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Retrieves an object from Amazon S3.
GetObject request, specify the full key name for the object.
General purpose buckets - Both the virtual-hosted-style requests and the path-style
requests are supported. For a virtual hosted-style request example, if you have the
photos/2006/February/sample.jpg, specify the object key name as
For a path-style request example, if you have the object
in the bucket named
examplebucket, specify the object key name as
For more information about request types, see HTTP
Host Header Bucket Specification in the Amazon S3 User Guide.
Directory buckets - Only virtual-hosted-style requests are supported. For
a virtual hosted-style request example, if you have the object
in the bucket named
examplebucket--use1-az5--x-s3, specify the object key name
/photos/2006/February/sample.jpg. Also, when you make requests to this API
operation, your requests are sent to the Zonal endpoint. These endpoints support virtual-hosted-style
requests in the format
https://bucket_name.s3express-az_id.region.amazonaws.com/key-name. Path-style requests are not supported. For more information, see Regional
and Zonal endpoints in the Amazon S3 User Guide.
General purpose bucket permissions - You must have the required permissions
in a policy. To use
GetObject, you must have the
READ access to the
object (or version). If you grant
READ access to the anonymous user, the
operation returns the object without using an authorization header. For more information,
permissions in a policy in the Amazon S3 User Guide.
If you include a
versionId in your request header, you must have the
permission to access a specific version of an object. The
is not required in this scenario.
If you request the current version of an object without a specific
in the request header, only the
s3:GetObject permission is required. The
permission is not required in this scenario.
If the object that you request doesn’t exist, the error that Amazon S3 returns depends
on whether you also have the
If you have the
s3:ListBucket permission on the bucket, Amazon S3 returns an
HTTP status code
404 Not Found error.
If you don’t have the
s3:ListBucket permission, Amazon S3 returns an HTTP status
403 Access Denied error.
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
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
If the object you are retrieving is stored in the S3 Glacier Flexible Retrieval storage
class, the S3 Glacier Deep Archive storage class, the S3 Intelligent-Tiering Archive
Access tier, or the S3 Intelligent-Tiering Deep Archive Access tier, before you can
retrieve the object you must first restore a copy using RestoreObject.
Otherwise, this operation returns an
InvalidObjectState error. For information
about restoring archived objects, see Restoring
Archived Objects in the Amazon S3 User Guide.
Directory buckets - For directory buckets, only the S3 Express One Zone storage
class is supported to store newly created objects. Unsupported storage class values
won't write a destination object and will respond with the HTTP status code
Encryption request headers, like
x-amz-server-side-encryption, should not be
sent for the
GetObject requests, if your object uses server-side encryption
with Amazon S3 managed encryption keys (SSE-S3), server-side encryption with Key Management
Service (KMS) keys (SSE-KMS), or dual-layer server-side encryption with Amazon Web
Services KMS keys (DSSE-KMS). If you include the header in your
for the object that uses these types of keys, you’ll get an HTTP
400 Bad Request
There are times when you want to override certain response header values of a
response. For example, you might override the
header value through your
You can override values for a set of response headers. These modified response header
values are included only in a successful response, that is, when the HTTP status code
200 OK is returned. The headers you can override using the following query
parameters in the request are a subset of the headers that Amazon S3 accepts when
you create an object.
The response headers that you can override for the
GetObject response are
To override values for a set of response headers in the
you can use the following query parameters in the request.
When you use these parameters, you must sign the request by using either an Authorization header or a presigned URL. These parameters cannot be used with an unsigned (anonymous) request.
Directory buckets - The HTTP Host header syntax is
The following operations are related to
For .NET Core this operation is only available in asynchronous form. Please refer to GetObjectAsync.
public virtual GetObjectResponse GetObject( String bucketName, String key, String versionId )
The bucket name containing the object. Directory buckets - When you use this operation with a directory bucket, you must use virtual-hosted-style requests in the format Bucket_name.s3express-az_id.region.amazonaws.com. Path-style requests are not supported. Directory bucket names must be unique in the chosen Availability Zone. Bucket names must follow the format bucket_base_name--az-id--x-s3 (for example, DOC-EXAMPLE-BUCKET--usw2-az2--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, you must provide the alias of the access point in place of the bucket name or specify the access point ARN. 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. Object Lambda access points - When you use this action with an Object Lambda access point, you must direct requests to the Object Lambda access point hostname. The Object Lambda access point hostname takes the form AccessPointName-AccountId.s3-object-lambda.Region.amazonaws.com. Access points and Object Lambda access points are not supported by directory buckets. S3 on Outposts - When you use this action with Amazon 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 through the Amazon Web Services SDKs, you provide the Outposts access point ARN in place of the bucket name. For more information about S3 on Outposts ARNs, see What is S3 on Outposts? in the Amazon S3 User Guide.
Key of the object to get.
Version ID used to reference a specific version of the object. By default, the GetObject operation returns the current version of an object. To return a different version, use the versionId subresource. If you include a versionId in your request header, you must have the s3:GetObjectVersion permission to access a specific version of an object. The s3:GetObject permission is not required in this scenario. If you request the current version of an object without a specific versionId in the request header, only the s3:GetObject permission is required. The s3:GetObjectVersion permission is not required in this scenario. 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. For more information about versioning, see PutBucketVersioning.
Supported in: 4.5, 4.0, 3.5