You can search or filter files using the
messages.list and
threads.list methods.
These methods accept the q parameter which supports the same
advanced search syntax as
the Gmail web-interface. This advanced syntax allows you to use search queries
to filter messages by properties such as the sender, date, or label to name a
few possibilities. For example, the following query retrieves all messages sent
by the user in January of 2014:
GET https://www.googleapis.com/gmail/v1/users/me/messages?q=in:sent after:2014/01/01 before:2014/02/01
In addition to search queries, you can also filter messages and threads by label
with the labelIds parameter. This allows you to search for messages and
threads with the specified system or user labels applied. For more information,
see the messages.list or
threads.list method reference.