---
title: "UploadPart"
slug: "ncloudstorage-uploadpart"
updated: 2026-09-17T10:12:27Z
published: 2026-09-17T10:12:27Z
canonical: "api.ncloud-docs.com/ncloudstorage-uploadpart"
---

> ## 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.

# UploadPart

Available in Classic and VPC

Upload a part of a multipart upload. To upload, you must first create a multipart upload ID by calling the CreateMultipartUpload API.

## Request

This section describes the request format. The method and URI are as follows:

| Method | URI |
| --- | --- |
| PUT | /{Key} |

### Request headers

The following describes the request headers.

              Note

              

For information about the headers common to all Ncloud Storage APIs, see [Ncloud Storage request headers](/docs/en/storage-ncloudstorage#%EC%9A%94%EC%B2%AD%ED%97%A4%EB%8D%94).

| Field | Required | Description |
| --- | --- | --- |
| `x-amz-server-side-encryption-customer-algorithm` | Optional | User encryption algorithm (AES256) |
| `x-amz-server-side-encryption-customer-key` | Optional | User-provided encryption key |
| `x-amz-server-side-encryption-customer-key-MD5` | Optional | User-provided encryption key's MD5 value |

### Request path parameters

You can use the following path parameters with your request:

| Field | Type | Required | Description |
| --- | --- | --- | --- |
| `Key` | String | Required | Object name - See [CreateMultipartUpload](/docs/en/ncloudstorage-createmultipartupload). |

### Request query parameters

You can use the following query parameters with your request:

| Field | Type | Required | Description |
| --- | --- | --- | --- |
| `partNumber` | Integer | Required | Part number - 1-10,000 |
| `uploadId` | String | Required | Multipart upload ID - See [CreateMultipartUpload](/docs/en/ncloudstorage-createmultipartupload). |

### Request example

The request example is as follows:

```
PUT /object.zip?partNumber=1&uploadId=2c5f5e8c-****-****-****-9cc2c468d0e9 HTTP/1.1
Host: bucket.kr.ncloudstorage.com
Content-Length: 300

<object data>
```

## Response

This section describes the response format.

### Response headers

For information about the headers common to all Ncloud Storage APIs, see [Ncloud Storage response headers](/docs/en/storage-ncloudstorage#%EC%9D%91%EB%8B%B5%ED%97%A4%EB%8D%94).

### Response status codes

For information about the HTTP status codes common to all Ncloud Storage APIs, see [Common Ncloud Storage response status codes](/docs/en/storage-ncloudstorage#%EC%9D%91%EB%8B%B5%EC%83%81%ED%83%9C%EC%BD%94%EB%93%9C).

### Response example

The response example is as follows:

```
HTTP/1.1 200 OK
```