Commercial functionality and product extensibility
ArcGIS GeoEvent Extension for Server includes out-of-the-box connectors for common data formats (text, RSS, Esri feature JSON, and generic JSON) and data communication channels (system file, HTTP, TCP, UDP, WebSocket, and Esri feature service).
In addition to the out-of-the-box functionality, the ArcGIS GeoEvent Gallery provides additional connectors for a variety of third-party devices and subscription data feeds. Some examples that highlight the extensibility of the GeoEvent Extension include connectors for in-vehicle GPS devices, social media feeds such as Twitter and Instagram, and Big Data support for MongoDB and Hadoop.
If you need to connect to a data feed and an existing connector is not available, you can create a custom connector using the GeoEvent Extension Software Development Kit.
See Extending the GeoEvent Extension to learn more about developing custom components.