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In theory we could use this command:

cargo contract remove --execute --code-hash '******' --url 'wss://rococo-contracts-rpc.polkadot.io' --suri 'seeds'

But in order to do that we have first to terminate the smart contract that was uploaded and instantiated.

How to do this in a "graceful way" ?

Note:For instance in Ethereum there is a horrendous thing called "selfdestruct".

1 Answer 1

1

One of possible solutions would be to have per default as "best practices" in every smart-contract created a function called "destructor" together with a "beneficiary account".

    #[ink(message, payable)]
    pub fn destructor(&self)  -> Result<(), Error> {
        let caller = self.env().caller();
        if caller == self.beneficiary_account_id {
            self.env().terminate_contract(self.beneficiary_account_id);
        } else {
            return Err(Error::InvalidCaller);
        }
    }

Would be nice to hear other points of view of this approach.

Cheers,

1
  • By the way there is a good example here
    – Evil Kyle
    Jul 27, 2023 at 18:42

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