So far, there have been three general implementation scenarios discussed on the Activity Streams email list. For each of these scenarios, there is a "publisher" of Activity Streams data and a "consumer" of Activity Streams data.
With each scenario description below is a listing of implementors. If you want to list another implementor, please follow the instructions on the process pwiki page.
1. Publishes an ActivityStreams-formatted feed (HTTP GET)
In this scenario, the publisher emits a feed in ActivityStreams format and the consumer reads the feed (sometimes called "polling").
A "conversation" in this scenario might look like:
Consumer: What activities has John done on your site?
Publisher: John posted status today and posted photos yesterday (data is in Activity Streams format)
End-to-end implementations:
2. Push-based publishing of activities (HTTP POST)
In this scenario, a publisher pushes Activity Streams data to a consumer and the consumer recieves the data:
A "conversation" in this scenario might look like:
Publisher: John posted a new blog entry (data is in Activity Streams format)
Consumer: Got it, thanks. (The consumer might just reply with an affirmative response or might reply with how it understands the data (in Activity Streams format) )
| Publishers (alpha, linked* to ASms wiki page) |
Consumers (alpha, linked* to ASms wiki page) |
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3. Real-time activity stream
In this scenario, a publisher emits a stream of data in ActivityStreams format and a consumer reads this via a persistent connection. In some cases, the consumer may periodically call back to the publisher to adjust subscription parameters for the stream.
A "conversation" in this scenario might look like:
Consumer: Tell me about all public activities on your service for users near Chicago, IL, USA
Publisher: John posted a blog entry at 9:57am (in Activity Streams format)
Publisher: Martha shared a video at 9:58am (In Activity streams format)
Publisher: John posted a bookmark at 10:00am (In Activity Streams format)
...
| Publishers (alpha, linked* to ASms wiki page) |
Consumers (alpha, linked* to ASms wiki page) |
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MySpace
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* Links are to the "<service-name>-Activity-Streams" wiki pages on http://wiki.ActivityStrea.ms . Please maintain this consistency.
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