id property
An identity for the request.
This is commonly used in log messages:
mylog.info("[${req.id}] something happened");
Note: the value is a String
, because its value is the Server.id from
the server (which is a String) concatenated with the request number.
By default, the server ID is the empty string, so this value looks like
a number even though it is a String. But the application can set the
Server.id to a non-empty String.
Implementation
String get id => _id;