Mintplex-Labs/anything-llm · error

Router ID is required.

Error message

Router ID is required.

What it means

Validation error propagated from ModelRouterRule.create on POST /model-routers/:id/rules/new: the parent router id could not be resolved to an existing router, so the rule has nothing to attach to and creation is refused.

Solutions

1. Provide the router ID in the request.
2. Obtain a valid router ID from the router list.

When it happens

Trigger: Thrown at server/endpoints/modelRouter.js:126 when the library encounters an invalid state.

Common situations: Calling a rule-management endpoint without a router ID.

AI-assisted analysis of Mintplex-Labs/anything-llm@3aec848f28 (2026-08-18). Data as JSON: /api/errors/4f19a89b576bf7dd. Report an issue: GitHub.

Appendix: source

Thrown at server/endpoints/modelRouter.js:126

      }
    }
  );

  app.post(
    "/model-routers/:id/rules/new",
    [validatedRequest, flexUserRoleValid([ROLES.admin])],
    async (request, response) => {
      try {
        const { id } = request.params;
        const user = await userFromSession(request, response);
        const data = reqBody(request);
        const routerId = Number(id);
        const { rule, error } = await ModelRouterRule.create(
          routerId,
          data,
          user?.id || null
        );
        if (error) return response.status(400).json({ rule, error });

        await Telemetry.sendTelemetry("model_router_rule_created");
        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);

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