referrerpolicy=no-referrer-when-downgrade

snowbridge_outbound_queue_runtime_api/
lib.rs

1// SPDX-License-Identifier: Apache-2.0
2// SPDX-FileCopyrightText: 2023 Snowfork <hello@snowfork.com>
3#![cfg_attr(not(feature = "std"), no_std)]
4
5use frame_support::traits::tokens::Balance as BalanceT;
6use snowbridge_core::PricingParameters;
7use snowbridge_merkle_tree::MerkleProof;
8use snowbridge_outbound_queue_primitives::v1::{Command, Fee};
9
10sp_api::decl_runtime_apis! {
11	pub trait OutboundQueueApi<Balance> where Balance: BalanceT
12	{
13		/// Generate a merkle proof for a committed message identified by `leaf_index`.
14		/// The merkle root is stored in the block header as a
15		/// `sp_runtime::generic::DigestItem::Other`
16		fn prove_message(leaf_index: u64) -> Option<MerkleProof>;
17
18		/// Calculate the delivery fee for `command`
19		fn calculate_fee(command: Command, parameters: Option<PricingParameters<Balance>>) -> Fee<Balance>;
20	}
21}