Wookie REST API
This is a draft specification for the Wookie REST API. This is the API invoked by web applications for actions such as requesting an instance of a Widget, getting a list of available Widgets, and for managing participants and properties for Widget instances.
API key
Note that except where noted, all methods require the requesting application to have a valid API key issued by the Wookie server administrator.
Widget Instances
See also https://issues.apache.org/jira/browse/WOOKIE-34
An instance is identified using a combination of the following parameters:
- api_key: The key issued to a particular application
- shareddatakey: The key generated by an application representing a specific context (e.g. a page, post, section, group or other identified context)
- userid: An identifier (typically a hash rather than a real user Id) issued by an application representing the current viewer of the widget instance
- widgetid: The URI of the widget this is an instance of (optional, see servicetype below)
- servicetype: Where an individual widget is not requested by URI as above, this parameter should contain the category of widget to be instantiated, e.g. "chat"
- locale: The preferred locale of the widget, expressed using a BCP47 Language Tag
Action |
Request |
Example Response |
Description |
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GET {wookie}/widgetinstances |
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Not supported. |
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Get or Create instance |
POST {wookie}/widgetinstances {params:instance_params} |
<widgetdata> |
Either creates a new instance for the given parameters, or retrieves an already-created instance. If a new instance is successfully created, the response has a HTTP status code of 201; if an instance if successfully retrieved, a status code of 200 is returned. |
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PUT {wookie}/widgetinstances {params:instance_params, action, [cloneshareddatakey]} |
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Either stop, resume, or clone an instance, depending on the content of the action parameter. If the action is "clone", a shared data key for the clone must be provided using the "cloneshareddatakey" parameter. |
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Widgets
Action |
Request |
Example |
Description |
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GET {wookie}/widgets{?all=true, locale=language_tag} |
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Returns an XML representation of the set of available widgets. Note that this does not require an API key. If the "all=true" parameter is omitted, the list only contains the default widgets for defined service types. If a locale is specified, the returned information is localized, for example widget titles, descriptions, license information will be in the specified language where available. |
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GET {wookie}/widgets/{service_name} {?locale=language_tag} |
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Returns an XML representation of the set of widgets that belong to the given service_name. For example, all widgets categorized as "weather". (See issue WOOKIE-10). If a locale is specified, the returned information is localized, for example widget titles, descriptions, license information will be in the specified language where available. |
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GET {wookie}/widgets/{id} {?locale=language_tag} |
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Returns an XML representation of the widget with the specified id. Note that in the current release this is the actual database key; future releases should implement this using the widget URI as the id. If a locale is specified, the returned information is localized, for example widget titles, descriptions, license information will be in the specified language where available. |
Services
Action |
Request |
Example |
Description |
---|---|---|---|
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GET {wookie}/services {?locale=language_tag} |
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Returns an XML document containing all services and any widgets associated with the service category. If a locale is specified, the returned information is localized, for example widget titles, descriptions, license information will be in the specified language where available. |
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GET {wookie}/services/{service_name} {?locale=language_tag} |
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Returns an XML representation of the service specified by service_name and all the widgets associated with it. If a locale is specified, the returned information is localized, for example widget titles, descriptions, license information will be in the specified language where available. |
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POST {wookie}/services/ {param:name} |
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Creates a new service with the name provided using the name parameter. If there is already a service with this name, a http 409 (conflict) error is returned. This method requires authentication using a widgetadmin role, e.g. using HTTP Basic authentication. |
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PUT {wookie}/services/{service_name} {param:name} |
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Renames the service specified by service_name with the new name given by the name parameter. This method requires authentication using a widgetadmin role, e.g. using HTTP Basic authentication. |
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DELETE {wookie}/services/{service_name} |
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Deletes the service specified by service_name. This method requires authentication using a widgetadmin role, e.g. using HTTP Basic authentication. |
Participants
A Participant consists of a participant_display_name, participant_id, and participant_thumbnail_url. Participants are always defined in relation to a specific Widget Instance; requests affecting one Participant have no effect on Participants associated with other Widget Instances.
Representation
Participants are represented in XML as a <participants> document, containing a <participant> element for each participant, with the attributes:
- id: the participant id (not to be confused with Wookie's internal id of a participant)
- display_name: the participant display name
- thumbnail_url: the url of the thumbnail image for the participant
Action |
Request |
Example |
Description |
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GET {wookie}/participants |
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Not supported. |
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GET {wookie}/participants {params: instance_params} |
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Returns an XML representation of the Participants associated with the Widget instance specified by {instance params}. |
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GET {wookie}/participants {params:id_key, api_key} |
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Returns an XML representation of the Participants associated with the Widget instance specified by {id_key}. |
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POST {wookie}participants {params: instance_params, participant_id, participant_display_name, participant_thumbnail_url} |
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Adds a participant to the specified Widget Instance. If successful, a HTTP status code of 201 is returned. If there is already a participant that matches {participant params} for the instance, a HTTP status code of 200 is returned. |
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DELETE {wookie}/participants {params: instance_params, participant_id} |
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Deletes the specified Participant from the specified Widget Instance. |
Properties
The Properties API contains methods for both Preferences (properties affecting a single Widget Instance) and Shared Data (properties affecting sibling Widgets).
A property consists of a propertyname and propertyvalue.
Action |
Request |
Example |
Description |
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GET {wookie}/properties |
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Not supported. |
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GET {wookie}/properties {params: instance_params, propertyname} |
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Returns the value of the specified property for the specified instance. |
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POST {wookie}/properties {params: instance_params, propertyname, propertyvalue, [is_public=true]} |
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Sets a property for the specified instance. If is_public=true is set, the property set is a Shared Data entry; otherwise it is a Preference. |
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PUT {wookie}/properties {params: instance_params, propertyname, propertyvalue} |
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Updates the value of the specified property of the specified Widget Instance. |
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DELETE {wookie}/properties {params: instance_params, propertyname} |
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Deletes a property. This method returns a 404 status code if there is no matching property. |