# Data Policy - English

Pastebox supports data policies for controlling how long uploaded content is stored and under what conditions it is deleted.

You can select a data policy by adding the `data-policy` header when uploading with `curl`.

## Supported Policies

| Policy | Header |
|--------|--------|
| 30-day storage | None |
| Permanent storage | data-policy: permanent |
| One-time storage | data-policy: once |
| Custom expiration | data-policy: 30m / 12h / 7d |

## 30-Day Storage
This is the default policy that works without a header. Files are kept for 30 days and then automatically deleted.

```bash
curl -F "file=@test.txt" http://localhost:8080
```

## Permanent Storage
Files are stored permanently without automatic deletion and remain available until manually deleted. Open the private manage URL returned at upload time and use its delete button, or send an authenticated `DELETE` request to the management API.

```bash
curl -H "data-policy: permanent" -F "file=@test.txt" http://localhost:8080
```

## One-Time Storage
After the link is issued, the file is automatically deleted after the first successful view. This can be used for sharing one-time content or sensitive content in environments where copying is not possible.

```bash
curl -H "data-policy: once" -F "file=@test.txt" http://localhost:8080
```

## Custom Expiration
Use a duration value in the `data-policy` header to set a custom expiration up to 30 days.

Supported units:

- `m`: minutes
- `h`: hours
- `d`: days

Examples:

```bash
curl -H "data-policy: 30m" -F "file=@test.txt" http://localhost:8080
curl -H "data-policy: 12h" -F "file=@test.txt" http://localhost:8080
curl -H "data-policy: 7d" -F "file=@test.txt" http://localhost:8080
```

The value must be a positive whole number and must not exceed 30 days. Values such as `0m`, `31d`, `721h`, `1w`, and `1.5h` are rejected with `400 Bad Request`.