Function gstd::msg::reply_from_reservation

pub fn reply_from_reservation<E: Encode>(
    id: ReservationId,
    payload: E,
    value: u128,
) -> Result<MessageId>

Same as reply, but it spends gas from a reservation instead of borrowing gas from the gas limit provided with the incoming message.

The first argument is the reservation identifier ReservationId obtained by calling the corresponding API. The second argument is the encodable payload. The last argument is the value to be transferred from the current program account to the reply message target account.

Examples

use gstd::{msg, prelude::*, ReservationId};

#[derive(Encode)]
#[codec(crate = gstd::codec)]
struct Reply {
    a: i32,
    b: Option<bool>,
}

#[no_mangle]
extern "C" fn handle() {
    let reservation_id = ReservationId::reserve(5_000_000, 100).expect("Unable to reserve");
    let payload = Reply {
        a: 42,
        b: Some(true),
    };

    msg::reply_from_reservation(reservation_id, payload, 0).unwrap();
}

See also

• send_from_reservation function sends a new message to the program or user by using gas from a reservation.