---
title: "Set an application's run mode."
method: GET
path: "/WebApp/set_mode"
tags: ["WebApp", "Web Apps"]
---

# Set an application's run mode.

`GET /WebApp/set_mode`

This function sets an application's run mode and restarts the
application so the new mode takes effect.

**Important**:

  This function only applies to applications in the `server`
  category. Calling it on a `static` application fails with the
  `invalid_category` error category.

## Query parameters

- `mode` 'production' | 'development', required
- `name` string, required

## Response `200`

HTTP Request was successful.

- object
  - `apiversion` integer — The version of the API.
  - `func` string — The name of the method called.
  - `module` string — The name of the module called.
  - `result` object
    - `data` object
      - `mode` 'production' | 'development' — The application's run mode after the change.
      - `restarted` 1 — Whether the application restarted to apply the new mode. * `1` — Restarted.
    - `errors` string[], nullable — List of errors if the API failed.
    - `messages` string[], nullable — List of messages generated by the API.
    - `metadata` object
      - `error_category` 'invalid_category', nullable — The machine-readable failure category. Only present when `status` is `0`. * `invalid_category` — The action does not apply to the application's category.
    - `status` 0 | 1 — - `1` - Success. - `0` - Failed. Check the `errors` field for more details.
    - `warnings` string[], nullable — List of warnings generated by the API. Warnings describe non-critical failures or other problematic conditions noted while running a API.

---

[API](https://skmtc.net/cpanel/apis/cpanel-uapi.md) · [All operations](https://skmtc.net/cpanel/apis/cpanel-uapi/llms.txt) · [OpenAPI document](https://skmtc-service-staging.skmtc.workers.dev/v1/apis/cpanel/cpanel-uapi/revisions/632e2f8e6d04/schema)