This example shows a live-updating fluid monitoring dashboard, displaying recent sensor readings for multiple tanks. The visualization uses a JavaScript backend with Knex.js to insert incoming data into a database, and a frontend that likely renders real-time charts or gauges for parameters like dissolved oxygen (DO) from the specified location. The code demonstrates the API endpoint where a POST request with a reading value is parsed and stored, triggering an update to the visual display. It uses the Express framework alongside Knex.js for database operations, while the frontend appears to employ SVG-based graphics for the interactive data representation. The demo focuses on the integration between data ingestion and dynamic visual feedback.