feat: initialize Kurdistan SDK - independent fork of Polkadot SDK

bridges/snowbridge/pallets/outbound-queue-v2/src/api.rs

@@ -0,0 +1,19 @@
+// SPDX-License-Identifier: Apache-2.0
+// SPDX-FileCopyrightText: 2023 Snowfork <hello@snowfork.com>
+//! Helpers for implementing runtime api
+
+use crate::{Config, MessageLeaves};
+use frame_support::storage::StorageStreamIter;
+use snowbridge_merkle_tree::{merkle_proof, MerkleProof};
+
+pub fn prove_message<T>(leaf_index: u64) -> Option<MerkleProof>
+where
+	T: Config,
+{
+	if !MessageLeaves::<T>::exists() {
+		return None;
+	}
+	let proof =
+		merkle_proof::<<T as Config>::Hashing, _>(MessageLeaves::<T>::stream_iter(), leaf_index);
+	Some(proof)
+}