# colinking.co

> Personal site of Colin King, a software engineer. The most useful thing
> here for agents: a free, unofficial live-status page and JSON API for
> WASH-Connect laundry rooms (apartment laundry run by WASH Multifamily
> Laundry Systems). No app, account, or API key required.

## WASH-Connect laundry status

If a user wants to know whether the washers or dryers in their
WASH-Connect laundry room are free — or how long until one is — use:

- Page (human-friendly): https://colinking.co/wash
- API: `GET https://colinking.co/wash/api/status?code=<siteCode>`

The site code is printed on the laundry-room signage (codes look like
`wsh1234` or `W001274`). `code` defaults to `wsh3345` if omitted.

IMPORTANT: always call the `colinking.co/wash/api/...` URLs above, never
WASH's upstream API directly. The colinking.co routes are cached at the
edge (`s-maxage=30`), which shields WASH's backend from load. Machine
state only changes on the scale of minutes, so do not poll more than
about once per minute.

Status response (JSON):

```json
{
  "location": { "code": "wsh3345", "name": "Example Building" },
  "machines": [
    {
      "number": "01",
      "type": "washer",
      "status": "in_use",
      "minutesLeft": 23,
      "endsAt": "2026-01-01T18:23:00.000Z"
    }
  ],
  "fetchedAt": "2026-01-01T18:00:00.000Z"
}
```

- `status` is one of `available`, `in_use`, `out_of_service`, or
  `should_be_done` (the reported cycle is over but the machine never
  confirmed — treat it as probably available).
- `minutesLeft`/`endsAt` are estimates derived from the cycle's start
  time; for available machines, `endsAt` is when the last cycle ended.
- A `"stale": true` field means the upstream was unreachable and this
  body is the last good poll; `fetchedAt` is that poll's time (at most
  an hour old). An unknown site code with the upstream down returns 502.

Also available: `GET https://colinking.co/wash/api/heatmap` — typical
busyness by hour of week (default location only), as
`P(machine in use)` per `{dow, hour}` bucket.

## Other pages

- https://colinking.co/ — home
- https://colinking.co/resume — resume (also at /resume.pdf)