Mintplex-Labs/anything-llm · error

ruleUpdates must be an array.

Error message

ruleUpdates must be an array.

What it means

Type guard in the PUT /model-routers/:id/rules/reorder endpoint: the request body's ruleUpdates field is not an Array, so the reorder operation has no valid list of {id, priority} updates and is rejected with 400.

Source

Thrown at server/endpoints/modelRouter.js:147

        ModelRouterService.invalidateRouter(routerId);
        return response.status(200).json({ rule });
      } catch (e) {
        console.error(e);
        response.sendStatus(500);
      }
    }
  );

  app.put(
    "/model-routers/:id/rules/reorder",
    [validatedRequest, flexUserRoleValid([ROLES.admin])],
    async (request, response) => {
      try {
        const { id } = request.params;
        const { ruleUpdates } = reqBody(request);
        if (!Array.isArray(ruleUpdates))
          return response
            .status(400)
            .json({ success: false, error: "ruleUpdates must be an array." });

        const { success, error } =
          await ModelRouterRule.reorderRules(ruleUpdates);
        if (error) return response.status(400).json({ success, error });
        ModelRouterService.invalidateRouter(Number(id));
        return response.status(200).json({ success });
      } catch (e) {
        console.error(e);
        response.sendStatus(500);
      }
    }
  );

  app.put(
    "/model-routers/:id/rules/:ruleId",
    [validatedRequest, flexUserRoleValid([ROLES.admin])],
    async (request, response) => {

View on GitHub (pinned to 3aec848f28)

Solutions

1. Send ruleUpdates as an array of rule update objects.
2. Verify the request body is valid JSON with the correct shape.

When it happens

Trigger: Thrown at server/endpoints/modelRouter.js:147 when the library encounters an invalid state.

Common situations: Bulk rule update called with ruleUpdates that is not an array.

AI-assisted analysis of Mintplex-Labs/anything-llm@3aec848f28 (2026-08-18). Data as JSON: /api/errors/84b8d0d742fd33c7. Report an issue: GitHub.