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Monday, May 07, 2012

CAP Ingest

The next release of Weather Message will have the ability to ingest the National Weather Service CAP feed.  CAP stands for the Common Alert Protocol.  You can learn more about CAP from this wikipedia article.

The NWS publishes an Atom feed for each state that contains a list of active weather products.  Each entry contains a link to the actual CAP formated XML.  That XML is CAP compliant and contains specific information about the weather product.

At this time, this ingest engine is pull only.  It has to poll the NWS servers for new products.  In the future, they will be pushing this data and/or CAP compliant messages will appear on the regular NWS data streams.

Why do we need another ingest method?  That is a good question.  Many government agencies are now requiring software applications to be CAP compliant.  This addition will allow Weather Message to be CAP compliant.

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