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transparent passthrough in the event of backend connection issues

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hackjammer
2023-01-05 18:44:40 +00:00
parent 8f0920d0d7
commit b420f26e9b
2 changed files with 13 additions and 4 deletions
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1
CHANGELOG.md
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@@ -5,6 +5,7 @@
### 0.2.1 ### 0.2.1
- Support cache jinja2 template response. - Support cache jinja2 template response.
- Transparently handle backend connection failures.
### 0.2.0 ### 0.2.0

10
fastapi_cache/decorator.py
View File

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