Custom plugin and stateless mode

export const passwordlessPlugin = () => {
  return {
    id: 'passwordless',
    endpoints: {
      signIn: createAuthEndpoint(
        '/passwordless/sign-in',
        {
          method: 'POST',
          body: SignInSchema,
        },
        async (ctx) => {
          const body = ctx.body;

          const { data, error } = await authVerifyOtp(
            {
              deliveryMethod: body.email ? 'email' : 'sms',
              code: body.code,
              destination: body.email ?? body.phoneNumber,
            },
            { isPublic: true }
          );

          if (error) {
            throw new APIError('UNAUTHORIZED', {
              message: error.message ?? 'Unknown error',
            });
          }

          const tokens = {
            idToken: data.idToken,
            accessToken: data.accessToken,
            refreshToken: data.refreshToken,
            accessTokenExpires: data.accessTokenExpires,
          };

          const userId = tokens.idToken;
          const session = await ctx.context.internalAdapter.createSession(
            userId
          );

          return ctx.json({
            ok: true,
            session,
            tokens,
          });
        }
      ),
  } satisfies BetterAuthPlugin;
};