Questions tagged [go-ethereum]

Go Ethereum (short: Geth) is a Golang implementation of the Ethereum protocol.

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How to fork Ethereum?

I want to fork Ethereum in go(maybe in another language) with my own implementation. Anyone can guide me about that?? Is there any relevant resources. I want to fork it as whole with some changings. ...
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GETH Proper Way of Setting --ws.origins

My application and GETH sits on the same server. I only want GETH to accept WS connection on the same server. What is the proper way of setting --ws.origins ? Historically I just used --ws.origins *...
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GETH + web3.js Max Transaction Fee

There is a built-in default max transaction fee of 1 ETH with my GETH node + web3.js library. Where can I change that? I cannot find the option anywhere...
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GETH node maxpeers performance and benefit

I'm trying to optimize my node for transaction propagation speed. Expanding on this question: Can we improve the performance of Geth server by setting maxpeers to 0? Are there any data available ...
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What sniper bots works on Uniswap? [closed]

What are good sniper bots available for Uniswap? I need one to buy the first entry tokens.
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TX recieved from subscribtion but not in Tx pool

I am running local Geth and I subscribe to pending transactions like this : const subscription = web3.eth.subscribe('pendingTransactions', (err, res) => { if (err) console.error(err); }); ...
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Cannot acces Quorum IBFT remote node

I managed to setup Quorum IBFT nodes on my MacOS. So far it works - deploying smart contracts, submitting transactions and etc using Metamask using RPC URL localhost:22000- as expected on the local ...
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differences in terms of api supported by full node vs light node

Are there any differences on the API supported by full node vs light node in Ethereum?
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go-ethereum change source code

I am trying to change source code in go-ethereum so that I can learn how it works. Let's say in flags.go file, there's log.Info("Set global gas cap", "cap", cfg.RPCGasCap), so I ...
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MetaMask Web3.js Injection

I have started to received this error today. MetaMask no longer injects web3. I understand the reason, and from my reading, I can continue to use the web3.js API, although it is no longer injected ...
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What kind of node use for Ethereum development?

I am working with ethereum and to connect my backend to the blockchain I use an ethereum node: full node or a light node. I was asked a question but I didn't quite understand how to answer. The ...
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In a dapp application who listens to events?

In a dapp application who listens to events? the geth node or my node.js component (backend component? How can I implement the listen function in web3.js?
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Geth vs OpenEthereum full node size

I am deciding whether to start a full node, so I researched the storage size I need for hosting it. https://etherscan.io/chartsync/chaindefault shows the size of an Ethereum full node on Geth and on ...
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Why my Eth balance not appear in wallet but only in contract adresst [closed]

I got hundred thousand eth balance but only in etherscan. I dont know what going on. Every hours there are some in and out transaction. The problems is why its only show in etherscan but not in my ...
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Which component sends a transaction and which component subscribes to an event?

I am working on an ethereum project but I have some doubts. I have a backend that connects to the blockchain via web3.js. To connect to the blockchain I use a geth node. I understand that the sequence ...
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Ethereum miner does not produce blocks

first time Mining! Watching a YouTube Tutorial about Blockchain basics and it shows how to set up a Genesis Block as well as how to start Mining. I've followed all the steps to the best of my ...
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web3.eth.accounts[0] undefined

I am new and I am trying to make my first transaction using geth and truffle. to specify a sender address I type in the truffle console: src = web3.eth.accounts[0] but I get "undefined" if I ...
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Not installed Ethereum wallet

When installing the wallet, an error pops up Checksam mismathg in downoalded node MD5 e05524cc4f6e8711645f40ef5921918a Please install the Geth node version 1.8.23 manually Please help.
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Light, fast or full syncing for solo mining Ethereum? [duplicate]

I would like to try my luck to solo-mine some ETH. Full syncing is out of range, regarding downloadtime and diskspace. So, that´s the question: Is it enoght to light syncing for solo-mining?
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What happens when you send a non-state-changing transaction to the transaction pool

I understand that there are 2 endpoints for smart contracts. Call() for running view/pure function and SendTransaction() for state-changing transactions. Obviously a state-changing transaction sent to ...
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GETH has only few peers

I start my geth node with the command: geth --syncmode="light" --cache=4096 --http --http.port 8545 --http.corsdomain "*" --http.addr "0.0.0.0" --http.api "eth,web3,...
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Are there any good ethereum developer forums out there?

I'm trying to learn and have been trying to figure out some things that are probably pretty simple and was hoping to find a forum to ask some questions but haven't been able to find one. If anyone ...
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Can't connect to GETH node on the network

I run a light node on a windows 10 machine on my network with the command: geth --syncmode="light" --cache=4096 -http --http.port 8545 --http.corsdomain "*" -http.api "eth,...
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Is geth / parity an on-chain or off-chain node?

