# `GET /health/latency`

Protected. Requires a valid session cookie (`credentials: 'include'`).

Health latency history

Returns the database healthcheck latency (ms) as three series, each oldest first with unix-ms timestamps. `raw` holds the per-minute samples of the last 3 hours; `avg` and `max` hold the 30-minute aggregates (over the last 4 hours of samples) kept for 30 days. Requires a valid JWT; no company selection needed.

## Response `200`

Latency series

```json
{
  "raw": [
    {
      "timestamp": 1,
      "value": 1
    }
  ],
  "avg": [
    {
      "timestamp": 1,
      "value": 1
    }
  ],
  "max": [
    {
      "timestamp": 1,
      "value": 1
    }
  ]
}
```

## Errors

| Status | Description |
|--------|-------------|
| 401 | Unauthorized |
| 500 | Redis read failed |

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