Skip to content
HOW TO

Subscribe to Data

Goal

Receive real-time data from a published topic.

Prerequisites

  • Topic exists and is being published

Steps

1. Identify Topic

Confirm the exact topic string.

2. Subscribe

Example:

=U.SUBSCRIBE("PRICES/AAPL")

3. Retrieve Value

Optionally use:

=U.GET(...)

Result

Cell updates automatically when new data is published.

Common Variations

  • Subscribing to multiple topics
  • Transforming incoming data

Troubleshooting

  • Issue: No updates
  • Cause: No active publisher
  • Fix: Confirm publishing side is active
  • ../how-to/publish-data.md
  • ../reference/u-subscribe.md