import { Command as $Command } from "@smithy/smithy-client"; import type { MetadataBearer as __MetadataBearer } from "@smithy/types"; import type { GetObjectAttributesOutput, GetObjectAttributesRequest } from "../models/models_0"; import type { S3ClientResolvedConfig, ServiceInputTypes, ServiceOutputTypes } from "../S3Client"; /** * @public */ export type { __MetadataBearer }; export { $Command }; /** * @public * * The input for {@link GetObjectAttributesCommand}. */ export interface GetObjectAttributesCommandInput extends GetObjectAttributesRequest { } /** * @public * * The output of {@link GetObjectAttributesCommand}. */ export interface GetObjectAttributesCommandOutput extends GetObjectAttributesOutput, __MetadataBearer { } declare const GetObjectAttributesCommand_base: { new (input: GetObjectAttributesCommandInput): import("@smithy/smithy-client").CommandImpl; new (input: GetObjectAttributesCommandInput): import("@smithy/smithy-client").CommandImpl; getEndpointParameterInstructions(): import("@smithy/middleware-endpoint").EndpointParameterInstructions; }; /** *

Retrieves all of the metadata from an object without returning the object itself. This operation is * useful if you're interested only in an object's metadata.

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* GetObjectAttributes combines the functionality of HeadObject and * ListParts. All of the data returned with both of those individual calls can be returned * with a single call to GetObjectAttributes.

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* Directory buckets - For directory buckets, you must make requests for this API operation to the Zonal endpoint. These endpoints support virtual-hosted-style requests in the format https://amzn-s3-demo-bucket.s3express-zone-id.region-code.amazonaws.com/key-name * . Path-style requests are not supported. For more information about endpoints in Availability Zones, see Regional and Zonal endpoints for directory buckets in Availability Zones in the * Amazon S3 User Guide. For more information about endpoints in Local Zones, see Concepts for directory buckets in Local Zones in the * Amazon S3 User Guide.

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Permissions
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    * General purpose bucket permissions - To use * GetObjectAttributes, you must have READ access to the object.

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    The other permissions that you need to use this operation depend on whether the bucket is * versioned and if a version ID is passed in the GetObjectAttributes request.

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      If you pass a version ID in your request, you need both the * s3:GetObjectVersion and s3:GetObjectVersionAttributes * permissions.

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      If you do not pass a version ID in your request, you need the * s3:GetObject and s3:GetObjectAttributes permissions.

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    For more information, see Specifying Permissions in a * Policy in the Amazon S3 User Guide.

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    If the object that you request does not exist, the error Amazon S3 returns depends on whether * you also have the s3:ListBucket permission.

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      If you have the s3:ListBucket permission on the bucket, Amazon S3 returns an * HTTP status code 404 Not Found ("no such key") error.

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      If you don't have the s3:ListBucket permission, Amazon S3 returns an HTTP * status code 403 Forbidden ("access denied") error.

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    * Directory bucket permissions - To grant access to this API operation on a directory bucket, we recommend that you use the * CreateSession * 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 * .

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    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.

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Encryption
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Encryption request headers, like x-amz-server-side-encryption, should not be * sent for HEAD requests if your object uses server-side encryption with Key Management Service * (KMS) keys (SSE-KMS), dual-layer server-side encryption with Amazon Web Services KMS keys (DSSE-KMS), or * server-side encryption with Amazon S3 managed encryption keys (SSE-S3). The * x-amz-server-side-encryption header is used when you PUT an object * to S3 and want to specify the encryption method. If you include this header in a * GET request for an object that uses these types of keys, you’ll get an HTTP * 400 Bad Request error. It's because the encryption method can't be changed when * you retrieve the object.

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If you encrypted an object when you stored the object in Amazon S3 by using server-side encryption * with customer-provided encryption keys (SSE-C), then when you retrieve the metadata from the * object, you must use the following headers. These headers provide the server with the encryption * key required to retrieve the object's metadata. The headers are:

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    * x-amz-server-side-encryption-customer-algorithm *

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    * x-amz-server-side-encryption-customer-key *

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    * x-amz-server-side-encryption-customer-key-MD5 *

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For more information about SSE-C, see Server-Side Encryption (Using * Customer-Provided Encryption Keys) in the Amazon S3 User Guide.

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* Directory bucket permissions - * 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). We recommend that the bucket's default encryption uses the desired encryption configuration and you don't override the bucket default encryption in your * CreateSession requests or PUT object requests. Then, new objects * are automatically encrypted with the desired encryption settings. For more * information, see Protecting data with server-side encryption in the Amazon S3 User Guide. For more information about the encryption overriding behaviors in directory buckets, see Specifying server-side encryption with KMS for new object uploads.

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Versioning
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* Directory buckets - S3 Versioning isn't enabled and supported for directory buckets. For this API operation, only the null value of the version ID is supported by directory buckets. * You can only specify null to the versionId query parameter in the * request.

