The osc_lib.api.api Module¶

Base API Library

class osc_lib.api.api.BaseAPI(session=None, service_type=None, endpoint=None, **kwargs)¶

Bases: object

Base API wrapper for keystoneauth1.session.Session

Encapsulate the translation between keystoneauth1.session.Session and requests.Session in a single layer:

• Restore some requests.session.Session compatibility; keystoneauth1.session.Session.request() has the method and url arguments swapped from the rest of the requests-using world.
• Provide basic endpoint handling when a Service Catalog is not available.

HEADER_NAME = 'OpenStack-API-Version'¶

SERVICE_TYPE = ''¶

create(url, session=None, method=None, **params)¶

Create a new resource

Parameters:	url (string) – The API-specific portion of the URL path session (Session) – HTTP client session method (string) – HTTP method (default POST)

delete(url, session=None, **params)¶

Delete a resource

Parameters:	url (string) – The API-specific portion of the URL path session (Session) – HTTP client session

find(path, value=None, attr=None, headers=None)¶

Find a single resource by name or ID

Parameters:	path (string) – The API-specific portion of the URL path value (string) – search expression (required, really) attr (string) – name of attribute for secondary search headers (dict) – Headers dictionary to pass to requests

find_attr(path, value=None, attr=None, resource=None)¶

Find a resource via attribute or ID

Most APIs return a list wrapped by a dict with the resource name as key. Some APIs (Identity) return a dict when a query string is present and there is one return value. Take steps to unwrap these bodies and return a single dict without any resource wrappers.

Parameters:	path (string) – The API-specific portion of the URL path value (string) – value to search for attr (string) – attribute to use for resource search resource (string) – plural of the object resource name; defaults to path

For example:

n = find(netclient, ‘network’, ‘networks’, ‘matrix’)

find_bulk(path, headers=None, **kwargs)¶

Bulk load and filter locally

Parameters:	path (string) – The API-specific portion of the URL path kwargs – A dict of AVPs to match - logical AND headers (dict) – Headers dictionary to pass to requests
Returns:	list of resource dicts

find_one(path, **kwargs)¶

Find a resource by name or ID

Parameters:	path (string) – The API-specific portion of the URL path
Returns:	resource dict

list(path, session=None, body=None, detailed=False, headers=None, **params)¶

Return a list of resources

GET ${ENDPOINT}/${PATH}?${PARAMS}

path is often the object’s plural resource type

Parameters:	path (string) – The API-specific portion of the URL path session (Session) – HTTP client session body – data that will be encoded as JSON and passed in POST request (GET will be sent by default) detailed (bool) – Adds ‘/details’ to path for some APIs to return extended attributes headers (dict) – Headers dictionary to pass to requests
Returns:	JSON-decoded response, could be a list or a dict-wrapped-list