, from Mempool that is, in JS/NodeJs. I want to do the same thing in Golang, though. How to do it? I haven't found any example.
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1 vote
1 answer
56 views

Making sense of a decoded transaction on Uniswap V2/3

I've subscribed to pending transactions of Uniswap V2 and V3 and am inspecting them, by decoding input of the transactions. I'm getting data as follows: //1 data: { method: 'swapExactETHForTokens', ...
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1 vote
1 answer
67 views

function call gives me "pending.."

I have a problem with a function in a lottery contract. given that library for pseudorandom: library Random { /* * @dev startingValue is inclusive, endingValue is inclusive * naive implementation! ...
0 votes
0 answers
30 views

How to exctract/quiery information about "amounts" in pending tx which is sent to Uniswap?

I have a simple JS script. I'm looking at the pending transactions in the Mempool, and only at the ones which are sent to Uniswap router. Namely, each of them has tx.to == $UniswapRouterAddr How can I ...
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0 votes
0 answers
17 views

Lost transactions on private chain (geth)

I had a private chain forked from geth 1.10 with minor changes. It has been running for 2 years now. But now suddenly I am seeing lots of lots transactions (like 40 in 500 getting confirmed). I can ...
0 votes
1 answer
11 views

How can a miner pack more transaction in one block?

Other than lowering the gas price and increase the gas limit, is there any simple configuration change to ensure the miner increase as many transactions as possible until the block is almost full?
2 votes
1 answer
50 views

Transaction on Uniswap -- how to find out what pair is being swapped (via web3.js)?

Given a transaction on Uniswap, how to find out what pair is being swapped, and the amount of it? Namely, via web3.js/ethers.js Is there relevant and sufficient information in the fields of a ...
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0 votes
0 answers
16 views

What's "Transaction Action"? Is there a way to query it via web3.js/ethers.js?

What's "Transaction Action"? Is there a way to query it? Especially for a pending tx.
1 vote
1 answer
108 views

In Mempool, how to identify whether it's a "buy" or "sell" tx on Uniswap?

When looking at the pending transactions, in Mempool that is, and the ones that have to do with Uniswap (to == Uniswap router address), how can it be identified whether a certain tx is a "buy&...
0 votes
1 answer
109 views

How long before transaction is removed from the Mempool

So I have a transaction T1 that has been stuck in pending because I put the gas really low. I forgot about this and then tried to process two transactions after with $126 gas fee and $111 gas fee. I ...
1 vote
2 answers
142 views

How to simulate a transaction before sending it

Miners will include the transactions into block and those will change the state of a lot of variables including the balances of accounts. I wanted to do it in my local node before sending transaction! ...
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0 votes
0 answers
56 views

pendingTransactions not working properly on BSC

Using Web3.js to subscribe pendingTransactions events from local go-ethereum nodes, works correctly on Ethereum and Polygon, but not so on BSC. web3.eth.subscribe('pendingTransactions', (error, header)...
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0 votes
0 answers
161 views

Get details of pending transaction using tx hash

I'm trying to get the details of pending transaction using it's txhash. I tried using web3.eth.getTransaction(transactionHash) but it seems like it returns null for pending transactions but works fine ...
0 votes
0 answers
95 views

"subscription queue overflow" Error after a few minutes of being subscribed to newPendingTransactions

I'm fairly new to both Go and GETH. I've been trying to get a simple pending transaction watcher going and it works okay for a few minutes but after that, it gets stuck and I get hit with a ...
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0 votes
1 answer
38 views

Is it possible to check when a transaction has been sent?

Is it? I don't mean the date-time of the 1 confirmation, but when a person has actually submitted a transaction to the blockchain or rather the transaction pool? Or is it the case that the date-time ...
0 votes
0 answers
49 views

Concurrent send of transaction from single address

I am trying to figure out what the throughput is of sending multiple streams of transactions from a single wallet address. Assuming that that nonce management is properly configured how many ...
0 votes
1 answer
102 views

Speed up Frontrun Bot

I've made a frontrun bot for the Binance Smart Chain. It's working fine, but just for 50% of all transactions.. In the other 50% the is missing the transaction by 1 block.. Example is below My ...
0 votes
1 answer
177 views

How to make Frontrun bot faster

Do you have any tips? I want to make sure, that my transaction will be placed in the block of the transaction to frontrun
0 votes
0 answers
808 views

How can I get pending transaction of contract address using web3.py?

I want to get pending transaction of a contract address, I have tried many ways but didn't work method 1: this seems to be good at sorting pending transaction but I can't get any transaction from my ...
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0 votes
1 answer
24 views

Does the age/timestamp of a transaction matter to a miner?

