# Preview an ad rule

Previews an ad rule without changing anything.

```http
POST https://api.pozy.ai/v1/ads/rules/{ruleId}/preview
```

- Area: Ads / Ad Rules
- Auth: Authorization: Bearer pz_live_...

## Path parameters

- `ruleId` (string, required)

## Example request

```bash
curl -X POST "https://api.pozy.ai/v1/ads/rules/6cd4059483de62b474d02fe7/preview" \
  -H "Authorization: Bearer $POZY_API_KEY"
```

```ts
const res = await fetch("https://api.pozy.ai/v1/ads/rules/6cd4059483de62b474d02fe7/preview", {
  method: "POST",
  headers: { Authorization: `Bearer ${process.env.POZY_API_KEY}` },
});
const data = await res.json();
if (!res.ok) throw new Error(data?.error ?? `Request failed with status ${res.status}`);
console.log(data);
```

```python
import os
import requests

resp = requests.post(
    "https://api.pozy.ai/v1/ads/rules/6cd4059483de62b474d02fe7/preview",
    headers={"Authorization": f"Bearer {os.environ['POZY_API_KEY']}"},
    timeout=30,
)
resp.raise_for_status()
print(resp.json())
```

## Response 200

- `evaluatedAt`, string (date-time), required
- `today`, string (date), required
- `timezone`, string, required
- `timezoneAssumed`, boolean, required
- `currency`, string, required: Can be null
- `matched`, integer, required
- `objects`, array of object, required
  - `id`, string, required
  - `name`, string, required
  - `campaignId`, string, required: Can be null
  - `matched`, boolean, required
  - `conditions`, array of object, required
    - `metric`, string, required: One of `spend`, `impressions`, `clicks`, `conversions`, `ctr`, `cpc`, `cpm`, `cpa`, `roas`, `reach`, `frequency`
    - `window`, string, required: One of `today`, `yesterday`, `last_3d`, `last_7d`, `last_14d`, `last_30d`
    - `op`, string, required: One of `>`, `>=`, `<`, `<=`
    - `value`, number, required: At least 0
    - `actual`, number, required: Can be null
    - `met`, boolean, required

```json
{
  "evaluatedAt": "2026-10-02T09:00:00.000Z",
  "today": "2026-10-01",
  "timezone": "America/New_York",
  "timezoneAssumed": true,
  "currency": "USD",
  "matched": 1,
  "objects": [
    {
      "id": "6bfebd43ddc270f6d2c56fc5",
      "name": "Acme",
      "campaignId": "65a3737dd8b11ea61f199e6e",
      "matched": true,
      "conditions": [
        {
          "metric": "spend",
          "window": "today",
          "op": ">",
          "value": 12.5,
          "actual": 12.5,
          "met": true
        }
      ]
    }
  ]
}
```