From 539e8c11ec4d256b0b21884f5330d71afcc076cc Mon Sep 17 00:00:00 2001
From: messense <messense@icloud.com>
Date: Thu, 27 Jun 2019 23:34:21 +0800
Subject: [PATCH] Cleanup len parse code

---
 src/types/json.rs | 13 +++++--------
 1 file changed, 5 insertions(+), 8 deletions(-)

diff --git a/src/types/json.rs b/src/types/json.rs
index 92b865c05..de0ffb54c 100644
--- a/src/types/json.rs
+++ b/src/types/json.rs
@@ -322,14 +322,11 @@ where
             };
         }
 
-        let mut len = None;
-        if let Some(l) = req.headers().get(&CONTENT_LENGTH) {
-            if let Ok(s) = l.to_str() {
-                if let Ok(l) = s.parse::<usize>() {
-                    len = Some(l)
-                }
-            }
-        }
+        let len = req
+            .headers()
+            .get(&CONTENT_LENGTH)
+            .and_then(|l| l.to_str().ok())
+            .and_then(|s| s.parse::<usize>().ok());
         let payload = Decompress::from_headers(payload.take(), req.headers());
 
         JsonBody {