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Base HTTP service client

Project description

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A base HTTP service client.

By default it “demands” successful responses from API endpoints, otherwise it raises an exception.

Demands accepts all the same parameters as requests.request and extends the requests.Session class, documentation for both: Requests Developer Interface.

Written and used by the folks at Yola to support our free website builder.

HTTPServiceClient Overview

  • base class for creating service clients
  • provides flexible way of http error handling for descendants
  • HTTPServiceError raised on unexpected service response
  • Supports pre-send and post-send hooks

Usage

from demands import HTTPServiceClient

class MyService(HTTPServiceClient):
    def get_user(self, user_id):
        return self.get('/users/%s/' % user_id).json()

    def safe_get_user(self, user_id, default_user):
        response = self.get(
            '/users/%s/' % user_id,
            expected_response_codes=[404])
        return response.json() if response.is_ok else default_user


service = MyService(url='http://localhost/')
user = service.get_user(1234)

Any parameters passed to the constructor will also be used for each and every request:

service = MyService(
    url='http://localhost/',
    headers={'h1':'value'},
    auth=('username','pass'),
)

# sent with auth and both headers
user = service.get('/some-path', headers={'h2': 'kittens'})

Testing

Install development requirements:

pip install -r requirements.txt

Run the tests with:

nosetests

API documentation

To generate the documentation:

cd docs && PYTHONPATH=.. make singlehtml

Project details


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