---
title: "AttachFile"
slug: "common-vapidatatype-nesattachfile"
updated: 2026-09-17T09:30:32Z
published: 2026-09-17T09:30:32Z
canonical: "api.ncloud-docs.com/common-vapidatatype-nesattachfile"
---

> ## Documentation Index
> Fetch the complete documentation index at: https://api.ncloud-docs.com/llms.txt
> Use this file to discover all available pages before exploring further.

# AttachFile

Available in Classic and VPC

This is the file information.

## Syntax

The syntax is as follows.

```
private String fileId;
private String fileName;
private Integer fileSize;
```

## Field

The following describes the fields.

| Field | Type | Required | Description |
| --- | --- | --- | --- |
| `fileId` | String | Required | File ID |
| `fileName` | String | Required | file name |
| `fileSize` | Integer | Required | File size (byte) |