# Eventbridge

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**EventBridge**

* What it is: A Serverless Event Bus. It is the "glue" that connects different applications.
* Example: "When a file lands in S3 (Event), trigger a Lambda function (Target) to process it."
* Data Engineer Note: This is the modern successor to "CloudWatch Events." You will use this constantly to trigger event-driven pipelines.
* Equivalents:
  * GCP: Eventarc
  * Azure: Azure Event Grid

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