Merge pull request #108 from hackjammer/master

Transparent passthrough in the event of cache backend connection issues

CHANGELOG.md

@@ -5,6 +5,7 @@
 ### 0.2.1
 
 - Support cache jinja2 template response.
+- Transparently handle backend connection failures.
 
 ### 0.2.0
 

fastapi_cache/decorator.py

@@ -123,13 +123,18 @@ def cache(
                     args=args,
                     kwargs=copy_kwargs,
                 )
-
+            try:
                 ttl, ret = await backend.get_with_ttl(cache_key)
+            except ConnectionError:
+                ttl, ret = 0, None
             if not request:
                 if ret is not None:
                     return coder.decode(ret)
                 ret = await ensure_async_func(*args, **kwargs)
+                try:
                     await backend.set(cache_key, coder.encode(ret), expire or FastAPICache.get_expire())
+                except ConnectionError:
+                    pass
                 return ret
 
             if request.method != "GET":
@@ -148,7 +153,10 @@ def cache(
 
             ret = await ensure_async_func(*args, **kwargs)
 
+            try:
                 await backend.set(cache_key, coder.encode(ret), expire or FastAPICache.get_expire())
+            except ConnectionError:
+                pass
             return ret
 
         return inner