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Aggregating data
WSO2 DAS exposes a single API for external data sources to publish data events to it. Further, it provides configurable options to either process the data event stream inflow (in memory) for realtime analytics, to persist (in data storage) for batch analytics and/or to index for interactive analytics as shown in the below diagram.
Creating event stream definitions
The first step in aggregating data is defining an event stream by creating the event stream definition.