---
title: "POST /storage/clear-cache"
method: POST
path: "/storage/clear-cache"
tags: ["storage"]
---

# POST /storage/clear-cache

`POST /storage/clear-cache`

Clears the cache directory contents. Requires `confirmed: true` in the request body.
Returns 400 if confirmation is missing or false.

## Request body

- ClearCacheRequest — Request payload for `POST /storage/clear-cache`.
  - `confirmed` boolean, required

## Response `200`

Cache cleared

- ClearCacheEnvelope — Canonical success envelope: `{ "data": T, "ts": <unix millis i64> }`. `ts` is `chrono::Utc::now().timestamp_millis()`, set in the webserver handler via [`ApiEnvelope::now`] (the contract carries only the type + the clock helper, not a hard dependency on when the handler reads the clock). `rename_all = "camelCase"` is a no-op for the single-word fields here but is declared for forward-compat. IMPORTANT (utoipa v4): every concrete `ApiEnvelope<X>` that needs a named OpenAPI component is declared in the `#[aliases(...)]` block below. Add a new alias line whenever a new payload type needs enveloping. NEVER register the bare `ApiEnvelope` in `components(schemas(...))` — utoipa errors on a bare generic, and an un-aliased generic inlines an anonymous schema.
  - `data` ClearCacheResponse, required — Response payload for `POST /storage/clear-cache` on success.
    - `freedBytes` integer, required
  - `ts` integer, required — Server time when the response was built (unix epoch milliseconds).

## Other responses

- `400` — Confirmation missing or false
- `500` — Internal server error

---

[API](https://skmtc.net/uniclipboard/apis/uniclipboard-daemon-api.md) · [All operations](https://skmtc.net/uniclipboard/apis/uniclipboard-daemon-api/llms.txt) · [OpenAPI document](https://skmtc-service-staging.skmtc.workers.dev/v1/apis/uniclipboard/uniclipboard-daemon-api/versions/10dd20bcf330/schema)