> For the complete documentation index, see [llms.txt](https://mostafaznv.gitbook.io/larupload/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://mostafaznv.gitbook.io/larupload/advanced-usage/attachment/secureids-method.md).

# SecureIds Method

The `secureIdsMethod` function allows you to specify the method to be used for generating secure IDs for the file upload path. By default, Larupload uses the `NONE` (use real IDs) format, but you can also choose from `ULID`, `UUID`, `HASHID` and `SQID` formats.

Using a secure ID format can be useful for security or privacy reasons, as it prevents the real IDs of model records from being easily discoverable.

{% hint style="info" %}
If you choose the `HASHID` format, you must also install the [`hashids`](https://github.com/vinkla/hashids) package.
{% endhint %}

{% hint style="info" %}
If you choose the `SQID` format, you must also install the [`sqids`](https://github.com/sqids/sqids-php) package.
{% endhint %}

{% hint style="warning" %}
`SecureIds` is disabled in standalone mode.
{% endhint %}

```php
<?php

namespace App\Models;

use Illuminate\Database\Eloquent\Model;
use Mostafaznv\Larupload\Enums\LaruploadSecureIdsMethod;
use Mostafaznv\Larupload\Storage\Attachment;
use Mostafaznv\Larupload\Traits\Larupload;

class Media extends Model
{
    use Larupload;

    public function attachments(): array
    {
        return [
            Attachment::make('file')
                ->secureIdsMethod(LaruploadSecureIdsMethod::ULID)
        ];
    }
}
```


---

# Agent Instructions
This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com.

## Querying This Documentation
If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter, and the optional `goal` query parameter:

```
GET https://mostafaznv.gitbook.io/larupload/advanced-usage/attachment/secureids-method.md?ask=<question>&goal=<endgoal>
```

`ask` is the immediate question: it should be specific, self-contained, and written in natural language.
`goal` is optional and describes the broader end goal you are ultimately trying to accomplish on behalf of the user. GitBook uses it to tailor the answer towards what is most useful for that goal.

The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.