Trait near_contract_tools::standard::nep141::Nep141Receiver

pub trait Nep141Receiver {
    fn ft_on_transfer(
        &mut self,
        sender_id: AccountId,
        amount: U128,
        msg: String
    ) -> PromiseOrValue<U128>;
}

A contract that may be the recipient of an ft_transfer_call function call.

Required Methods

fn ft_on_transfer(
    &mut self,
    sender_id: AccountId,
    amount: U128,
    msg: String
) -> PromiseOrValue<U128>

Function that is called in an ft_transfer_call promise chain. Returns the number of tokens “used”, that is, those that will be kept in the receiving contract’s account. (The contract will attempt to refund the difference from amount to the original sender.)

Implementors