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PostgreSQL event triggers with Node.js(Listen / Notify)
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There are many cases where you need trigger an event in application if there is modification in database table. Usually application runs db queries to perform CRUD operation, here flow is `Application --- triggers --- DB`.
Imagine if your DB triggers an application event if there is change in DB table.
DB data value change --- triggers --- application event.
Imagine if your DB triggers an application event if there is change in DB table.
DB data value change --- triggers --- application event.
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