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upload-part — AWS CLI 2.28.11 Command Reference

Uploads a part in a multipart upload.

In this operation, you provide new data as a part of an object in your request. However, you have an option to specify your existing Amazon S3 object as a data source for the part you are uploading. To upload a part from an existing object, you use the

operation.

You must initiate a multipart upload (see CreateMultipartUpload ) before you can upload any part. In response to your initiate request, Amazon S3 returns an upload ID, a unique identifier that you must include in your upload part request.

Part numbers can be any number from 1 to 10,000, inclusive. A part number uniquely identifies a part and also defines its position within the object being created. If you upload a new part using the same part number that was used with a previous part, the previously uploaded part is overwritten.

For information about maximum and minimum part sizes and other multipart upload specifications, see Multipart upload limits in the Amazon S3 User Guide .

For more information on multipart uploads, go to Multipart Upload Overview in the Amazon S3 User Guide .

• General purpose bucket permissions - To perform a multipart upload with encryption using an Key Management Service key, the requester must have permission to the kms:Decrypt and kms:GenerateDataKey actions on the key. The requester must also have permissions for the kms:GenerateDataKey action for the CreateMultipartUpload API. Then, the requester needs permissions for the kms:Decrypt action on the UploadPart and UploadPartCopy APIs. These permissions are required because Amazon S3 must decrypt and read data from the encrypted file parts before it completes the multipart upload. For more information about KMS permissions, see Protecting data using server-side encryption with KMS in the Amazon S3 User Guide . For information about the permissions required to use the multipart upload API, see Multipart upload and permissions and Multipart upload API and permissions in the Amazon S3 User Guide .

• Directory bucket permissions - To grant access to this API operation on a directory bucket, we recommend that you use the ` CreateSession https://docs.aws.amazon.com/AmazonS3/latest/API/API_CreateSession.html`__ API operation for session-based authorization. Specifically, you grant the s3express:CreateSession permission to the directory bucket in a bucket policy or an IAM identity-based policy. Then, you make the CreateSession API call on the bucket to obtain a session token. With the session token in your request header, you can make API requests to this operation. After the session token expires, you make another CreateSession API call to generate a new session token for use. Amazon Web Services CLI or SDKs create session and refresh the session token automatically to avoid service interruptions when a session expires. For more information about authorization, see ` CreateSession https://docs.aws.amazon.com/AmazonS3/latest/API/API_CreateSession.html`__ . If the object is encrypted with SSE-KMS, you must also have the kms:GenerateDataKey and kms:Decrypt permissions in IAM identity-based policies and KMS key policies for the KMS key.

  Data integrity

General purpose bucket

- To ensure that data is not corrupted traversing the network, specify the

Content-MD5

header in the upload part request. Amazon S3 checks the part data against the provided MD5 value. If they do not match, Amazon S3 returns an error. If the upload request is signed with Signature Version 4, then Amazon Web Services S3 uses the

x-amz-content-sha256

header as a checksum instead of

Content-MD5

. For more information see

Authenticating Requests: Using the Authorization Header (Amazon Web Services Signature Version 4)

.

Directory buckets - MD5 is not supported by directory buckets. You can use checksum algorithms to check object integrity.

Encryption

• General purpose bucket - Server-side encryption is for data encryption at rest. Amazon S3 encrypts your data as it writes it to disks in its data centers and decrypts it when you access it. You have mutually exclusive options to protect data using server-side encryption in Amazon S3, depending on how you choose to manage the encryption keys. Specifically, the encryption key options are Amazon S3 managed keys (SSE-S3), Amazon Web Services KMS keys (SSE-KMS), and Customer-Provided Keys (SSE-C). Amazon S3 encrypts data with server-side encryption using Amazon S3 managed keys (SSE-S3) by default. You can optionally tell Amazon S3 to encrypt data at rest using server-side encryption with other key options. The option you use depends on whether you want to use KMS keys (SSE-KMS) or provide your own encryption key (SSE-C). Server-side encryption is supported by the S3 Multipart Upload operations. Unless you are using a customer-provided encryption key (SSE-C), you don’t need to specify the encryption parameters in each UploadPart request. Instead, you only need to specify the server-side encryption parameters in the initial Initiate Multipart request. For more information, see CreateMultipartUpload . If you request server-side encryption using a customer-provided encryption key (SSE-C) in your initiate multipart upload request, you must provide identical encryption information in each part upload using the following request headers.
  • x-amz-server-side-encryption-customer-algorithm
  • x-amz-server-side-encryption-customer-key
  • x-amz-server-side-encryption-customer-key-MD5

