NEP-141 implementation

Question

While trying to implement NEP-141 fungible token, I am using trait

impl FungibleTokenCore for FungibleToken {

fn ft_transfer(&mut self, receiver_id: ValidAccountId, amount: U128, memo: Option<String>) {
        assert_one_yocto();
        let sender_id = env::predecessor_account_id();
        let amount: Balance = amount.into();
        self.internal_transfer(&sender_id, receiver_id.as_ref(), amount, memo);
    }

}

But the problem is the function ft_transfer is inaccessible from the contract. It gives error: "Contract method is not found".

export TOKEN=dev-1618119753426-1904392
near call $TOKEN ft_transfer '{"receiver_id":"avrit.testnet", "amount": 10, "memo":""}' --accountId=amiyatulu.testnet

Answer 1

Your method must be public. See the near-sdk-rs docs README for a few examples.

https://github.com/near/near-sdk-rs

Answer 2

You probably need a pub before that fn. See Best Practices.

Also see FT example. You can use the near-contract-standards library to simplify your efforts.