Function getRouter

packages/start-server-core/src/createStartHandler.ts:469–499

()

      // Memoized router getter
      const getRouter = async (): Promise<AnyRouter> => {
        if (router) return router

        router = await entries.routerEntry.getRouter()

        let isShell = IS_SHELL_ENV
        if (IS_PRERENDERING && !isShell) {
          isShell = request.headers.get(HEADERS.TSS_SHELL) === 'true'
        }

        const history = createMemoryHistory({
          initialEntries: [href],
        })

        router.update({
          history,
          isShell,
          isPrerendering: IS_PRERENDERING,
          origin: router.options.origin ?? origin,
          ...{
            defaultSsr: requestStartOptions.defaultSsr,
            serializationAdapters: [
              ...requestStartOptions.serializationAdapters,
              ...(router.options.serializationAdapters || []),
            ],
          },
          basepath: ROUTER_BASEPATH,
        })

        return router
      }

      // Check for server function requests first (early exit)
      if (SERVER_FN_BASE && url.pathname.startsWith(SERVER_FN_BASE)) {