For more information, see Using Server-Side Encryption in the Amazon S3 User Guide .

• Directory buckets - For directory buckets, there are only two supported options for server-side encryption: server-side encryption with Amazon S3 managed keys (SSE-S3) (AES256 ) and server-side encryption with KMS keys (SSE-KMS) (aws:kms ).

  Special errors

• Error Code: NoSuchUpload

  • Description: The specified multipart upload does not exist. The upload ID might be invalid, or the multipart upload might have been aborted or completed.
  • HTTP Status Code: 404 Not Found
  • SOAP Fault Code Prefix: Client

  HTTP Host header syntax

Directory buckets - The HTTP Host header syntax is `` Bucket-name .s3express-zone-id .*region-code* .amazonaws.com`` .

The following operations are related to UploadPart :

• CreateMultipartUpload
• CompleteMultipartUpload
• AbortMultipartUpload
• ListParts
• ListMultipartUploads

See also: AWS API Documentation

  upload-part
[--body <value>]
--bucket <value>
[--content-length <value>]
[--content-md5 <value>]
[--checksum-algorithm <value>]
[--checksum-crc32 <value>]
[--checksum-crc32-c <value>]
[--checksum-crc64-nvme <value>]
[--checksum-sha1 <value>]
[--checksum-sha256 <value>]
--key <value>
--part-number <value>
--upload-id <value>
[--sse-customer-algorithm <value>]
[--sse-customer-key <value>]
[--sse-customer-key-md5 <value>]
[--request-payer <value>]
[--expected-bucket-owner <value>]
[--cli-input-json | --cli-input-yaml]
[--generate-cli-skeleton <value>]
[--debug]
[--endpoint-url <value>]
[--no-verify-ssl]
[--no-paginate]
[--output <value>]
[--query <value>]
[--profile <value>]
[--region <value>]
[--version <value>]
[--color <value>]
[--no-sign-request]
[--ca-bundle <value>]
[--cli-read-timeout <value>]
[--cli-connect-timeout <value>]
[--cli-binary-format <value>]
[--no-cli-pager]
[--cli-auto-prompt]
[--no-cli-auto-prompt]

--body (streaming blob)

Object data.

NoteThis argument is of type: streaming blob. Its value must be the path to a file (e.g. path/to/file) and must not be prefixed with file:// or fileb://

--bucket (string)

The name of the bucket to which the multipart upload was initiated.

Directory buckets - When you use this operation with a directory bucket, you must use virtual-hosted-style requests in the format `` Bucket-name .s3express-zone-id .*region-code* .amazonaws.com`` . Path-style requests are not supported. Directory bucket names must be unique in the chosen Zone (Availability Zone or Local Zone). Bucket names must follow the format `` bucket-base-name –zone-id –x-s3`` (for example, `` amzn-s3-demo-bucket –usw2-az1 –x-s3`` ). For information about bucket naming restrictions, see Directory bucket naming rules in the Amazon S3 User Guide .

Access points - When you use this action with an access point for general purpose buckets, you must provide the alias of the access point in place of the bucket name or specify the access point ARN. When you use this action with an access point for directory buckets, you must provide the access point name in place of the bucket name. When using the access point ARN, you must direct requests to the access point hostname. The access point hostname takes the form AccessPointName -AccountId .s3-accesspoint.*Region* .amazonaws.com. When using this action with an access point through the Amazon Web Services SDKs, you provide the access point ARN in place of the bucket name. For more information about access point ARNs, see Using access points in the Amazon S3 User Guide .

