August 2011
Intermediate to advanced
546 pages
20h 53m
English
Content preview from Programming Social ApplicationsBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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Implementing Activity Streams
An activity comprises a number of elements such as the person creating the activity, the object being acted upon, and the target of the activity. For instance, consider the following sentence:
Mary added to a new photo into her collection.
If we break this sentence down by Activity Stream standards, we can describe the following items:
- Mary
The actor of the activity. We may create an
actorobject for Mary that links back to her profile or provides additional information about her.- photo
The object of the activity. The photo may be a structure that contains media information such as a URI, width, and height.
- collection
The target of the activity. This target may be composed of many different objects such as photos and videos. The collection can be expanded with additional information or objects.
The Activity Streams specification goes beyond defining just a few simple constructs, attempting to build out a comprehensive model for developers and companies to structure their updates and activities according to the data they contain:
{ "items" : [ { "verb": "post", "published": "2011-02-18T16:26:43Z", "generator": { "url": "http://example.com/activities-app" }, "provider": { "url": "http://providersite.com/activity-stream" }, "title": "Mary added a new photo to her album.", "actor": { "url": "http://providersite.com/mary", "objectType": "person", "id": "tag:provider.com,20110218,162643:mary", "image": { "url": "http://providersite.com/mary/image", "width": 125, "height": ...Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.