Adding a response filter
Response filters are filters that are invoked when a response is received from the database server. Normally, the response will simply be forwarded to the client, but you can create one or more filter to interfere with that:
you can change the response, for instance change a result set
you can notify an other system about the response, perhaps for security reasons, or for logging purposes
you can skip the response, for instance a specific row in a result set
you can replace the response with your own response, for instance by inserting one or more rows in a result set, or by replacing a result set with an error message
Creating a response filter
In the Gallium Data admin app, open your project and click the New Response Filter button. Select the type of filter. In this example, let's just select Query filter - Postgres: