Activity Streams (format)

Activity Streams is an open format specification for activity stream protocols, which are used to syndicate activities taken in social web applications and services, similar to those in Facebook's, Instagram's, and Twitter's.[1]

Activity Streams
Filename extension
.json
Internet media type
application/activity+json
Type of formatWeb syndication
Extended fromJSON-LD
StandardsW3C Activity Streams
Websiteactivitystrea.ms

The standard provides a general way to represent activities. For instance, the sentence "Jack added Hawaii to his list of places to visit" would be represented in ActivityStreams as actor:jack, verb:add, object:Hawaii, target:placestovisit.

Implementors of the activity Activity Streams draft include Gnip, Stream, Stream Framework, and Pump.io.

The largest open source library (based on watchers) is Stream Framework, the authors of Stream Framework also run getstream.io. In addition there is a trend of SOA (service-oriented architecture) where third parties power this type of functionality.

Example

 
{
  "@context": "https://www.w3.org/ns/activitystreams",
  "summary": "A note",
  "type": "Note",
  "content": "My dog has fleas."
}

See also

References
  1. "Facebook opens activity streams; offers API to developers". Archived from the original on 2009-04-30. Retrieved 2009-04-28. Facebook opens activity streams; offers API to developers New Facebook app lets users see real-time streams running on desktops or cell phones


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