DAP4: XML Data Service: Difference between revisions

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Revision as of 17:38, 5 April 2012

Overview

Return requested data in an XML document.

Request

The XML Data Service is invoked by appending the suffix .xdap to the file part of the dataset's referent (aka base) URL and then dereferencing the new URL. The XML Data Service accepts an optional query string (constraint expression), If present a query string (constraint expression) will be handled as it would for Data Service request.

Response

The XML Data response is a repackaging of the data requested from underlying data resource into anXML document that is based on the DAP4 Dataset document. Essentially the Dataset XML document is marked up to add data values.

Errors

DAP4: Error Response.