---

id: org.apache.streampipes.processors.aggregation.flink.eventcount title: Event Counter sidebar_label: Event Counter

---

Description

Counts the number of events arriving within a time window. An event is emitted every time the time window expires.

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Required input

There is no specific input required.

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Configuration

Time Window: The scale and size of the time window.

TimeWindowSize

Specifies the size of the time window.

Time Window Scale

Specifies the scale/unit of the time window. There are three different time scales to choose from: seconds, minutes or hours.

Output

{
  'timestamp': 1601301980014, 
  'count': 12
}