Node.js SDK Reference | Viewtron IP Camera API

📄️ Overview

Install and quick-start guide for the Viewtron Node.js SDK — receive camera events using the EventEmitter pattern.

Node.js HTTP server for receiving Viewtron camera webhook events — constructor options, EventEmitter events, and connected cameras.

Factory function that parses camera XML into event objects — properties, categories, and IPC vs NVR detection.

License plate recognition event data — plate number, group, vehicle attributes, IPC vs NVR differences.

Perimeter intrusion, line crossing, zone entry/exit, and loitering detection events.

Face detection event data — age, sex, glasses, mask attributes (NVR v2.0), and IPC limitations.

People and vehicle counting events — line counting, area counting, target types.

Extract snapshot images from camera events — source images, target crops, Buffers, and lazy decoding.