Allow get_address_txns to get more than the first 25 txns

Author: praveenperera

src/async.rs

@@ -12,13 +12,13 @@
 //! Esplora by way of `reqwest` HTTP client.
 
 use async_std::task;
-use bitcoin::Address;
 use std::collections::HashMap;
 use std::str::FromStr;
 
 use bitcoin::consensus::{deserialize, serialize, Decodable, Encodable};
 use bitcoin::hashes::{sha256, Hash};
 use bitcoin::hex::{DisplayHex, FromHex};
+use bitcoin::Address;
 use bitcoin::{
     block::Header as BlockHeader, Block, BlockHash, MerkleBlock, Script, Transaction, Txid,
 };
@@ -389,8 +389,17 @@ impl AsyncClient {
 
     /// Get transaction history for the specified address/scripthash, sorted with newest first.
     /// Returns up to 50 mempool transactions plus the first 25 confirmed transactions.
-    pub async fn get_address_txns(&self, address: &Address) -> Result<Vec<Tx>, Error> {
-        let path = format!("/address/{address}/txs");
+    /// You can request more confirmed transactions using an after_txid parameter.
+    pub async fn get_address_txns(
+        &self,
+        address: &Address,
+        after_txid: Option<Txid>,
+    ) -> Result<Vec<Tx>, Error> {
+        let path = match after_txid {
+            Some(after_txid) => format!("/address/{address}/txs/chain/{after_txid}"),
+            None => format!("/address/{address}/txs"),
+        };
+
         self.get_response_json(&path).await
     }
 

src/blocking.rs

@@ -328,8 +328,17 @@ impl BlockingClient {
 
     /// Get transaction history for the specified address/scripthash, sorted with newest first.
     /// Returns up to 50 mempool transactions plus the first 25 confirmed transactions.
-    pub fn get_address_txns(&self, address: &Address) -> Result<Vec<Tx>, Error> {
-        let path = format!("/address/{address}/txs");
+    /// You can request more confirmed transactions using an after_txid parameter.
+    pub fn get_address_txns(
+        &self,
+        address: &Address,
+        after_txid: Option<Txid>,
+    ) -> Result<Vec<Tx>, Error> {
+        let path = match after_txid {
+            Some(after_txid) => format!("/address/{address}/txs/chain/{after_txid}"),
+            None => format!("/address/{address}/txs"),
+        };
+
         self.get_response_json(&path)
     }
 

src/lib.rs

@@ -1061,8 +1061,8 @@ mod test {
         let _miner = MINER.lock().await;
         generate_blocks_and_wait(1);
 
-        let address_txns_blocking = blocking_client.get_address_txns(&address).unwrap();
-        let address_txns_async = async_client.get_address_txns(&address).await.unwrap();
+        let address_txns_blocking = blocking_client.get_address_txns(&address, None).unwrap();
+        let address_txns_async = async_client.get_address_txns(&address, None).await.unwrap();
 
         assert_eq!(address_txns_blocking, address_txns_async);
         assert_eq!(address_txns_async[0].txid, txid);