From eb55b01be9fe1ca9b2d5c2bdfeaee04e34d6ad89 Mon Sep 17 00:00:00 2001
From: "alexandr.yagolovich" <2690736@gmail.com>
Date: Wed, 28 Apr 2021 20:44:35 +0300
Subject: [PATCH] timezone serializer to coder.JsonEncoder for
 datetime.datetime instances

---
 fastapi_cache/coder.py | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/fastapi_cache/coder.py b/fastapi_cache/coder.py
index 9914b24..6534a2d 100644
--- a/fastapi_cache/coder.py
+++ b/fastapi_cache/coder.py
@@ -16,7 +16,10 @@ CONVERTERS = {
 class JsonEncoder(json.JSONEncoder):
     def default(self, obj):
         if isinstance(obj, datetime.datetime):
-            return {"val": obj.strftime("%Y-%m-%d %H:%M:%S"), "_spec_type": "datetime"}
+            if obj.tzinfo:
+                return {"val": obj.strftime("%Y-%m-%d %H:%M:%S%z"), "_spec_type": "datetime"}
+            else:
+                return {"val": obj.strftime("%Y-%m-%d %H:%M:%S"), "_spec_type": "datetime"}
         elif isinstance(obj, datetime.date):
             return {"val": obj.strftime("%Y-%m-%d"), "_spec_type": "date"}
         elif isinstance(obj, Decimal):