Note

Object Lambda access points are not supported by directory buckets.

S3 on Outposts - When you use this action with S3 on Outposts, you must direct requests to the S3 on Outposts hostname. The S3 on Outposts hostname takes the form `` AccessPointName -AccountId .*outpostID* .s3-outposts.*Region* .amazonaws.com`` . When you use this action with S3 on Outposts, the destination bucket must be the Outposts access point ARN or the access point alias. For more information about S3 on Outposts, see What is S3 on Outposts? in the Amazon S3 User Guide .

--content-length (long)

Size of the body in bytes. This parameter is useful when the size of the body cannot be determined automatically.

--content-md5 (string)

The Base64 encoded 128-bit MD5 digest of the part data. This parameter is auto-populated when using the command from the CLI. This parameter is required if object lock parameters are specified.

NoteThis functionality is not supported for directory buckets.

--checksum-algorithm (string)

Indicates the algorithm used to create the checksum for the object when you use the SDK. This header will not provide any additional functionality if you don’t use the SDK. When you send this header, there must be a corresponding x-amz-checksum or x-amz-trailer header sent. Otherwise, Amazon S3 fails the request with the HTTP status code 400 Bad Request . For more information, see Checking object integrity in the Amazon S3 User Guide .

If you provide an individual checksum, Amazon S3 ignores any provided ChecksumAlgorithm parameter.

This checksum algorithm must be the same for all parts and it match the checksum value supplied in the CreateMultipartUpload request.

Possible values:

• CRC32
• CRC32C
• SHA1
• SHA256
• CRC64NVME

--checksum-crc32 (string)

This header can be used as a data integrity check to verify that the data received is the same data that was originally sent. This header specifies the Base64 encoded, 32-bit

CRC32

checksum of the object. For more information, see

Checking object integrity

in the

Amazon S3 User Guide

.

--checksum-crc32-c (string)

This header can be used as a data integrity check to verify that the data received is the same data that was originally sent. This header specifies the Base64 encoded, 32-bit

CRC32C

checksum of the object. For more information, see

Checking object integrity

in the

Amazon S3 User Guide

.

--checksum-crc64-nvme (string)

This header can be used as a data integrity check to verify that the data received is the same data that was originally sent. This header specifies the Base64 encoded, 64-bit

CRC64NVME

checksum of the part. For more information, see

Checking object integrity

in the

Amazon S3 User Guide

.

--checksum-sha1 (string)

This header can be used as a data integrity check to verify that the data received is the same data that was originally sent. This header specifies the Base64 encoded, 160-bit

SHA1

digest of the object. For more information, see

Checking object integrity

in the

Amazon S3 User Guide

.

--checksum-sha256 (string)

This header can be used as a data integrity check to verify that the data received is the same data that was originally sent. This header specifies the Base64 encoded, 256-bit

SHA256

digest of the object. For more information, see

Checking object integrity

in the

Amazon S3 User Guide

.

--key (string)

Object key for which the multipart upload was initiated.

--part-number (integer)

Part number of part being uploaded. This is a positive integer between 1 and 10,000.

--upload-id (string)

Upload ID identifying the multipart upload whose part is being uploaded.

--sse-customer-algorithm (string)

Specifies the algorithm to use when encrypting the object (for example, AES256).

NoteThis functionality is not supported for directory buckets.

--sse-customer-key (string)

Specifies the customer-provided encryption key for Amazon S3 to use in encrypting data. This value is used to store the object and then it is discarded; Amazon S3 does not store the encryption key. The key must be appropriate for use with the algorithm specified in the x-amz-server-side-encryption-customer-algorithm header . This must be the same encryption key specified in the initiate multipart upload request.

NoteThis functionality is not supported for directory buckets.

--sse-customer-key-md5 (string)

Specifies the 128-bit MD5 digest of the encryption key according to RFC 1321. Amazon S3 uses this header for a message integrity check to ensure that the encryption key was transmitted without error.

