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# Integrating Intelligence with ESM

To enable ESM to receive the analysed entities and alerts information from Intelligence, you need to install and configure the ArcSight REST FlexConnectors.

The REST FlexConnector provides a configurable method to collect events from Intelligence and send them to ESM. Intelligence’s Alerts and Entities APIs serve as the REST API endpoints from which the REST FlexConnectors collect data.

The REST FlexConnectors use the OAuth2 authentication to get permission to receive events from Intelligence. The events collected by the FlexConnectors are in JSON format.

With the help of one JSON parser file each for Alert data and Entities data, these events are converted into a format that can be understood and received by ESM.