blob: 942b198768856d308b7d84a56bb2f2220368a5e0 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
|
#!/usr/bin/env python
"""
An example of setting expiration for individual requests
"""
import time
from requests_cache import CachedSession
def main():
session = CachedSession('example_cache', backend='sqlite')
# By default, cached responses never expire
response = session.get('https://httpbin.org/get')
assert not response.from_cache
response = session.get('https://httpbin.org/get')
assert response.from_cache
assert not response.expires
# We can set default expiration for the session using expire_after
session = CachedSession('example_cache', backend='sqlite', expire_after=60)
session.cache.clear()
response = session.get('https://httpbin.org/get')
response = session.get('https://httpbin.org/get')
print('Expiration time:', response.expires)
# This can also be overridden for individual requests
session.cache.clear()
response = session.get('https://httpbin.org/get', expire_after=1)
response = session.get('https://httpbin.org/get')
assert response.from_cache
print('Expiration time:', response.expires)
# After 1 second, the cached value will expired
time.sleep(1.2)
assert response.is_expired
response = session.get('https://httpbin.org/get')
assert not response.from_cache
if __name__ == "__main__":
t = time.perf_counter()
main()
print('Elapsed: %.3f seconds' % (time.perf_counter() - t))
|
