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doesn't return the content from matching shares, only the metadata
Parameters
project_id (optional): the id of a share of type "infinite_project_config", this will filter the search to only communities active in this project. See projects documentation for more information
Example
http://infinite.ikanow.com/api/social/share/search
http://infinite.ikanow.com/api/social/share/search?type=feed
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