NoteThis functionality is not supported for directory buckets.

--request-payer (string)

Confirms that the requester knows that they will be charged for the request. Bucket owners need not specify this parameter in their requests. If either the source or destination S3 bucket has Requester Pays enabled, the requester will pay for corresponding charges to copy the object. For information about downloading objects from Requester Pays buckets, see Downloading Objects in Requester Pays Buckets in the Amazon S3 User Guide .

NoteThis functionality is not supported for directory buckets.

Possible values:

• requester

--expected-bucket-owner (string)

The account ID of the expected bucket owner. If the account ID that you provide does not match the actual owner of the bucket, the request fails with the HTTP status code 403 Forbidden (access denied).

--cli-input-json | --cli-input-yaml (string) Reads arguments from the JSON string provided. The JSON string follows the format provided by --generate-cli-skeleton. If other arguments are provided on the command line, those values will override the JSON-provided values. It is not possible to pass arbitrary binary values using a JSON-provided value as the string will be taken literally. This may not be specified along with --cli-input-yaml.

--generate-cli-skeleton (string) Prints a JSON skeleton to standard output without sending an API request. If provided with no value or the value input, prints a sample input JSON that can be used as an argument for --cli-input-json. Similarly, if provided yaml-input it will print a sample input YAML that can be used with --cli-input-yaml. If provided with the value output, it validates the command inputs and returns a sample output JSON for that command. The generated JSON skeleton is not stable between versions of the AWS CLI and there are no backwards compatibility guarantees in the JSON skeleton generated.

--debug (boolean)

Turn on debug logging.

--endpoint-url (string)

Override command’s default URL with the given URL.

--no-verify-ssl (boolean)

By default, the AWS CLI uses SSL when communicating with AWS services. For each SSL connection, the AWS CLI will verify SSL certificates. This option overrides the default behavior of verifying SSL certificates.

--no-paginate (boolean)

Disable automatic pagination. If automatic pagination is disabled, the AWS CLI will only make one call, for the first page of results.

--output (string)

The formatting style for command output.

• json
• text
• table
• yaml
• yaml-stream

--query (string)

A JMESPath query to use in filtering the response data.

--profile (string)

Use a specific profile from your credential file.

--region (string)

The region to use. Overrides config/env settings.

--version (string)

Display the version of this tool.

--color (string)

Turn on/off color output.

• on
• off
• auto

--no-sign-request (boolean)

Do not sign requests. Credentials will not be loaded if this argument is provided.

--ca-bundle (string)

The CA certificate bundle to use when verifying SSL certificates. Overrides config/env settings.

--cli-read-timeout (int)

The maximum socket read time in seconds. If the value is set to 0, the socket read will be blocking and not timeout. The default value is 60 seconds.

--cli-connect-timeout (int)

The maximum socket connect time in seconds. If the value is set to 0, the socket connect will be blocking and not timeout. The default value is 60 seconds.

--cli-binary-format (string)

The formatting style to be used for binary blobs. The default format is base64. The base64 format expects binary blobs to be provided as a base64 encoded string. The raw-in-base64-out format preserves compatibility with AWS CLI V1 behavior and binary values must be passed literally. When providing contents from a file that map to a binary blob fileb:// will always be treated as binary and use the file contents directly regardless of the cli-binary-format setting. When using file:// the file contents will need to properly formatted for the configured cli-binary-format.

• base64
• raw-in-base64-out

--no-cli-pager (boolean)

Disable cli pager for output.

--cli-auto-prompt (boolean)

Automatically prompt for CLI input parameters.

--no-cli-auto-prompt (boolean)

Disable automatically prompt for CLI input parameters.

To use the following examples, you must have the AWS CLI installed and configured. See the Getting started guide in the AWS CLI User Guide for more information.

Unless otherwise stated, all examples have unix-like quotation rules. These examples will need to be adapted to your terminal’s quoting rules. See Using quotation marks with strings in the AWS CLI User Guide .

