not unwraping, and passing err over requester

src/requester.rs

@@ -11,7 +11,7 @@ impl Requester {
     where
         T: DeserializeOwned,
     {
-        let body = req.collect().await.unwrap().to_bytes();
+        let body = req.collect().await?.to_bytes();
         Ok(serde_json::from_slice(&body)?)
     }
 }