How to resend transaction with the same nonce using python web3?
I'm getting error: known transaction once trying to initiate the transaction with the same nonce.
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Why do you want to send with the same nonce anyway?– always_betaAug 21, 2022 at 8:14
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@always_beta I want to replace tx– RiggAug 23, 2022 at 13:19
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nonce should increase no matter whether the transaction succeed or failed, if you haven't send the transaction, then just re-compose it and send, if you already sent the transaction, and it ended up with failure, you have to increase the nonce.– always_betaAug 24, 2022 at 2:55
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@Rigg you're only problem is that you need to increase the gas price (by at least 10%). The error is telling you that the nodes already have your tx in the mempool, so you don't need to send another identical one– 0xSansonAug 26, 2022 at 19:22
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1 Answer
You cannot use the same nonce twice, as per the definition of nonce:
In cryptography, a value that can only be used once. There are two types of nonce used in Ethereum- an account nonce is a transaction counter in each account, which is used to prevent replay attacks; a proof-of-work nonce is the random value in a block that was used to satisfy the proof-of-work.
From ethereum.org
