All Questions
Tagged with cpp-ethereum ethereum-wallet-dapp
13 questions
0
votes
1
answer
33
views
Dose contracts must be deployed?
I see js programmers compile and call solidity contract without actually deploying it using hardhat and/or similar tools. Do they really can use the contract without deploying on the chain(like swap ...
- 69
0
votes
1
answer
238
views
1Inch with flashloan provider
Is there a way to trade on 1Inch using the API and flash-loaned balance. If it is possible please give me some info. I was seeing the DOC to find how to integrate the flash-loan provider with 1Inch ...
- 69
0
votes
1
answer
494
views
getAmountsOut and sushiswap user interface shows different result
Hello eth communities..
I am trying to interact with ethereum chain using programming and I'm using getAmountsOut to get swap path quote using sushiswap's contract. But the result in my vscode and ...
- 69
1
vote
0
answers
75
views
Uniswapv2 "quote" ABI
I am trying to sign contractof Uniswapv2 on ethereum mainnet using "quote" ABI. the function is
quote(uint amountA, uint reserveA, uint reserveB)
I use c++ to make the raw transaction and ...
- 69
2
votes
2
answers
836
views
How to retrieve 1 eth I send by mistake to my smart contract token?
This is the contract as you see there's one eth there https://etherscan.io/address/0x19d71f00354ad302e89ca47e59b68917f9a871d7#code.
I still have ownership of contract.
My eth stuck in smart contracts....
- 23
7
votes
3
answers
3k
views
Is there any c++ library for signing transactions?
I am working on light wallet in c++, and I am looking for a c++ library for signing transactions. I mean something where i will pass transaction and private key and it will return signed transaction ...
- 101
0
votes
1
answer
540
views
Ethereum stores its own data, how to synchronize the data to other nodes in the future
I use smart contracts in Ethereum to store some string data, how to synchronize these stored string data to other nodes.
As far as I know, these string data are stored in the node's leveldb database, ...
- 437
1
vote
2
answers
358
views
(error_10) Please enter a valid data value (Must be hex.)MyEther Wallet
I'm trying to deploy a smart contract on Myteherwallet but getting an error while deploying the byte code of the smart contract which is written in solidity remix IDE.
I have even tried to change the ...
- 96
0
votes
2
answers
92
views
No longer have tokens after updating Nano S [closed]
I recently updated my Nano S and was required to reset everything. After udpdating I went to MEW to swap my KIN & I had a ETH Ballance of 0.000 & a KIN ballance of 0.000. I have the address ...
- 1
1
vote
0
answers
74
views
ethereum wallet running a private net 0 peers 0 waiting for blocks
am using geth
VRSION:
1.8.20-stable-24d727b6
and ethereum wallet Ethereum-Wallet-linux64-0-9-3 and i am using Ubuntu 18.04.1 LTS in the geth console i started the miner but either is not ...
- 215
0
votes
2
answers
945
views
geth attach issue between mac and windows
I am running geth on windows machine and try for geth attach in mac. I give
below error:
Fatal: Failed to start the JavaScript console: api modules: Post http://192.168.0.107:8545: context deadline ...
0
votes
1
answer
110
views
Getting errors when sending ETH to a contract on testnet
I am trying to send ETH to a contract I have just created and I am getting errors
pragma solidity ^0.4.6;
contract Owned {
modifier only_owner {
if (msg.sender != owner) return; _;
}
...
- 103
2
votes
0
answers
96
views
Multiple arguments and return params
Sorry for a newbie question.
I'm designing a smart contract wherein I need to send in many( around 50) arguments to a setter method and return a list of same number of arguments in a getter.
So ...
- 133