The Smartlook session URL can be seen in the Smartlook
section inside every crash report.
let config = BugsnagConfiguration.loadConfig()
config.addOnSendError { (event) -> Bool in
let sessionUrl = Smartlook.instance.user.session.urlWithTimestamp
event.addMetadata(sessionUrl, key:"Smartlook dashboard session URL")
return true
}
Bugsnag.start(with: config)

Full Bugsnag documentation with examples can be found on the official website.