Session is null inside of a server action when calling it from the uploadthing router

  articleCoverUploader: f({
    image: { maxFileCount: 1, maxFileSize: "2MB" },
  })
    .input(
      z.object({
        title: z.string().trim().min(1),
        tag: z.string().trim().min(1),
      }),
    )
    .middleware(async ({ input }) => {
      const session = await getServerAuthSession();

      if (session?.user.role === "USER") {
        throw new Error("Permission denied!");
      }

      return { input };
    })
    .onUploadComplete(async ({ file, metadata: { input } }) => {
      await createArticle({
        ...input,
        coverImage: file.url,
      });
    }),

export const protectedAction = createSafeActionClient({
  async middleware() {
    const session = await getServerAuthSession();

    if (!session) {
      throw new Error("Unauthorized!");
    }

    return { session };
  },
});