Let's say we are building a dashboard in an application in which users should be able to see analytics for there own data. If there is a user
A he should see only his/her data. Any other user's data should be isolated from user
A. This is called user sandboxing.
To do user sandboxing first we have to set a table column as secured.
Click on one of the data sources to goto data source details page.
Click on a table. From the table schema, select the field/s you want to set as secured.
After a field has been set as secured field, a secured filter should be set while generating access token. To learn this please read Access Token Documentation