The following command uploads the first part in a multipart upload initiated with the create-multipart-upload command:

aws s3api upload-part --bucket amzn-s3-demo-bucket --key 'multipart/01' --part-number 1 --body part01 --upload-id  "dfRtDYU0WWCCcH43C3WFbkRONycyCpTJJvxu2i5GYkZljF.Yxwh6XG7WfS2vC4to6HiV6Yjlx.cph0gtNBtJ8P3URCSbB7rjxI5iEwVDmgaXZOGgkk5nVTW16HOQ5l0R"

The body option takes the name or path of a local file for upload (do not use the file:// prefix). The minimum part size is 5 MB. Upload ID is returned by create-multipart-upload and can also be retrieved with list-multipart-uploads. Bucket and key are specified when you create the multipart upload.

Output:

{
    "ETag": "\"e868e0f4719e394144ef36531ee6824c\""
}

Save the ETag value of each part for later. They are required to complete the multipart upload.

ServerSideEncryption -> (string)

The server-side encryption algorithm used when you store this object in Amazon S3 or Amazon FSx.

NoteWhen accessing data stored in Amazon FSx file systems using S3 access points, the only valid server side encryption option is aws:fsx .

ETag -> (string)

Entity tag for the uploaded object.

ChecksumCRC32 -> (string)

The Base64 encoded, 32-bit

CRC32 checksum

of the object. This checksum is only be present if the checksum was uploaded with the object. When you use an API operation on an object that was uploaded using multipart uploads, this value may not be a direct checksum value of the full object. Instead, it’s a calculation based on the checksum values of each individual part. For more information about how checksums are calculated with multipart uploads, see

Checking object integrity

in the

Amazon S3 User Guide

.

ChecksumCRC32C -> (string)

The Base64 encoded, 32-bit

CRC32C

checksum of the object. This checksum is only present if the checksum was uploaded with the object. When you use an API operation on an object that was uploaded using multipart uploads, this value may not be a direct checksum value of the full object. Instead, it’s a calculation based on the checksum values of each individual part. For more information about how checksums are calculated with multipart uploads, see

Checking object integrity

in the

Amazon S3 User Guide

.

ChecksumCRC64NVME -> (string)

This header can be used as a data integrity check to verify that the data received is the same data that was originally sent. This header specifies the Base64 encoded, 64-bit

CRC64NVME

checksum of the part. For more information, see

Checking object integrity

in the

Amazon S3 User Guide

.

ChecksumSHA1 -> (string)

The Base64 encoded, 160-bit

SHA1

digest of the object. This will only be present if the object was uploaded with the object. When you use the API operation on an object that was uploaded using multipart uploads, this value may not be a direct checksum value of the full object. Instead, it’s a calculation based on the checksum values of each individual part. For more information about how checksums are calculated with multipart uploads, see

Checking object integrity

in the

Amazon S3 User Guide

.

ChecksumSHA256 -> (string)

The Base64 encoded, 256-bit

SHA256

digest of the object. This will only be present if the object was uploaded with the object. When you use an API operation on an object that was uploaded using multipart uploads, this value may not be a direct checksum value of the full object. Instead, it’s a calculation based on the checksum values of each individual part. For more information about how checksums are calculated with multipart uploads, see

Checking object integrity

in the

Amazon S3 User Guide

.

SSECustomerAlgorithm -> (string)

If server-side encryption with a customer-provided encryption key was requested, the response will include this header to confirm the encryption algorithm that’s used.

NoteThis functionality is not supported for directory buckets.

SSECustomerKeyMD5 -> (string)

If server-side encryption with a customer-provided encryption key was requested, the response will include this header to provide the round-trip message integrity verification of the customer-provided encryption key.

NoteThis functionality is not supported for directory buckets.

SSEKMSKeyId -> (string)

If present, indicates the ID of the KMS key that was used for object encryption.

BucketKeyEnabled -> (boolean)

Indicates whether the multipart upload uses an S3 Bucket Key for server-side encryption with Key Management Service (KMS) keys (SSE-KMS).

RequestCharged -> (string)

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