I'm building a REST API.
My users have created_at and updated_at fields.
These fields hold strings that look like this:
"2014-12-29T12:30:21+0000"
When I create a user, I set created_at to the current date.
However, I'm not sure if I should do the same for updated_at.
Technically, the user has never been updated.
But it seems weird for there not to be something there.
Should I leave the value NULL, make it the same as created_at, or do something else?
Creating is updating state (from nothing to something) so it can safely be considered an "update".
I would set the updated time on creation, if for no other reason than you don't have to cater for null values (ever).