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268 lines (214 loc) · 12.1 KB
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import ssl
from typing import Any, Dict, Optional, Union
import httpx
from attrs import define, evolve, field
@define
class Client:
"""A class for keeping track of data related to the API
The following are accepted as keyword arguments and will be used to construct httpx Clients internally:
``base_url``: The base URL for the API, all requests are made to a relative path to this URL
``cookies``: A dictionary of cookies to be sent with every request
``headers``: A dictionary of headers to be sent with every request
``timeout``: The maximum amount of a time a request can take. API functions will raise
httpx.TimeoutException if this is exceeded.
``verify_ssl``: Whether or not to verify the SSL certificate of the API server. This should be True in production,
but can be set to False for testing purposes.
``follow_redirects``: Whether or not to follow redirects. Default value is False.
``httpx_args``: A dictionary of additional arguments to be passed to the ``httpx.Client`` and ``httpx.AsyncClient`` constructor.
Attributes:
raise_on_unexpected_status: Whether or not to raise an errors.UnexpectedStatus if the API returns a
status code that was not documented in the source OpenAPI document. Can also be provided as a keyword
argument to the constructor.
"""
raise_on_unexpected_status: bool = field(default=False, kw_only=True)
_base_url: str = field(alias="base_url")
_cookies: Dict[str, str] = field(factory=dict, kw_only=True, alias="cookies")
_headers: Dict[str, str] = field(factory=dict, kw_only=True, alias="headers")
_timeout: Optional[httpx.Timeout] = field(default=None, kw_only=True, alias="timeout")
_verify_ssl: Union[str, bool, ssl.SSLContext] = field(default=True, kw_only=True, alias="verify_ssl")
_follow_redirects: bool = field(default=False, kw_only=True, alias="follow_redirects")
_httpx_args: Dict[str, Any] = field(factory=dict, kw_only=True, alias="httpx_args")
_client: Optional[httpx.Client] = field(default=None, init=False)
_async_client: Optional[httpx.AsyncClient] = field(default=None, init=False)
def with_headers(self, headers: Dict[str, str]) -> "Client":
"""Get a new client matching this one with additional headers"""
if self._client is not None:
self._client.headers.update(headers)
if self._async_client is not None:
self._async_client.headers.update(headers)
return evolve(self, headers={**self._headers, **headers})
def with_cookies(self, cookies: Dict[str, str]) -> "Client":
"""Get a new client matching this one with additional cookies"""
if self._client is not None:
self._client.cookies.update(cookies)
if self._async_client is not None:
self._async_client.cookies.update(cookies)
return evolve(self, cookies={**self._cookies, **cookies})
def with_timeout(self, timeout: httpx.Timeout) -> "Client":
"""Get a new client matching this one with a new timeout (in seconds)"""
if self._client is not None:
self._client.timeout = timeout
if self._async_client is not None:
self._async_client.timeout = timeout
return evolve(self, timeout=timeout)
def set_httpx_client(self, client: httpx.Client) -> "Client":
"""Manually set the underlying httpx.Client
**NOTE**: This will override any other settings on the client, including cookies, headers, and timeout.
"""
self._client = client
return self
def get_httpx_client(self) -> httpx.Client:
"""Get the underlying httpx.Client, constructing a new one if not previously set"""
if self._client is None:
self._client = httpx.Client(
base_url=self._base_url,
cookies=self._cookies,
headers=self._headers,
timeout=self._timeout,
verify=self._verify_ssl,
follow_redirects=self._follow_redirects,
**self._httpx_args,
)
return self._client
def __enter__(self) -> "Client":
"""Enter a context manager for self.client—you cannot enter twice (see httpx docs)"""
self.get_httpx_client().__enter__()
return self
def __exit__(self, *args: Any, **kwargs: Any) -> None:
"""Exit a context manager for internal httpx.Client (see httpx docs)"""
self.get_httpx_client().__exit__(*args, **kwargs)
def set_async_httpx_client(self, async_client: httpx.AsyncClient) -> "Client":
"""Manually the underlying httpx.AsyncClient
**NOTE**: This will override any other settings on the client, including cookies, headers, and timeout.
"""
self._async_client = async_client
return self
def get_async_httpx_client(self) -> httpx.AsyncClient:
"""Get the underlying httpx.AsyncClient, constructing a new one if not previously set"""
if self._async_client is None:
self._async_client = httpx.AsyncClient(
base_url=self._base_url,
cookies=self._cookies,
headers=self._headers,
timeout=self._timeout,
verify=self._verify_ssl,
follow_redirects=self._follow_redirects,
**self._httpx_args,
)
return self._async_client
async def __aenter__(self) -> "Client":
"""Enter a context manager for underlying httpx.AsyncClient—you cannot enter twice (see httpx docs)"""
await self.get_async_httpx_client().__aenter__()
return self
async def __aexit__(self, *args: Any, **kwargs: Any) -> None:
"""Exit a context manager for underlying httpx.AsyncClient (see httpx docs)"""
await self.get_async_httpx_client().__aexit__(*args, **kwargs)
@define
class AuthenticatedClient:
"""A Client which has been authenticated for use on secured endpoints
The following are accepted as keyword arguments and will be used to construct httpx Clients internally:
``base_url``: The base URL for the API, all requests are made to a relative path to this URL
``cookies``: A dictionary of cookies to be sent with every request
``headers``: A dictionary of headers to be sent with every request
``timeout``: The maximum amount of a time a request can take. API functions will raise
httpx.TimeoutException if this is exceeded.
