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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. In the examples section both versions are shown ([[#Example Tweet (JSON)|tweet as JSON]] and [[#Example Tweet (XML)|tweet as XML]]. For storing the tweets including the meta-data, we use the standard ''insert'' function of [[Updates|XQuery Update]].
=Twitters' Streaming Data=
Each tweet object in the data stream contains the tweet message itself and over 60 data fields (for further information see the [https://dev.twitter.com/docs/platform-objects fields description]). In the examples section ([[#Example Tweet (JSON)|tweet as JSON]] and [[#Example Tweet (XML)|tweet as XML]] show .
The following section shows the amount of data, that is delivered by the Twitter Streaming API to the connected endpoints with the 10% gardenhose access per hour
on the 6th of the months February, March, April and May. It is the pure public live stream without any filtering applied.
