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
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
|
"""Code generated by Speakeasy (https://speakeasy.com). DO NOT EDIT."""
import random
import time
from typing import List
import requests
class BackoffStrategy:
initial_interval: int
max_interval: int
exponent: float
max_elapsed_time: int
def __init__(self, initial_interval: int, max_interval: int, exponent: float, max_elapsed_time: int):
self.initial_interval = initial_interval
self.max_interval = max_interval
self.exponent = exponent
self.max_elapsed_time = max_elapsed_time
class RetryConfig:
strategy: str
backoff: BackoffStrategy
retry_connection_errors: bool
def __init__(self, strategy: str, backoff: BackoffStrategy, retry_connection_errors: bool):
self.strategy = strategy
self.backoff = backoff
self.retry_connection_errors = retry_connection_errors
class Retries:
config: RetryConfig
status_codes: List[str]
def __init__(self, config: RetryConfig, status_codes: List[str]):
self.config = config
self.status_codes = status_codes
class TemporaryError(Exception):
response: requests.Response
def __init__(self, response: requests.Response):
self.response = response
class PermanentError(Exception):
inner: Exception
def __init__(self, inner: Exception):
self.inner = inner
def retry(func, retries: Retries):
if retries.config.strategy == 'backoff':
def do_request():
res: requests.Response
try:
res = func()
for code in retries.status_codes:
if "X" in code.upper():
code_range = int(code[0])
status_major = res.status_code / 100
if status_major >= code_range and status_major < code_range + 1:
raise TemporaryError(res)
else:
parsed_code = int(code)
if res.status_code == parsed_code:
raise TemporaryError(res)
except requests.exceptions.ConnectionError as exception:
if retries.config.retry_connection_errors:
raise
raise PermanentError(exception) from exception
except requests.exceptions.Timeout as exception:
if retries.config.retry_connection_errors:
raise
raise PermanentError(exception) from exception
except TemporaryError:
raise
except Exception as exception:
raise PermanentError(exception) from exception
return res
return retry_with_backoff(do_request, retries.config.backoff.initial_interval, retries.config.backoff.max_interval, retries.config.backoff.exponent, retries.config.backoff.max_elapsed_time)
return func()
def retry_with_backoff(func, initial_interval=500, max_interval=60000, exponent=1.5, max_elapsed_time=3600000):
start = round(time.time()*1000)
retries = 0
while True:
try:
return func()
except PermanentError as exception:
raise exception.inner
except Exception as exception: # pylint: disable=broad-exception-caught
now = round(time.time()*1000)
if now - start > max_elapsed_time:
if isinstance(exception, TemporaryError):
return exception.response
raise
sleep = ((initial_interval/1000) *
exponent**retries + random.uniform(0, 1))
sleep = min(sleep, max_interval / 1000)
time.sleep(sleep)
retries += 1
|
