Added function to get root_directory

src/environment.rs

@@ -3,3 +3,8 @@ pub async fn get_db_url() -> String {
     dotenvy::dotenv().ok();
     std::env::var(crate::keys::DBURL).expect(crate::keys::error::ERROR)
 }
+
+pub async fn get_root_directory() -> Result<String, std::env::VarError> {
+    dotenvy::dotenv().ok();
+    std::env::var(crate::keys::ROOT_DIRECTORY)
+}