Call.sol

//  It's A call documentation but it's not recomended
//  Better way is send, not call.

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.17;
contract Receiver {
 event Received(address caller, uint amount, string message);
fallback() external payable {
 emit Received(msg.sender, msg.value, "Fallback was called");
 }
function foo(string memory _message, uint _x) public payable returns (uint) {
 emit Received(msg.sender, msg.value, _message);
return _x + 1;
 }
}
contract Caller {
 event Response(bool success, bytes data);
function testCallFoo(address payable _addr) public payable {
 (bool success, bytes memory data) = _addr.call{value: msg.value, gas: 5000}(
 abi.encodeWithSignature("foo(string,uint256)", "call foo", 123)
 );
emit Response(success, data);
 }
function testCallDoesNotExist(address payable _addr) public payable {
 (bool success, bytes memory data) = _addr.call{value: msg.value
}(
 abi.encodeWithSignature("doesNotExist()")
 );
emit Response(success, data);
 }
}