New answers tagged go-ethereum
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Can I expose geth's rpc ONLY to Metamask connections?
When you set rpcaddr set to 0.0.0.0, it means everyone can access it if they know your node's IP address. You have these options:
If MetaMask and your node are on the same machine, just set the ...
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0
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TypeError: No matching declaration found after argument-dependent lookup
Looks like you may have had some formatting issues when posting your question.
Regardless of that the Error you're seeing is because the first argument in your call to require needs to evaluate to a ...
- 101
0
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network error trying to deploy js file using ganache on windows 10 wsl (ubuntu)
Activate your Ganache, and navigate to "contract"...scroll-down and click-on "link truffle projects , accept the allow your system to have access to Ganache on the pop-up and afterward ...
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What address(0) stands for?
Typically, address(0) indicates an unknown/anonymous address where you would send to burn the tokens.
0
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E/Go: fatal error: thread exhaustion
I see three different possibilities here:
that the most likely cause is that you are not running a light
client and therefore are not able to sync with the main net. Try
running a light client ...
0
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Max addresses that can be cleared from an array before breaking gas
Depending on how the addresses are included within the smart contract, you could call delete on them. If they are included within an array, that could be significantly cheaper.
- 36
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Error "Snapshot extension registration failed" when connecting nodes
I meet this error on the first node (bootnode) too. It seems to result from the private network's bootnode trying to connecting to the nodes in its default bootnode list. Nodes can be correctly ...
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how to call a rest api into smart caontract
Blockchains can't interact with the outside world, as they are intentionally isolated and deterministic by nature, which means they cannot make API calls generate random numbers, or for any reason ...
0
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How to attach ethereum mainnet using geth attach?
Thanks!
I have tested it successful! The command is ：
geth --datadir "d:\Project\lightnode" --syncmode "light" --allow-insecure-unlock --http --http.addr 0.0.0.0 console
Then I ...
- 435
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Latest remix version is not detecting metamask
Try to clear cookies of your browser and then start remix. before that backup your all files of remix. Maybe this could help
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Accepted
How to obtain full token address from uniswap/PCS router transactions (*types.Transaction)
Stupidly simple answer actually, the abi unpack method is just looking in the wrong position by 4 bytes to the left, addresses can be obtained by calling the method on txn.Data()[4:] or by manually ...
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How to generate Private key, public key and address
Best way to generate 12/24 words of seed phrase or Ethereum private and public address key Use this tool - Seed phrases Generator
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0
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Latest remix version is not detecting metamask
this is working on my end right now, but I had similar issues in the past and I was unblocked by using their alpha version : https://remix-alpha.ethereum.org/ . Maybe that can help ;)
- 49
0
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Lost my Private key but ı have keystore
I am not completely clear on the initial direction of the question (convert to v3) however I did find this post on what seems to be a very similar issue with geth account import key file issue (from ...
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0
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Cannot Compile Golang programs Using the Go-Ethereum package
On closer inspection, the issue is caused by breaking changes to github.com/deckarep/golang-set v2.1.0 module dependency, works fine on previous v1.7.1.
To fix, simply download the source code for ...
- 1
0
votes
Accepted
How gas fee to Mint an NFT are really calculated on Ethereum
This is what appears if your transaction is expected to fail.
Metamask simulates each transaction before you can send it in order to estimate the gas it will use. If the transaction would revert (and ...
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0
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What is the number of last ethereum private key?
Ethereum uses de secp256k1 elliptic curve.
Defining an elliptic curve requires several parameters one of them is G, a point in the elliptic curve, n the order of G the elliptic curve. They are define ...
- 29.1k
-1
votes
What is the Private Key?
If you compare the private key and public key concept with web2 space, then think of like your Gmail account, your Gmail address is your public key, which you can share with anyone so that anyone can ...
2
votes
Accepted
Start node automatically on Windows restart
you could set up the tasks in the Windows Task Scheduler GUI
server start
Begin the task : At startup (might want to build in a bit of a delay)
service goes down
Begin the task : On an event, Log: ...
- 194
0
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Mınt Gas Fee Problem
There's nothing you can do. It depends how busy the network is and when lots of NFT drops happen at the same time it gas gets expensive. Assuming you're on Ethereum mainnet.
Whether your contract ...
- 194
0
votes
Accepted
I can't figure out the reason for this error
On a clique (proof-of-authority) network that error might occur when the sealer nodes are not up. Remember that in a proof-of-authority network the 51% of sealers must be up and running and (of course)...
- 157
0
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Get raw transaction from hash
You can do it this way in Python:
import web3
from eth_account._utils.legacy_transactions import (
encode_transaction,
serializable_unsigned_transaction_from_dict,
)
w3 = web3.Web3(web3....
1
vote
how to find the creation block_number for a given contract_address using web3.py?
In ethers.js, you just need to be able to get the transaction hash value, you can get the result by the following code
const result = await provider.getTransactionReceipt(txHash)
The result should be ...
0
votes
Get Max Priority Fee (miner tip) from transactions in transaction pool (mempool)
Just a reminder, not every transaction is type-2(EIP 1559) yet. So it might be the reason you do not see any.
The EIP 1559 is backward compatible, meaning that old legacy transactions still go through!...
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How to decode input field from transaction in Golang?
I share a Parse Transcation Gists.
Include decode input data and output data, It may help you.
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2
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How to attach ethereum mainnet using geth attach?
You can install GETH ethereum node in your machine and run the geth sync command without specifying testnet. it will automatically sync mainnet data and provide you the RPC URL and you'll connect and ...
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1
vote
How to attach ethereum mainnet using geth attach?
If your question is if there are any other node providers then yes:
Alchemy
Quicknode
And more
2
votes
Is it possible to call contract that has no function?
Yes, you can; send a standard transaction to it.
Solidity compiles functions/methods into a custom switch/case pattern applied to the calldata sent to the smart contract with the tx. Following that ...
- 4,160
1
vote
Accepted
EVM are stack and memory part of the EVM context
You can find the answer in another question: Does stack persist through external calls?
The recipient contract doesn't have access to the caller contract's
stack.
There are two separate stacks: a ...
- 4,160
0
votes
Usage of cloned factory contract pattern for erc721 marketplace contracts
The advantage is that you can be confident that the cloned contracts work to the specifications that you set.
Therefore you can delegate to other people to perform the cloning. Or you can automate it.
...
- 3,790
0
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How to trim a string in solidity?
Here is a function in Solidity that I created to do just this. Typecast your string to bytes, and feed it into this function.
function byteSlice(bytes memory _data, uint256 _start, uint256 _end) ...
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“Personal address detected. Import the collectible contract address” error while importing an NFT from Opensea
To resolve the above issue I've searched on internet but didn't able to find anything to resolve this issue.
So, I've been to MetaMask support and they helped me out instantly. Here's what the actual ...
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