Postgres Notify for Real Time Dashboards

Postgres Notify for Real Time Dashboards

If you need a simple, real-time notification of just a few specific events, consider checking it out! Using pg_notify in Postgres alongside the NOTIFY and LISTEN syntax is all that's needed to build a real time updating dashboard.

The Observer Pattern in SQL

If you’re only used to using the standards of SQL in Postgres, the NOTIFY and LISTEN commands might not be familiar. But with these two commands you can implement something akin to the Observer pattern, but in your SQL engine!

The Observer pattern allows one class of object to “listen” for incoming events and another class to send events to those listeners. This pattern is commonly used for instances where data is being updated or changed, and several possibly unrelated objects need to react to those changes.

postgresql dashboard notify listen real time

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