I feel like the Refresh header would fit in great with RSS feeds, and other systems where things should be refreshed every now and then.
I added this to my software recently:
```python
class RemoteDataSource(ObjectDataSource):
def __init__(self, uri):
super().__init__({})
self.uri = uri
self.remote_exists = False
self.next_update = 0
def update(self):
if self.next_update > time.time():
return
# I long for the day when toml has a registered media type
response = requests.get(self.uri, headers={'user-agent': 'ganarchy/0.0.0', 'accept': '*/*'})
self.remote_exists = response.status_code == 200
seconds = 3600
if (refresh := response.headers.get('Refresh', None)) is not None:
try:
seconds = int(refresh)
except ValueError:
refresh = refresh.split(';', 1)
try:
seconds = int(refresh[0])
except ValueError:
pass
self.next_update = time.time() + seconds
if self.remote_exists:
response.encoding = 'utf-8'
try:
self._obj = qtoml.loads(response.text)
except (UnicodeDecodeError, qtoml.decoder.TOMLDecodeError) as e:
self._obj = {}
return e
else:
return response
def exists(self):
return self.remote_exists
def __repr__(self):
return "RemoteDataSource({!r})".format(self.uri)
```
maybe you too can make use of the Refresh header?
:joy: