Foursquare Cartridge - Configuration Guidelines and Implementation Notes The Sponger cartridge for UNKNOWN tag: http://www.w3.org/1999/xhtml:nowikiFoursquare is written to the UNKNOWN tag: http://www.w3.org/1999/xhtml:nowikiFoursquare REST API. In order to use this API, the cartridge must be configured with a Foursquare OAuth token. To obtain an OAuth token, register the Sponger as a Foursquare application. Any application name can be used, for example 'Sponger_{your-virtuoso-host}'. However the OAuth redirect URL must point to the /foursquare_oauth virtual path defined when the Cartridges VAD is installed, e.g. http://{your-virtuoso-host:port}/foursqaure_oauth/foursqaure_access_token.vsp. Registering the Sponger as a Foursquare Application Before you can obtain access tokens for the cartridge, you first need to register the Sponger as a Foursquare application. Register the Sponger using the UNKNOWN tag: http://www.w3.org/1999/xhtml:nowikiFoursquare My OAuth Consumers.

Click "Register a New Consumer". Specify application name, application website, callback url:

You have successfully registered your Sponger instance as a Foursquare application and you have a Client ID and a Client Secret on the UNKNOWN tag: http://www.w3.org/1999/xhtml:nowikiFoursquare My OAuth Consumers:

Using the instruction from UNKNOWN tag: http://www.w3.org/1999/xhtml:nowikiFoursquare API get the Oath token for your application:

Now go to your local Conductor at http://your-virtuoso-host:port/conductor Go to Linked Data -> Sponger -> Extractor Cartridges:

Find "Foursquare" and click on its link in order to edit its properties. Enter the OAuth token noted in the cartridge's "Options" field as values for options oauth_token:

Click 'Update" to save the "Options" settings. View the Retrieved Data The cartridge is configured to trigger on URI pattern http*://.*.foursquare.com/.*. It is assumed that a Foursquare venue URL will be used as the starting point for sponging their profile: http://uriburner.com/about/html/{your-Foursquare-venue-url}. For example: Access http://uriburner.com/about/html/https://foursquare.com/v/lexington-green/4bab8662f964a5203fb03ae3 :

Click the primary topic value link "Lexington Green":

Alternative Follow-Your-Nose friendly view We can take a look at the /fct variant of the primaryTopic object page: Click the Facets link from the footer section "Alternative Linked Data Views" of the page from above:

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