I am drawing the architecture of a dapp but I cannot understand if the node (geth / parity) is in the on-chain or in the off-chain part.
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Pros and cons of Parity, geth, infura

what are the pros and cons of each of these ethereum clients: geth, parity, infura? I want to compare them from a theoretical point of view
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Solidity contract: How to deal with return parameters in solidity

i am having an issue with an function I would like to call. Following case: The function looks like this: Params Type token0 IERC20 token1 IERC20 amount uint256 parts uint256 flags uint256 and ...
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Unable to see Rinkeby balance in Geth console

I set up a node on the Rinkeby test network and connect to it with the following command. geth --rinkeby Once this is up and running, I connect to the corresponding console with geth --rinkeby attach ...
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Uniswap fork: remove liquidity error

I am trying to fork uniswap. And I have a problem when liquidity is removed. Problem in UniswapERC20. I don't know what's wrong. Step by step (repeatedly for Rinkeby and Ropsten): Copy Uniswap ...
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How to make geth node as a service?

I managed to setup Ethereum private network (using clique, Quorum's RAFT and IBFT) and managed to connect them to my own DApp via metamask. Now I am wondering, how to make the network that I just ...
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“Getting AGE/TIMESTAMP of a Pending Transaction from a Transaction Checker”

Can I get TIMESTAMP of a pending transaction as soon as it's added to etherscan.io recent transactions list? I'm using GETH and WEB3 for a transaction checker and it's fetching me recent pending ...
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ROPSTEN: Duplicate Blocks adding transactions using Geth Real-Time Event API

I'm using the Geth Real-Time Event to get the new blocks via web-socket and there's a subscription called "newHeads" for that propose. The thing is sometimes the socket returns a duplicate ...
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Solidity - Proper way to Import Contracts

When importing one Solidity contract into another, what’s the difference between importing it and accessing it using the is keyword, vs. importing it and just instantiating an object of it? Here’s ...
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Fork Ethereum (geth source code)

I wanted to Fork geth source code to create my own currency like ethereum but changing the currency name. I want it to be able to carry smart contracts also that's why I am not forking bitcoin. Is ...
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Token not visible under “Tokens” on Etherscan

I have deployed an erc20 token contract to rinkeby, ropsten using truffle. Each time the contract is deployed properly. However, the token details are not visible under 'tokens' in etherscan. Please ...
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What are the different space requirements for running an Ethereum node?

I am trying to run an Ethereum testnet node in the Ropsten testnet and currently trying to figure out, what the requirements are for the disk space needed. While this is (obviously) different for the ...
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Can I recover the ETH wallet I created using Geth after reinstalling Windows?

I installed Geth and ran some mining activities, using the nanopool network. When I built the wallet I mined with, I followed the directions here: https://geth.ethereum.org/docs/interface/managing-...
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What were the password requirements for creating an account on Ethereum wallet?

Trying to migrate a wallet over to MyCrypto app from the Ethereum Wallet app (the one that used gest and that is on the same download page as mist). Can't remember password. Would help if I knew the ...
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Extract all blocks data from etherchain into a csv file

i want to extract data from etherscan into a csv file or format. wanted to extract all blocks mined yet and transactions done till yet
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Is light mode client able to serve JSON-RPCs?

Can Geth sync in light mode server JSON-RPC queries from DApps? I know light nodes only store block headers but will it forward the JSON-RPC to other peers to get it served?
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Fatal: Failed to read genesis file: open genesis.json: permission denied

I try to init private network and run this command: geth init genesis.json --datadir=ethdata/ Also, I try to run the same with sudo sudo geth init genesis.json --datadir=ethdata/ But the result is no ...
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Struggling trying to migrate from Ethereum wallet to

Ok here is my sitation. I have some ETH that was stored on an old laptop. I have not run the wallet application for well over a year on the old laptop but I do have a backup of the keystore on my ...
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What s the official gui developped by the Ethereum fundation? Does it allows to display erc20 tokens?

After losing access to my email address, I am asked by an exchange to show the deposit history for a specific coin (in that case an erc20 running on Ethereum) from a specific address (which I own the ...
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Why is geth not synced after over a month?

I've been trying to sync geth for a month and it still has not caught up. Why? $ geth version Geth Version: 1.9.24-stable Git Commit: cc05b050df5f88e80bb26aaf6d2f339c49c2d702 Architecture: amd64 ...
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Force geth to continue using fast sync

My Ethereum node was fast synced one year ago and then ran for 10 months, before that computer was shut down. I have turned on that computer and I want to continue catching up, but Geth keeps ...
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How can I do it Erc20 Token Address Subscription

API listening to the transaction at the router address in the code below In addition, can I add the any token address on this router address for subscription? wss.on('connection', function connection(...
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Miner address getting chnaged automatically on ethereum private blockchain

I have a private ethereum node running on aws instance, the time when started the node i set the etherbase/coinbase address to the first account of the node. As i started the node i find that first ...
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How to remove/increase execution timeout of the geth's evm?

I am performing some benchmarking with the Ethereum Virtual Machine. I have a contract with just one function that calculates the prime numbers until 100k. However, I am not able to get my results as ...
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Using Geth debug_traceTransaction API

I am using debug_traceTransaction API from Geth node. (ropsten testnet) It works well but sometimes the response gives me {code=-32000, message=transaction ...
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Failed to unlock account *account number* (no key for given address or file)

I've been at this for hours, I can't figure out what to do. So some years ago I created an ethereum address using geth. Between then and now, my PC was swiped due to some software problems, and now I'...
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How can i get contract data from certain block [closed]

I need to get some data from an smart contract, but i want to generate something like history How can i get that data until some block or maybe be able to replay the blocks somehow? Im using python ...

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