过滤coinex不是usdt结尾币对

src/json_db_utils.rs

@@ -296,12 +296,18 @@ pub fn get_symbols_by_exchange(exchange: &str) -> Value {
 
     let path_str = format!("./db/{}", exchange);
     let path = Path::new(&path_str);
-
-    if let Some(latest_dir) = find_latest_directory(path).unwrap() {
-        info!("找到最后一日生成的目录: {}", latest_dir.to_str().unwrap());
-        let subdirectories = list_directories(&latest_dir).unwrap();
-        for sub_dir in subdirectories {
-            symbols.push(sub_dir.file_name().unwrap().to_str().unwrap().to_string())
+    let latest_directory = find_latest_directory(path);
+    match latest_directory {
+        Ok(dir) => {
+            let latest_dir = dir.unwrap();
+            info!("找到最后一日生成的目录: {}", latest_dir.to_str().unwrap());
+            let subdirectories = list_directories(&latest_dir).unwrap();
+            for sub_dir in subdirectories {
+                symbols.push(sub_dir.file_name().unwrap().to_str().unwrap().to_string())
+            }
+        }
+        Err(_) => {
+            return serde_json::to_value(&symbols).unwrap();
         }
     }