Misplaced Pages

Activity Streams

Filename extension	.json
Internet media type	application/activity+json
Type of format	Web syndication
Extended from	JSON-LD
Standards	W3C Activity Streams
Website	activitystrea.ms

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.

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 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.

GeoSPARQL provides OWL and RDFS alignments to the Activity Streams vocabulary.

Example

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

See also

• ActivityPub

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
2. OGC (2024-01-29). "OGC GeoSPARQL - A Geographic Query Language for RDF Data". Retrieved 2024-08-30.

External links

• Official website
• Activity Streams 2.0, W3C recommendation 23 May 2017

This Internet-related article is a stub. You can help Misplaced Pages by expanding it.

• v
• t
• e

• Atom (web standard)
• Internet stubs