go-ethereum | Official Go implementation of the Ethereum protocol | Blockchain library
kandi X-RAY | go-ethereum Summary
kandi X-RAY | go-ethereum Summary
Official Golang implementation of the Ethereum protocol. Automated builds are available for stable releases and the unstable master branch. Binary archives are published at
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go-ethereum Key Features
go-ethereum Examples and Code Snippets
geth --datadir ~/etherprivate/ --networkid 786 --http --http.api 'web3,eth,net,debug,personal' --http.corsdomain '*'
geth attach http://localhost:8545
eth.syncing
geth --rinkeby --verbosity 3 --syncmode fast --ipcdisable --ws --wsapi "db,eth,net,web3,personal,txpool,admin" --wsorigins '*'
const Web3 = require("web3");
const web3 = new Web3(new Web3.providers.HttpProvider("http://localhost:8545")); // Geth RPC is working.
...
const password = "test1234";
web3.eth.personal.newAccount(password)
.then
{
"config": {
"chainId": 2018,
"homesteadBlock": 0,
"eip155Block": 0,
"eip158Block": 0
},
"alloc" : {},
"coinbase" : "0x0000000000000000000000000000000000000000",
"difficulty" : "0x400",
"extraData" : "
Document //provide the location of web3 file
Given below Ethereum address
geth --rpc --rpcaddr "0.0.0.0" --rpcport 8545 --nodiscover
$ iptables -A INPUT -p tcp --dport [rpc port] -s [ip who is using your node] -j ACCEPT
$ geth --rpcapi personal,web3,eth --mine --minerthreads 2 --rpccorsdomain ['ip who is using your node:port'] --rpc --networkid
geth attach ipc:\\.\pipe\geth.ipc
FROM amd64/ubuntu:xenial-20180726
ARG GETH_REPO="https://github.com/ethereum/go-ethereum"
ARG GETH_VERSION="v1.8.12"
RUN git clone ${GETH_REPO} && \
cd go-ethereum && \
git fetch origin ${GETH_VERSION} &a
Community Discussions
Trending Discussions on go-ethereum
QUESTION
How does one check the number of "block confirmations" for a given transaction?
I tried checking the transaction hash in block heights of +1, +2, etc. but they don't contain the transaction ID.
Would I instead need to wait for future blocks to be mined, and the transaction status to still be considered valid? the Receipt.Status.
...ANSWER
Answered 2022-Mar-20 at 13:48After lots of research, I can say that it is the number of blocks that have been mined after the block your transaction was included in, and your transaction is still considered valid. So to check block confirmations, you would check whether the transaction is still valid, and see how many more blocks above the transaction block height have been mined.
Therefore, if your transaction has 13 block confirmations (see above graphic), then there have been 12 blocks mined since the block was mined that included your transaction.
QUESTION
Followed the Fulfilling Requests documentation on Chainlink, and got the following error. Image: Chainlink Operator Overview
Chainlink CLI - [DEBUG]:
...ANSWER
Answered 2022-Mar-19 at 06:08I recreated (DROP -> CREATE) the PostgreSQL database because prior to adding a new chain within chainlink, it was initially configured to another chain/network id, which seemingly threw these errors.
QUESTION
I am trying to understand in what language this file is written in? I would like to know but here authors did not specify the language.
https://github.com/status-im/status-react/blob/develop/nix/status-go/default.nix
...ANSWER
Answered 2022-Mar-01 at 09:02QUESTION
The following code snippet is a constituent piece of the instructions.go file in geth.
...ANSWER
Answered 2022-Jan-29 at 14:14The LOG
opcodes are used for emitting event logs.
The value depends on the number of indexed and non-indexed topics of the event. Since the
value is limited (currently at 4), there's also a limit of max indexed topics per each event definition (currently 3, so it's possible to process unindexed topics of the same event as well).
Example in Solidity:
QUESTION
I am trying to create a raw transaction in go-ethereum and found some tutorial code that I was tinkering with. The error is:
...ANSWER
Answered 2022-Jan-18 at 20:56Not sure when it was removed, but the code previously was
QUESTION
I have a local testnet (represented by this Docker image) and I am trying to send some ERC20 tokens from one address to another.
I use the following HardHat script for this:
...ANSWER
Answered 2022-Jan-16 at 16:33This is a dirty hack that seems to work.
First, add a method to the contract which transfers funds without changing the allowance:
QUESTION
When ever I try to deploy my smart contract to test, I receive an error indicating "transaction type not supported". Below is the source code. I'm trying to deploy my simple smart contract using abigen's Go bindings.
Versions:
go1.16.7
Solidity 0.8.9+commit.e5eed63a.Darwin.appleclang
Solidity Source code. I've tested this in Remix and it has worked everytime:
...ANSWER
Answered 2021-Nov-12 at 21:26This was stupid.
Geth updated their code and there weren't any tutorials so for anyone hoping to run a simulated background here's the answer:
You have to set the gas price manually. Taking this on after defining client and auth fixes it.
QUESTION
i ve been trying to learn stuff about smart contracts lately, but when i tried to understand how a token transfer works i ve encountered this problem. || execution reverted: ERC20: transfer from the zero address || (ropsten network)
the code:
...ANSWER
Answered 2021-Nov-05 at 06:02Apparently, the problem was with the gasLimit
. I changed the gasLimit
to:
QUESTION
How to call RPC endpoints using ethclient.Client
( https://github.com/ethereum/go-ethereum )?
Some methods don't have wrappers, and, as far as i can see, calling it directly is impossible e.g.
...ANSWER
Answered 2021-Nov-03 at 18:38The ethclient.Dial
function (which you mentioned) uses the rpc.DialContext function underneath, and the package also provides an ethclient.NewClient function to create a new ethclient.Client
with an existing rpc connection.
A possible solution could be to create a new rpc connection, then pass it to the ethclient.Client
, so you're using one connection, but can use the RPC connection itself and the eth client as well.
Something like this:
QUESTION
I am attempting to generate a personal_sign
in Golang like its implemented in ethers.js. Similar question but that ended up using the regular sign
over the personal sign_implementation
.
Ethers
...ANSWER
Answered 2021-Oct-29 at 14:59There is a bug in the JavaScript code.
From the documentation of signer.signMessage()
(see the Note section), it appears that a string is UTF8 encoded and binary data must be passed as TypedArray
or Array
.
The Keccak hash is returned hex encoded, i.e. as string, and is therefore UTF8 encoded, which is incorrect. Instead, it must be converted to a TypedArray
. For this purpose the library provides the function ethers.utils.arrayify()
.
The following JavaScript is based on the posted code, but performs the required hex decoding:
Community Discussions, Code Snippets contain sources that include Stack Exchange Network
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