Function getRedirectStatus

packages/next/src/lib/redirect-status.ts:5–15

(route: {
  statusCode?: number
  permanent?: boolean
})

export const allowedStatusCodes = new Set([301, 302, 303, 307, 308])

export function getRedirectStatus(route: {
  statusCode?: number
  permanent?: boolean
}): number {
  return (
    route.statusCode ||
    (route.permanent
      ? RedirectStatusCode.PermanentRedirect
      : RedirectStatusCode.TemporaryRedirect)
  )
}

// for redirects we restrict matching /_next and for all routes
// we add an optional trailing slash at the end for easier