---
title: "complete-multipart-upload"
slug: "cli-objectstorage-api-level-complete-multipart-upload"
updated: 2026-10-08T05:02:32Z
published: 2026-10-08T05:02:32Z
canonical: "cli.ncloud-docs.com/cli-objectstorage-api-level-complete-multipart-upload"
---

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

# complete-multipart-upload

Create an object by combining parts that have already been uploaded using multipart upload, and complete the multipart upload.

## Syntax

The `complete-multipart-upload` syntax is as follows:

```
aws s3api complete-multipart-upload \
    --bucket <bucket> \
    --key <key> \
    --upload-id <upload-id> \
    --multipart-upload <multipart-upload> \
    [--mpu-object-size <mpu-object-size>] \
    [--sse-customer-algorithm <sse-customer-algorithm>] \
    [--sse-customer-key <sse-customer-key>] \
    [--sse-customer-key-md5 <sse-customer-key-md5>] \
    --endpoint-url <endpoint-url>
```

## Options

This section describes the options available when running `complete-multipart-upload`.

### Required options

The following options are required for `complete-multipart-upload`.

| Options | Type | Required | Description |
| --- | --- | --- | --- |
| `--bucket` | String | Required | Bucket name |
| `--key` | String | Required | Object name |
| `--upload-id` | String | Required | Multipart upload ID - See [list-multipart-uploads](/docs/en/cli-objectstorage-api-level-list-multipart-uploads). |
| `--multipart-upload` | String | Required | List of parts to combined - Enter the `ETag` and `PartNumber` for each uploaded part in JSON format. - You can specify the path to the JSON file using the `file://` prefix. |

### Optional options

These are the optional options for `complete-multipart-upload`. Options that are not specified will use their default values.

| Options | Type | Required | Description |
| --- | --- | --- | --- |
| `--mpu-object-size` | Long | Optional | Expected total object size for the multipart upload request - If the specified object size differs from the actual size, an HTTP 400 `InvalidRequest` error occurs. |
| `--sse-customer-algorithm` | String | Optional | User encryption algorithm (AES256) |
| `--sse-customer-key` | String | Optional | User-provided encryption key |
| `--sse-customer-key-md5` | String | Optional | User-provided encryption key's MD5 value |

### Common options

For information about the options common to all `aws` subcommands, see [Object Storage options](/docs/en/guide-objectstorage#%EC%98%B5%EC%85%98).

## Examples

If the request to complete a multipart upload is successful, the identification information and location information for the created object are returned.

### Command

The command example is as follows:

```
aws s3api complete-multipart-upload --bucket my-test-bucket \
    --key large.bin \
    --upload-id {upload_id} \
    --multipart-upload file://mpu.json \
    --endpoint-url=https://kr.object.ncloudstorage.com
```

- mpu.json example

```
{
  "Parts": [
    {
      "PartNumber": 1,
      "ETag": "\"8f4e33f3dc3e414ff94e5fb6905cba8c\""
    },
    {
      "PartNumber": 2,
      "ETag": "\"57325bca2c5c2cb6adf5aa9a66fb4e2d\""
    },
    ...
  ]
}
```

### Output

The output example is as follows:

```
{
    "Location": "http://kr.object.ncloudstorage.com/my-test-bucket/large.bin",
    "Bucket": "my-test-bucket",
    "Key": "large.bin",
    "ETag": "\"1b3e2fdb09fcd6df94df5567914a17d4-2\""
}
```