Up to now I know that miners choose transactions to be included in a block only based on their related transaction fees. Does the age (i.e. timestamp) of a transaction play any role in the priority ...
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0 votes
0 answers
101 views

Massive delay on pending transactions

Having my own geth node, I am trying to monitor the txpool with web3.eth.filter('pending') from web3py. It seems to work fine since I am getting about 95% of the transactions that are included in the ...
  • 1
0 votes
1 answer
293 views

How to find a Pending txn with a lower account nonce

For example I have this transaction https://etherscan.io/tx/0xe76ff4f05f32f077098f671c362a32b0650a9d1d12aaa8069fa39e0726c1ecf4 which is pending because there are lower nonce transactions which were ...
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2 votes
2 answers
1k views

Error "replacement transaction underpriced" using Nonce method of cancelling transaction

I have a pending transaction that is not going through because of low gas price. I tried sending a new transaction with the same 57 nonce (https://etherscan.io/tx/...
0 votes
0 answers
192 views

Decode pending transaction input into map

I'm attempting to decode a transaction input into a map, the input contains uint256 which are translated to bigint but the output value I get is incorrect. I use this function to decode the input data ...
1 vote
0 answers
51 views

Unable to clear pending transaction on current Nonce by increasing fees

I have a pending transaction from 1 week ago, I tried every step to clear it that I can find online. I know which nonce it is, and I doubled and tripled the gas limit and fees, but it still won't ...
0 votes
0 answers
317 views

Why do my ethers.js transactions keep pending/dropping on polygon even with a lot of gas added?

I'm trying to automate sending transactions through ethers.js. It works all perfectly on Rinkeby, but then on Polygon the transactions stay pending for days even when adding much more gas than ...
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1 vote
2 answers
89 views

What is the relationship between block time and the time I send a transaction?

As I understand, the average block time is 16 seconds, and it ranges from 10-30 seconds. Does that imply that each individual transaction on the current block was sent no longer than 30 seconds ago? (...
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0 votes
0 answers
84 views

What would cause a pending Ethereum tx to not show up on Etherscan?

I am using the Web3 2.0 library to call web3.eth.sendTransaction and send Ether from one address to another. When I check the nonce of my wallet in my program using the following web3 functions, it ...
0 votes
0 answers
14 views

How do I cancel pending transactions? [duplicate]

On 12/14/21, there was that glitch that showed everyone as billonares with saitama...etc. I thought I'd try transferring some money of course, and now the transactions are just stuck. According to ...
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0 votes
0 answers
118 views

How to track transaction by token address with web3.py?

I'm just starting explore web3 and I wanna track transaction by token address with web3.py. Is this possible?
0 votes
0 answers
36 views

When a user is able to change a transaction before the confirmation?

I've noticed that there is a possibility to change a sent transaction before confirmation. For example, when I send a transaction, after 100ms I send a second similar transaction with the same nonce ...
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1 vote
0 answers
186 views

EIP 1559 signed transaction stuck, now can't do anything on metamask either

contract_txn = weth_contract.functions.redeem(address, True).buildTransaction({ 'type': '0x2', 'chainId': 43114, ...
2 votes
0 answers
364 views

Getting a pending transaction without its hash

With web3py, when I do a = w3.eth.get_transaction_count(address) b = w3.eth.get_transaction_count(address, block_identifier='pending') I consistently have a = 100 and b = 101, say (the pending ...
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0 votes
1 answer
67 views

Make a pending transaction to Rinkeby

What would be a simple way to generate a transaction that remains pending for a while (on Rinkeby)? I tried sending to self, adjusting the gas price but that is either confirmed quickly or doesn't ...
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0 votes
0 answers
9 views

I have a completed transaction that when I open the dash never was completed and it never went through since 11/11/21 IT SAYS DROPPED TRANSACTION?

I have a completed, succeed, transaction that when I open the dash it says dropped?
0 votes
0 answers
42 views

Why doesn't `eth.get_block('pending')` contain my pending transaction?

As a test I sent a transaction with a too low fee per gas from my geth node. I can see the pending transaction in etherscan.io's pending pool, my geth node includes it in eth.get_transaction_count(...
0 votes
0 answers
69 views

Pending transactions remain pending forever?

I have a pending transaction stucked for more than 24 hours. I have receive advice on how to cancel it already so please do not answer me that advice again. Because it hasn't worked for me. Now my ...
1 vote
1 answer
52 views

Pending transactions got cancelled after wating enough time or they keep pending forever?

There are solutions out there to cancel a pending transaction, for example sending another transaction with the same nonce to substitute it. Also paying more gas to accelerate it or even pay to cancel....
0 votes
0 answers
463 views

Streaming Contract pending transactions using ethers?

Trying to setup interaction with a contract to stream pending transactions but I don't see how to do so for a specific contract or address. Ethers js documentation shows how to pull all pending tx (...
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0 votes
0 answers
143 views

Geth receiving pending transactions without full sync

I would like to continue to solve this problem here: How to configure Geth for accepting future transactions without full sync? For statistical purposes I will need to remove the validation process. ...
1 vote
0 answers
64 views

What factors exactly affect the speed, depth and range of scanning the mempool?

There is zero quality information available on that topic anywhere, for obvious reasons. If there is however somebody willing to share, whether from experience or purely technical understanding of all ...
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