[PREF]: "underscore_keys" filter

[mountainash]

Requests to the Cockpit /page APIs often return a very large results as there's
many keys and values that are rarely used. Adding an easy way to remove them would reduce the payload size, transfer time and processing. Can I suggest that a single/simple filter is added to remove the following fields (aka the “underscore_keys”):

• _hash
• _created
• _modified
• _cby
• _mby
• _state
• _id
• _meta
• _pid
• _o
• many more?

The filter could also remove the “image meta data” (as it’s also not often used). This would remove the following image child fields:

• type (the mime contains almost duplicate data)
• title (often this is just the filename)
• size
• colors
• folder

Obviously calling the new filter combined with an explicit filter:{colors:1,_state:1} would re-add those key/values.

This often results in a 30+% size saving!