Questions tagged [address.call]
The address.call tag has no usage guidance.
14
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Issue with msg.sender. Calling contract B from contract A
There is currently a published contract (contract A), I must use another(contract B) to call withdraw() from contract A.
But the function withdraw() already uses msg.sender as a security check. In ...
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1
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48
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Low-level function call to other contract is causing revert with correct function selector
I have 2 contracts, FloorInfo and Elevator.
I want to call the goTo(uint) in the Elevator contract from the FloorInfo contract using a low-level call, this happens in the go() function inside the ...
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1
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61
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Using .call to send funds to Smart Contract Wallet account
I have the following function in my smart contract which fails to send funds to a Smart Contract Wallet (SCW). It works fine with standard accounts. I explicitly set gas to 0 because this is an ...
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697
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How to transfer USDT with .call
I need to transfer USDT Token (Not ETH) using .call with solidity. ¿Some idea?
Thanks.
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address.call{}(abi.encodeWithSignature()) in solidity returns boolean and what other parameters?
I learned from this documentation https://docs.soliditylang.org/en/v0.8.15/contracts.html and this discussion How to use address.call{}() in solidity about abi.encodeWithSignature() .
I have question ...
- 115
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248
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address.transfer() fails, while address.call{}() works fine in reentrancy attack. Why?
I was trying to learn reentrancy attacks and how to save the contracts against them. I previously user address.transfer() to withdraw the amount, but the function reverted when performing the attack. ...
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Why is the address.call function failing?
Im trying to run the following solidity-by-example on remix:
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.10;
contract Payable {
// Payable address can receive Ether
address payable public ...
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What is returned from msg.sender.call{value: amount}("");?
I am working through some sample contracts online and ran across the lines below:
(bool sent, ) = msg.sender.call{value: amount}("");
require(sent, "Failed to send ETH.");
I ...
- 3
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863
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How to set the receiver of ETH in a contract to send ETH from one address to another with solidity usign call() in remix IDE
I'm starting to learn solidity, and I'm trying to build a sendEther contract where some address sends an amount of ether to another address. I'm building it on remix, and I'm having trouble while ...
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How to transfer ether within contracts?
When I use the toAddress.call{value: amt}(""); code, it works fine to transfer ether to EOA account but comes back false if its sent to contract. Why is that?
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"Error: Provider not set or invalid" When accessing contract methods
I have write a contract and deployed it through remix-ethereum IDE. That process goes alright. While accessing functions of contract through web3 in javascript I get following error
Error: Provider ...
- 21
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73
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Calling a function of a deployed smartcontract by my smartcontract fails, while calling it using web3.py with the same bytedata succeeds
I want to call a function of an external smartcontract using my smartcontract. I wrote the following solidity code:
contract main {
address public toCall = theAddressToCall;
function ...
- 1
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792
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Transfer ether between two addressrd using call
I have this code:
function regAgent(uint[] memory _preferences) notOwner onlyBeforeEnd public {
require(msg.sender.balance - fee >= 0, "You can't pay the fee.");
require(!...
- 281
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341
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setting value using address.call() doesn't works
I am trying to run a setter function (testCallBar) in Caller contract which should run setVal() of Receiver contract using call method. But it does not works. testCallFoo() works as expected but ...
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