Examples of Push APIs

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Looking for examples of Push APIs, other than the websocket or the comet or the pubsub. Need examples specifically for communication between two systems (versus Client/Browser - Server). In other words it doesn't have to be over HTTP.

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1
Arvin On

PubSubHubbub A simple, open, server-to-server web-hook-based pubsub (publish/subscribe) protocol as an extension to Atom and RSS.

They also have a wiki page for comparing different protocols.

2
kelloti On

There are several somewhat evolved APIs for this. Here is one for jQuery. Here is a blog post describing how to implement this in ASP.NET. It's a difficult framework to idea due to that pesky constant connectivity thing.