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Kwpolska
195 lines
4.9 KiB
ReStructuredText
195 lines
4.9 KiB
ReStructuredText
.. _api:
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Developer Interface
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===================
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.. module:: requests
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This part of the documentation covers all the interfaces of Requests. For
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parts where Requests depends on external libraries, we document the most
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important right here and provide links to the canonical documentation.
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Main Interface
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--------------
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All of Requests' functionality can be accessed by these 7 methods.
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They all return an instance of the :class:`Response <Response>` object.
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.. autofunction:: request
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.. autofunction:: head
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.. autofunction:: get
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.. autofunction:: post
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.. autofunction:: put
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.. autofunction:: patch
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.. autofunction:: delete
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Lower-Level Classes
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~~~~~~~~~~~~~~~~~~~
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.. autoclass:: requests.Request
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:inherited-members:
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.. autoclass:: Response
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:inherited-members:
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Request Sessions
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----------------
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.. autoclass:: Session
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:inherited-members:
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.. autoclass:: requests.adapters.HTTPAdapter
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:inherited-members:
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Exceptions
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~~~~~~~~~~
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.. autoexception:: requests.exceptions.RequestException
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.. autoexception:: requests.exceptions.ConnectionError
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.. autoexception:: requests.exceptions.HTTPError
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.. autoexception:: requests.exceptions.URLRequired
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.. autoexception:: requests.exceptions.TooManyRedirects
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Status Code Lookup
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~~~~~~~~~~~~~~~~~~
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.. autofunction:: requests.codes
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::
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>>> requests.codes['temporary_redirect']
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307
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>>> requests.codes.teapot
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418
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>>> requests.codes['\o/']
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200
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Cookies
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~~~~~~~
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.. autofunction:: requests.utils.dict_from_cookiejar
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.. autofunction:: requests.utils.cookiejar_from_dict
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.. autofunction:: requests.utils.add_dict_to_cookiejar
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Encodings
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~~~~~~~~~
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.. autofunction:: requests.utils.get_encodings_from_content
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.. autofunction:: requests.utils.get_encoding_from_headers
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.. autofunction:: requests.utils.get_unicode_from_response
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Classes
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~~~~~~~
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.. autoclass:: requests.Response
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:inherited-members:
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.. autoclass:: requests.Request
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:inherited-members:
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.. autoclass:: requests.PreparedRequest
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:inherited-members:
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.. _sessionapi:
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.. autoclass:: requests.Session
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:inherited-members:
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.. autoclass:: requests.adapters.HTTPAdapter
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:inherited-members:
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Migrating to 1.x
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----------------
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This section details the main differences between 0.x and 1.x and is meant
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to ease the pain of upgrading.
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API Changes
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~~~~~~~~~~~
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* ``Response.json`` is now a callable and not a property of a response.
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::
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import requests
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r = requests.get('https://github.com/timeline.json')
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r.json() # This *call* raises an exception if JSON decoding fails
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* The ``Session`` API has changed. Sessions objects no longer take parameters.
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``Session`` is also now capitalized, but it can still be
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instantiated with a lowercase ``session`` for backwards compatibility.
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::
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s = requests.Session() # formerly, session took parameters
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s.auth = auth
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s.headers.update(headers)
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r = s.get('http://httpbin.org/headers')
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* All request hooks have been removed except 'response'.
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* Authentication helpers have been broken out into separate modules. See
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requests-oauthlib_ and requests-kerberos_.
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.. _requests-oauthlib: https://github.com/requests/requests-oauthlib
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.. _requests-kerberos: https://github.com/requests/requests-kerberos
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* The parameter for streaming requests was changed from ``prefetch`` to
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``stream`` and the logic was inverted. In addition, ``stream`` is now
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required for raw response reading.
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::
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# in 0.x, passing prefetch=False would accomplish the same thing
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r = requests.get('https://github.com/timeline.json', stream=True)
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r.raw.read(10)
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* The ``config`` parameter to the requests method has been removed. Some of
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these options are now configured on a ``Session`` such as keep-alive and
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maximum number of redirects. The verbosity option should be handled by
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configuring logging.
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::
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import requests
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import logging
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# these two lines enable debugging at httplib level (requests->urllib3->httplib)
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# you will see the REQUEST, including HEADERS and DATA, and RESPONSE with HEADERS but without DATA.
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# the only thing missing will be the response.body which is not logged.
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import httplib
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httplib.HTTPConnection.debuglevel = 1
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logging.basicConfig() # you need to initialize logging, otherwise you will not see anything from requests
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logging.getLogger().setLevel(logging.DEBUG)
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requests_log = logging.getLogger("requests.packages.urllib3")
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requests_log.setLevel(logging.DEBUG)
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requests_log.propagate = True
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requests.get('http://httpbin.org/headers')
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Licensing
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~~~~~~~~~
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One key difference that has nothing to do with the API is a change in the
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license from the ISC_ license to the `Apache 2.0`_ license. The Apache 2.0
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license ensures that contributions to Requests are also covered by the Apache
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2.0 license.
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.. _ISC: http://opensource.org/licenses/ISC
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.. _Apache 2.0: http://opensource.org/licenses/Apache-2.0
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