use crate::{BlockData, BlockHeaderData, BlockSource, AsyncBlockSourceResult};
use crate::http::{BinaryResponse, HttpEndpoint, HttpClient, JsonResponse};
+use crate::gossip::UtxoSource;
+use crate::convert::GetUtxosResponse;
+use bitcoin::OutPoint;
use bitcoin::hash_types::BlockHash;
use bitcoin::hashes::hex::ToHex;
}
}
+impl UtxoSource for RestClient {
+ fn get_block_hash_by_height<'a>(&'a self, block_height: u32) -> AsyncBlockSourceResult<'a, BlockHash> {
+ Box::pin(async move {
+ let resource_path = format!("blockhashbyheight/{}.bin", block_height);
+ Ok(self.request_resource::<BinaryResponse, _>(&resource_path).await?)
+ })
+ }
+
+ fn is_output_unspent<'a>(&'a self, outpoint: OutPoint) -> AsyncBlockSourceResult<'a, bool> {
+ Box::pin(async move {
+ let resource_path = format!("getutxos/{}-{}.json", outpoint.txid.to_hex(), outpoint.vout);
+ let utxo_result =
+ self.request_resource::<JsonResponse, GetUtxosResponse>(&resource_path).await?;
+ Ok(utxo_result.hit_bitmap_nonempty)
+ })
+ }
+}
+
#[cfg(test)]
mod tests {
use super::*;
use crate::http::BinaryResponse;
use crate::http::client_tests::{HttpServer, MessageBody};
+ use bitcoin::hashes::Hash;
/// Parses binary data as a string-encoded `u32`.
impl TryInto<u32> for BinaryResponse {
Ok(n) => assert_eq!(n, 42),
}
}
+
+ #[tokio::test]
+ async fn parses_negative_getutxos() {
+ let server = HttpServer::responding_with_ok(MessageBody::Content(
+ // A real response contains a few more fields, but we actually only look at the
+ // "bitmap" field, so this should suffice for testing
+ "{\"chainHeight\": 1, \"bitmap\":\"0\",\"utxos\":[]}"
+ ));
+ let client = RestClient::new(server.endpoint()).unwrap();
+
+ let outpoint = OutPoint::new(bitcoin::Txid::from_inner([0; 32]), 0);
+ let unspent_output = client.is_output_unspent(outpoint).await.unwrap();
+ assert_eq!(unspent_output, false);
+ }
+
+ #[tokio::test]
+ async fn parses_positive_getutxos() {
+ let server = HttpServer::responding_with_ok(MessageBody::Content(
+ // A real response contains lots more data, but we actually only look at the "bitmap"
+ // field, so this should suffice for testing
+ "{\"chainHeight\": 1, \"bitmap\":\"1\",\"utxos\":[]}"
+ ));
+ let client = RestClient::new(server.endpoint()).unwrap();
+
+ let outpoint = OutPoint::new(bitcoin::Txid::from_inner([0; 32]), 0);
+ let unspent_output = client.is_output_unspent(outpoint).await.unwrap();
+ assert_eq!(unspent_output, true);
+ }
}