Here's an example output:
13:25:29 log.1 | method=GET path=/users/auth/github/callback
format=html controller=users/omniauth_callbacks action=github
status=302 duration=829.94 view=0.00 db=25.57
I believe you are using the lograge gem for logging. There, the
location field is set if the request was answered with an HTTP redirect (i.e. an
HTTP 301 or
HTTP 302). The field contains the full URL where the user was forwarded to.
The field is called
location because that's the name of the HTTP header containing this field in the response.