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I need to transfer ether from msg.sender to an address in solidity.How should i do it

2 Answers 2

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First make payable function in you contract, and check amount of ether that was transferred by user to your contract:

require(msg.value == 1 ether, 'Wrong ether value transferred');

next you can transfer corresponding amount to destination address:

address(_dst).send(1 ether);

or in one function:

address(_dst).send(msg.value);
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Note that you should use call instead of transfer or send. More on that here: https://consensys.net/diligence/blog/2019/09/stop-using-soliditys-transfer-now/

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