``verify_ssl``: Whether or not to verify the SSL certificate of the API server. This should be True in production,
but can be set to False for testing purposes.
``follow_redirects``: Whether or not to follow redirects. Default value is False.
``httpx_args``: A dictionary of additional arguments to be passed to the ``httpx.Client`` and ``httpx.AsyncClient`` constructor.
Attributes:
raise_on_unexpected_status: Whether or not to raise an errors.UnexpectedStatus if the API returns a
status code that was not documented in the source OpenAPI document. Can also be provided as a keyword
argument to the constructor.
token: The token to use for authentication
prefix: The prefix to use for the Authorization header
auth_header_name: The name of the Authorization header
"""
raise_on_unexpected_status: bool = field(default=False, kw_only=True)
_base_url: str = field(alias="base_url")
_cookies: Dict[str, str] = field(factory=dict, kw_only=True, alias="cookies")
_headers: Dict[str, str] = field(factory=dict, kw_only=True, alias="headers")
_timeout: Optional[httpx.Timeout] = field(default=None, kw_only=True, alias="timeout")
_verify_ssl: Union[str, bool, ssl.SSLContext] = field(default=True, kw_only=True, alias="verify_ssl")
_follow_redirects: bool = field(default=False, kw_only=True, alias="follow_redirects")
_httpx_args: Dict[str, Any] = field(factory=dict, kw_only=True, alias="httpx_args")
_client: Optional[httpx.Client] = field(default=None, init=False)
_async_client: Optional[httpx.AsyncClient] = field(default=None, init=False)
token: str
prefix: str = "Bearer"
auth_header_name: str = "Authorization"
def with_headers(self, headers: Dict[str, str]) -> "AuthenticatedClient":
"""Get a new client matching this one with additional headers"""
if self._client is not None:
self._client.headers.update(headers)
if self._async_client is not None:
self._async_client.headers.update(headers)
return evolve(self, headers={**self._headers, **headers})
def with_cookies(self, cookies: Dict[str, str]) -> "AuthenticatedClient":
"""Get a new client matching this one with additional cookies"""
if self._client is not None:
self._client.cookies.update(cookies)
if self._async_client is not None:
self._async_client.cookies.update(cookies)
return evolve(self, cookies={**self._cookies, **cookies})
def with_timeout(self, timeout: httpx.Timeout) -> "AuthenticatedClient":
"""Get a new client matching this one with a new timeout (in seconds)"""
if self._client is not None:
self._client.timeout = timeout
if self._async_client is not None:
self._async_client.timeout = timeout
return evolve(self, timeout=timeout)
def set_httpx_client(self, client: httpx.Client) -> "AuthenticatedClient":
"""Manually set the underlying httpx.Client
**NOTE**: This will override any other settings on the client, including cookies, headers, and timeout.
"""
self._client = client
return self
def get_httpx_client(self) -> httpx.Client:
"""Get the underlying httpx.Client, constructing a new one if not previously set"""
if self._client is None:
self._headers[self.auth_header_name] = f"{self.prefix} {self.token}" if self.prefix else self.token
self._client = httpx.Client(
base_url=self._base_url,
cookies=self._cookies,
headers=self._headers,
timeout=self._timeout,
verify=self._verify_ssl,
follow_redirects=self._follow_redirects,
**self._httpx_args,
)
return self._client
def __enter__(self) -> "AuthenticatedClient":
"""Enter a context manager for self.client—you cannot enter twice (see httpx docs)"""
self.get_httpx_client().__enter__()
return self
def __exit__(self, *args: Any, **kwargs: Any) -> None:
"""Exit a context manager for internal httpx.Client (see httpx docs)"""
self.get_httpx_client().__exit__(*args, **kwargs)
def set_async_httpx_client(self, async_client: httpx.AsyncClient) -> "AuthenticatedClient":
"""Manually the underlying httpx.AsyncClient
**NOTE**: This will override any other settings on the client, including cookies, headers, and timeout.
"""
self._async_client = async_client
return self
def get_async_httpx_client(self) -> httpx.AsyncClient:
"""Get the underlying httpx.AsyncClient, constructing a new one if not previously set"""
if self._async_client is None:
self._headers[self.auth_header_name] = f"{self.prefix} {self.token}" if self.prefix else self.token
self._async_client = httpx.AsyncClient(
base_url=self._base_url,
cookies=self._cookies,
headers=self._headers,
timeout=self._timeout,
verify=self._verify_ssl,
follow_redirects=self._follow_redirects,
**self._httpx_args,
)
return self._async_client
async def __aenter__(self) -> "AuthenticatedClient":
"""Enter a context manager for underlying httpx.AsyncClient—you cannot enter twice (see httpx docs)"""
await self.get_async_httpx_client().__aenter__()
return self
async def __aexit__(self, *args: Any, **kwargs: Any) -> None:
"""Exit a context manager for underlying httpx.AsyncClient (see httpx docs)"""
await self.get_async_httpx_client().__aexit__(*args, **kwargs)
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