# List categories

Browse the public Sainsbury's grocery category taxonomy to discover categories for shelf product listings.

- Platform: [Sainsbury's Groceries](https://docs.upscrape.com/docs/platforms/sainsburys)
- Capability ID: `sainsburys.categories.list`
- Cost: 5 credits per request
- Maximum runtime: 30 seconds
- Execute endpoint: `POST https://data.upscrape.com/execute`

## Request

Use the exact public capability ID in the shared execute envelope.

```bash
curl --request POST \
  --url https://data.upscrape.com/execute \
  --header "Authorization: Bearer $UPSCRAPE_API_KEY" \
  --header "Content-Type: application/json" \
  --header "Prefer: wait=30" \
  --data '{
  "input": {},
  "capability": "sainsburys.categories.list"
}'
```

## Input

This capability accepts an empty input object.

### Example input

```json
{}
```

## Response

Successful output is returned in `results[0].data`. Raw platform output is intentionally open-ended and may evolve with the upstream source.

### Illustrative sample output

This redacted fixture is an example, not a fixed response schema.

```json
{
  "categories": [
    {
      "id": "1018771",
      "level": 0,
      "name": "Baby & toddler",
      "parent_id": null,
      "type": "Top Level Category"
    }
  ],
  "count": 1
}
```
### Illustrative output fields

Derived from the sample above for orientation only. These fields are not a fixed response schema.

| Path | Observed type | Example |
| --- | --- | --- |
| `categories` | `array` | 1 items |
| `categories` | `array` | 1 items |
| `count` | `integer` | 1 |

## Execution behavior

A `200` response completed inline. A `202` response was queued; poll `GET /jobs/{id}` until the job reaches `completed` or `failed`. Use an `Idempotency-Key` when retrying must not create a duplicate logical job.

## Related documentation

- [Authentication](https://docs.upscrape.com/docs/api/authentication)
- [Jobs and results](https://docs.upscrape.com/docs/api/jobs)
- [Errors and retries](https://docs.upscrape.com/docs/api/errors)
- [Idempotency](https://docs.upscrape.com/docs/api/idempotency)