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Results tagged with go-ethereum
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user 9938
Go Ethereum (short: Geth) is a Golang implementation of the Ethereum protocol.
2
votes
Geth not syncing on testnet
Try to run
geth --testnet --syncmode "fast" --cache=1024 console
and then in console:
admin.addPeer('enode://6ce05930c72abc632c58e2e4324f7c7ea478cec0ed4fa2528982cf34483094e9cbc9216e7aa34969124257 …
- 3,177
1
vote
Does geth compress blockchain?
There are three types of syncronization:
Full Sync: Gets the block headers, the block bodies, and validates
every element from genesis block.
Fast Sync: Gets the block headers, the block bodies, it …
- 3,177
2
votes
Accepted
Web3.py EventFilter.get_new_entries() always empty
If I change it to event_filter.get_all_entries() I can see all the
transactions. But get_new_entries() doesn't work. Any idea what would
be the issue?
As I can see from web3.py latest documen …
- 3,177
2
votes
Automate mining based on a trigger in Geth
Add --preload "mine_on_demand.js" to your geth command. Add this js file to the folder where the geth is located.
mine_on_demand.js:
function checkWork() {
if (eth.getBlock("pending").transactio …
- 3,177
0
votes
Accepted
can i access latest blocks data with geth --fast --rpc?
You will have an access to the latest 1024 blocks like in a Full sync.
- 3,177
1
vote
How to know when geth --rpc is finished so i can start mining
As far as I know you don't need geth for ethminer at all.
The ethminer is a command line program. This means you launch it
either from a Windows command prompt or Linux console, or create
shor …
- 3,177
0
votes
How to add a wallet to your geth account list
Try importing a keystore file with this command:
geth account import <keyfile>
You should have it from the registration of new wallet.
- 3,177
5
votes
Accepted
Bootstrapping Geth on Ropsten Testnet with Known Nodes
I think you are looking for something like this.
geth --testnet --fast --bootnodes "enode://20c9ad97c081d63397d7b685a412227a40e23c8bdc6688c6f37e97cfbc22d2b4d1db1510d8f61e6a8866ad7f0e17c02b14182d37ea7 …
- 3,177
0
votes
minimum and maximum block time
TL;DR First, you set difficulty in genesis. Then, you calculate difficulty when you init your block from parent.
P.S: I highly suggest ctrl+F difficulty
1. Set difficulty in genesis
def genesis(env …
- 3,177
4
votes
Accepted
find first transactions to a contract
You can use Etherscan API which gives you ability to list all of the transactions for a specific range of blocks (you can set custom startblock/endblock)
https://api.etherscan.io/api?module=account&a …
- 3,177
1
vote
web3 contract TypeError: 'apply' is not a function
This should work:
var myContract = web3.eth.contract(abi);
var myContractInstance = myContract.at("0xcbbfbafedb0eb83016d2a96a4e80d30b20fa3e30");
var result = myContractInstance.apply("4183f3a48d9 …
- 3,177
0
votes
Error when trying to create new Solidity contract using Geth
If your error is in geth, then I can recommend you to read this article about Deploying A Smart Contract. Be sure to set your private chain correct, to have account, to have balance >0, to unlockAccou …
- 3,177
2
votes
I want to setup an Ethereum Trading website. How should I handle the ETH network transaction...
You should make a set of rules for your users. If you are not going to pay fees by yourself, just add the line to user agreement about possible transaction fees. And be sure to specify the range of tr …
- 3,177
2
votes
How to simulate the DAO attack with Truffle and testRPC
Create your contract DAOHack.sol and save it in contracts
folder.
Create 2_deploy.js migration file and store it in migrations folder.
Specify network parameters in truffle.js.
Compile contracts by r …
- 3,177