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Questions tagged [geth]

Go implementation of command line tools for Ethereum blockchain

Go implementation of command line tools will allow you to connect your server to or run your application on the Ethereum blockchain

Ethereum CLI: https://www.ethereum.org/cli

Github: https://github.com/ethereum/go-ethereum/wiki/geth

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Ethereum Keystore File Encrypted or Corrupted?

it seems that I accidentally deleted my Ethereum Keystore Directory. After the initial panic I ran a data recovery program which might have been able to recover the UTC--... file. Unfortunately, the account is not shown with geth account…
Kaleido
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geth sendTransaction not working

I have a geth server that I need to transfer some ethereum to other wallet. I studdied the wiki page of geth and found out there is a method called sendTransaction for this job. First: I used the following command to transfer money, the resault gave…
Jake Dragon
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Mounting a SSD disk in autoscaling group

I have a VM instance which has the following configuration and runs the geth blockchain on it. 20 GB HDD (boot disk) 500 GB SSD (chain data) The geth node works ok and is in sync. as expected. I want to put such instances behind a HTTP load…
kosta
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Ethereum geth check transactions with python

my questions is... I want to run a fullnode like geth to save transactions of my different eth addresses with python into a database. But I have no idea how to do that. Are there any special libraries or does geth have a Json interface? Thank you…
user10125003
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Install an earlier version of ethereum using apt-get on Ubuntu 18.04

How can we install an earlier version of the package ethereum when using Ubuntu 18.04? The currently installed version is 1.8.12 and I will like 1.8.8. # apt-cache policy ethereum ethereum: Installed: 1.8.12+build14270+bionic Candidate:…
Nyxynyx
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Geth + smart contract function = bad instruction

playing with ethereum smart contracts I encountered a following problem. The contract gets deployed on Ropsten and then I'm trying to call function 'addRecipe' with the following code on geth: recipes.addRecipe(300, "zupa", "zupa z trupa",…
Kamil Gorski
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Connecting two peers on different machines in a private network

I am using geth to create a Private blockchain in my system which is connected to my office network. I want to add another peer(different PC) to my blockchain network which is connected to the same network. How can I do that?? Any suggestions on,…
Pawan
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Ethereum wallet

I'm new to Ethereum and for learning purposes, I want to mine. The Ethereum wallet main network sync just finished but I can't see the button "start mining (shift+command+m)" (appears on the solo network) won't appear here. Why is that? what should…
Heron de alejandria
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How do I run this smart contract function using nethereum to return a result?

I followed a great article online to create a smart contract with CRUD operations. This is the function I can't get working: function getUserAtIndex(uint index) public constant returns(bytes32 userKey) { return userIndex[index]; …
S Stephenson
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How to avoid generating Ethereum DAG for tests?

I'm having integration tests with private Ethereum network running in Docker. Generating of DAG takes few minutes and at least 2 Gb (1Gb for epoch 0 and 1). I've set difficulty in custom genesis block 0x1 and it's still to much. I can run tests on…
4ntoine
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Memory issues while doing fast sync with Ethereum main net

I am trying to do a fast sync with the Ethereum main net using geth on my VM. I have 73 GB available in my diskspace, but everytime I try to sync it my disk is running out of space when more than 5000000 blocks are downloaded and only few blocks are…
Deb
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Unable to get value from another contract

I am facing a head scratching issue. I have created two contracts UserRole which has a map of username to a role and a Base contract that has a modifier which checks if the role is < 10. So I deploy the first UserRole contract first and then I…
shresthaal
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Massive Download [ETH] smart contracts

I'm looking for the most valid path to download and keep downloading every single smart contract on the ethereum network. As I've been programming for a few years, I've been thinking about using cURL to make this. But I'm aware this is probably very…
Chris Russo
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Greeter tutorial using Solc, geth and ethereum wallet

I'm trying to run a contract on a private local network so that I can develop and deploy a contract on the mainnet for some ERC20 token. Starting with the greeter tutorial, I compiled the default example as follow $ solc -o target_greeter --bin…
Adrien Lemaire
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In geth it possible to host a private network not on localhost?

I was wondering if it was possible to host a private network in geth not on the localhost. Would it be possible to connect to my private chain using a non-local ip address?
Cal W
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