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
|
import abc
from typing import Any
from requests import Response, Session
class Transport(abc.ABC):
"""An HTTP transport interface."""
__slots__ = ()
@abc.abstractmethod
def get(self, url: str, params: dict, headers: dict) -> bytes:
"""Send a GET request."""
@abc.abstractmethod
def post(self, url: str, data: Any, headers: dict) -> bytes:
"""Send a POST request."""
class DefaultTransport(Transport):
"""Default transport based on the `requests` library.
Args:
timeout: Read timeout in seconds
"""
__slots__ = "session", "timeout"
def __init__(self, timeout: float = 2.0, session: Session | None = None):
"""Initialize the transport."""
self.timeout = timeout
self.session = session or Session()
def get(self, url: str, params: dict, headers: dict) -> bytes:
"""Send a GET request.
Args:
url: The base URL
params: The query parameters
headers: A key-value map of HTTP headers
Returns:
The encoded response content.
Raises:
HTTPError: if status code is not valid for content unmarshalling.
"""
res = self.session.get(
url,
params=params,
headers=headers,
timeout=self.timeout,
)
return self.handle_response(res)
def post(self, url: str, data: Any, headers: dict) -> Any:
"""Send a POST request.
Args:
url: The base URL
data: The request body payload
headers: A key-value map of HTTP headers
Returns:
The encoded response content.
Raises:
HTTPError: if status code is not valid for content unmarshalling.
"""
res = self.session.post(url, data=data, headers=headers, timeout=self.timeout)
return self.handle_response(res)
@classmethod
def handle_response(cls, response: Response) -> bytes:
"""Return the response content or raise an exception.
Status codes 200 or 500 means that we can unmarshall the response.
Args:
response: The response instance
Returns:
The encoded response content.
Raises:
HTTPError: If the response status code is not 200 or 500
"""
if response.status_code not in (200, 500):
response.raise_for_status()
return response.content
|
