class Sentry::Rack::CaptureExceptions

def start_transaction(env, scope)
  sentry_trace = env["HTTP_SENTRY_TRACE"]
  baggage = env["HTTP_BAGGAGE"]
  options = { name: scope.transaction_name, source: scope.transaction_source, op: transaction_op }
  transaction = Sentry::Transaction.from_sentry_trace(sentry_trace, baggage: baggage, **options) if sentry_trace
  Sentry.start_transaction(transaction: transaction, custom_sampling_context: { env: env }, **options)
end