release: bal-server-0.2.2

src/db.rs

@@ -131,4 +131,17 @@ pub fn execute_insert(db: &Connection,
     Ok(())
 
 }
-                      
+pub fn get_total_transaction_number(db: Connection, network: &String) -> Result<i64,Error> {
+    let mut stmt = db.prepare("SELECT COUNT(*) as total_number FROM tbl_tx where network = ?;").unwrap();
+    stmt.bind((1,Value::String(network.to_string()))).unwrap();
+    match stmt.next(){
+        Ok(State::Row)=>{
+            Ok(stmt.read::<i64,_>("total_number").unwrap())
+        },
+        Ok(sqlite::State::Done) => todo!(),
+        Err(err)=>Err(err)
+
+
+    }
+
+}