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For retrieving the Twitter stream we connect with the Streaming API to the endpoint of Twitter and receive a never ending tweet stream. As Twitter delivers the tweets as [http://www.json.org/ JSON] objects the objects has to be
converted into XML fragments. For this purpose the parse function of the [[JSON Module|XQuery JSON Module]] is used. The examples [[#Example Tweet (JSON)|tweet as JSON]] and [[#Example Tweet (XML)|tweet as XML]] show thatthe each tweet is streamed as an object containing the tweet message itself and over 60 data fields (for further information see the [https://dev.twitter.com/docs/platform-objects fields description]). For storing the tweets including the meta-data, we use the standard ''insert'' function of [[Updates|XQuery Update]].
=Twitters' Streaming Data=