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Conditional request headers
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Consider the following when using request headers:

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    If both of the If-Match and If-Unmodified-Since headers are * present in the request as follows, then Amazon S3 returns the HTTP status code 200 OK * and the data requested:

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      * If-Match condition evaluates to true.

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      * If-Unmodified-Since condition evaluates to false.

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    If both of the If-None-Match and If-Modified-Since headers are * present in the request as follows, then Amazon S3 returns the HTTP status code 304 Not * Modified:

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      * If-None-Match condition evaluates to false.

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      * If-Modified-Since condition evaluates to true.

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

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The following actions are related to GetObjectAttributes:

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You must URL encode any signed header values that contain spaces. For example, if your header value is my file.txt, containing two spaces after my, you must URL encode this value to my%20%20file.txt.

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* @example * Use a bare-bones client and the command you need to make an API call. * ```javascript * import { S3Client, GetObjectAttributesCommand } from "@aws-sdk/client-s3"; // ES Modules import * // const { S3Client, GetObjectAttributesCommand } = require("@aws-sdk/client-s3"); // CommonJS import * // import type { S3ClientConfig } from "@aws-sdk/client-s3"; * const config = {}; // type is S3ClientConfig * const client = new S3Client(config); * const input = { // GetObjectAttributesRequest * Bucket: "STRING_VALUE", // required * Key: "STRING_VALUE", // required * VersionId: "STRING_VALUE", * MaxParts: Number("int"), * PartNumberMarker: "STRING_VALUE", * SSECustomerAlgorithm: "STRING_VALUE", * SSECustomerKey: "STRING_VALUE", * SSECustomerKeyMD5: "STRING_VALUE", * RequestPayer: "requester", * ExpectedBucketOwner: "STRING_VALUE", * ObjectAttributes: [ // ObjectAttributesList // required * "ETag" || "Checksum" || "ObjectParts" || "StorageClass" || "ObjectSize", * ], * }; * const command = new GetObjectAttributesCommand(input); * const response = await client.send(command); * // { // GetObjectAttributesOutput * // DeleteMarker: true || false, * // LastModified: new Date("TIMESTAMP"), * // VersionId: "STRING_VALUE", * // RequestCharged: "requester", * // ETag: "STRING_VALUE", * // Checksum: { // Checksum * // ChecksumCRC32: "STRING_VALUE", * // ChecksumCRC32C: "STRING_VALUE", * // ChecksumCRC64NVME: "STRING_VALUE", * // ChecksumSHA1: "STRING_VALUE", * // ChecksumSHA256: "STRING_VALUE", * // ChecksumType: "COMPOSITE" || "FULL_OBJECT", * // }, * // ObjectParts: { // GetObjectAttributesParts * // TotalPartsCount: Number("int"), * // PartNumberMarker: "STRING_VALUE", * // NextPartNumberMarker: "STRING_VALUE", * // MaxParts: Number("int"), * // IsTruncated: true || false, * // Parts: [ // PartsList * // { // ObjectPart * // PartNumber: Number("int"), * // Size: Number("long"), * // ChecksumCRC32: "STRING_VALUE", * // ChecksumCRC32C: "STRING_VALUE", * // ChecksumCRC64NVME: "STRING_VALUE", * // ChecksumSHA1: "STRING_VALUE", * // ChecksumSHA256: "STRING_VALUE", * // }, * // ], * // }, * // StorageClass: "STANDARD" || "REDUCED_REDUNDANCY" || "STANDARD_IA" || "ONEZONE_IA" || "INTELLIGENT_TIERING" || "GLACIER" || "DEEP_ARCHIVE" || "OUTPOSTS" || "GLACIER_IR" || "SNOW" || "EXPRESS_ONEZONE" || "FSX_OPENZFS" || "FSX_ONTAP", * // ObjectSize: Number("long"), * // }; * * ``` * * @param GetObjectAttributesCommandInput - {@link GetObjectAttributesCommandInput} * @returns {@link GetObjectAttributesCommandOutput} * @see {@link GetObjectAttributesCommandInput} for command's `input` shape. * @see {@link GetObjectAttributesCommandOutput} for command's `response` shape. * @see {@link S3ClientResolvedConfig | config} for S3Client's `config` shape. * * @throws {@link NoSuchKey} (client fault) *

The specified key does not exist.

* * @throws {@link S3ServiceException} *

Base exception class for all service exceptions from S3 service.

* * * @public */ export declare class GetObjectAttributesCommand extends GetObjectAttributesCommand_base { /** @internal type navigation helper, not in runtime. */ protected static __types: { api: { input: GetObjectAttributesRequest; output: GetObjectAttributesOutput; }; sdk: { input: GetObjectAttributesCommandInput; output: GetObjectAttributesCommandOutput; }; }; }