list_objects async ¶

async def list_objects(
    self,
    bucket: "capo_s3.types.bucket_name.BucketName",
    *,
    config_overrides: Optional[AsyncS3ClientConfig] = None,
    delimiter: Optional["capo_s3.types.delimiter.Delimiter"] = None,
    encoding_type: Optional["capo_s3.types.encoding_type.EncodingType"] = None,
    marker: Optional["capo_s3.types.marker.Marker"] = None,
    max_keys: Optional["capo_s3.types.max_keys.MaxKeys"] = None,
    prefix: Optional["capo_s3.types.prefix.Prefix"] = None,
    request_payer: Optional["capo_s3.types.request_payer.RequestPayer"] = None,
    expected_bucket_owner: Optional["capo_s3.types.account_id.AccountId"] = None,
    optional_object_attributes: Optional[
        "capo_s3.types.optional_object_attributes_list.OptionalObjectAttributesList"
    ] = None,
) -> "capo_s3.types.list_objects_output.ListObjectsOutput":
    """<note> <p>This operation is not supported for directory buckets.</p> </note> <p>Returns some or all (up to 1,000) of the objects in a bucket. You can use the request parameters as selection criteria to return a subset of the objects in a bucket. A 200 OK response can contain valid or invalid XML. Be sure to design your application to parse the contents of the response and handle it appropriately.</p> <important> <p>This action has been revised. We recommend that you use the newer version, <a href="https://docs.aws.amazon.com/AmazonS3/latest/API/API_ListObjectsV2.html">ListObjectsV2</a>, when developing applications. For backward compatibility, Amazon S3 continues to support <code>ListObjects</code>.</p> </important> <p>The following operations are related to <code>ListObjects</code>:</p> <ul> <li> <p> <a href="https://docs.aws.amazon.com/AmazonS3/latest/API/API_ListObjectsV2.html">ListObjectsV2</a> </p> </li> <li> <p> <a href="https://docs.aws.amazon.com/AmazonS3/latest/API/API_GetObject.html">GetObject</a> </p> </li> <li> <p> <a href="https://docs.aws.amazon.com/AmazonS3/latest/API/API_PutObject.html">PutObject</a> </p> </li> <li> <p> <a href="https://docs.aws.amazon.com/AmazonS3/latest/API/API_CreateBucket.html">CreateBucket</a> </p> </li> <li> <p> <a href="https://docs.aws.amazon.com/AmazonS3/latest/API/API_ListBuckets.html">ListBuckets</a> </p> </li> </ul> <important> <p>You must URL encode any signed header values that contain spaces. For example, if your header value is <code>my file.txt</code>, containing two spaces after <code>my</code>, you must URL encode this value to <code>my%20%20file.txt</code>.</p> </important>

    Args:
        bucket: <p>The name of the bucket containing the objects.</p> <p> <b>Directory buckets</b> - When you use this operation with a directory bucket, you must use virtual-hosted-style requests in the format <code> <i>Bucket-name</i>.s3express-<i>zone-id</i>.<i>region-code</i>.amazonaws.com</code>. 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 <code> <i>bucket-base-name</i>--<i>zone-id</i>--x-s3</code> (for example, <code> <i>amzn-s3-demo-bucket</i>--<i>usw2-az1</i>--x-s3</code>). For information about bucket naming restrictions, see <a href="https://docs.aws.amazon.com/AmazonS3/latest/userguide/directory-bucket-naming-rules.html">Directory bucket naming rules</a> in the <i>Amazon S3 User Guide</i>.</p> <p> <b>Access points</b> - 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 <i>AccessPointName</i>-<i>AccountId</i>.s3-accesspoint.<i>Region</i>.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 <a href="https://docs.aws.amazon.com/AmazonS3/latest/userguide/using-access-points.html">Using access points</a> in the <i>Amazon S3 User Guide</i>.</p> <note> <p>Object Lambda access points are not supported by directory buckets.</p> </note> <p> <b>S3 on Outposts</b> - 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 <code> <i>AccessPointName</i>-<i>AccountId</i>.<i>outpostID</i>.s3-outposts.<i>Region</i>.amazonaws.com</code>. 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 <a href="https://docs.aws.amazon.com/AmazonS3/latest/userguide/S3onOutposts.html">What is S3 on Outposts?</a> in the <i>Amazon S3 User Guide</i>.</p>
        delimiter: <p>A delimiter is a character that you use to group keys.</p> <p> <code>CommonPrefixes</code> is filtered out from results if it is not lexicographically greater than the key-marker.</p>
        marker: <p>Marker is where you want Amazon S3 to start listing from. Amazon S3 starts listing after this specified key. Marker can be any key in the bucket.</p>
        max_keys: <p>Sets the maximum number of keys returned in the response. By default, the action returns up to 1,000 key names. The response might contain fewer keys but will never contain more. </p>
        prefix: <p>Limits the response to keys that begin with the specified prefix.</p>
        request_payer: <p>Confirms that the requester knows that she or he will be charged for the list objects request. Bucket owners need not specify this parameter in their requests.</p>
        expected_bucket_owner: <p>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 <code>403 Forbidden</code> (access denied).</p>
        optional_object_attributes: <p>Specifies the optional fields that you want returned in the response. Fields that you do not specify are not returned.</p>

    Raises:
        capo_s3.errors.no_such_bucket.NoSuchBucket: <p>The specified bucket does not exist.</p>
        capo_s3.errors.UnknownServiceError: The service returned an error code this client does not model.

    Examples:
        To list objects in a bucket
        The following example list two objects in a bucket.

        >>> await client.list_objects(bucket='examplebucket', max_keys=2)
    """

    async def _handler(
        req: "AsyncOperationRequest[capo_s3.types.list_objects_request.ListObjectsRequest]",
    ) -> AsyncOperationResponse[
        "capo_s3.types.list_objects_output.ListObjectsOutput"
    ]:
        import capo_s3._operations.amazon_s3.list_objects

        (
            output,
            http_response,
        ) = await capo_s3._operations.amazon_s3.list_objects.async_list_objects(
            req.options, req.input
        )
        return AsyncOperationResponse(output=output, response=http_response)

    interceptors_, options_ = self.operation_options(
        config_overrides, OperationLogging("ListObjects")
    )
    input_: capo_s3.types.list_objects_request.ListObjectsRequest = {
        "bucket": bucket
    }
    if delimiter is not None:
        input_["delimiter"] = delimiter
    if encoding_type is not None:
        input_["encoding_type"] = encoding_type
    if marker is not None:
        input_["marker"] = marker
    if max_keys is not None:
        input_["max_keys"] = max_keys
    if prefix is not None:
        input_["prefix"] = prefix
    if request_payer is not None:
        input_["request_payer"] = request_payer
    if expected_bucket_owner is not None:
        input_["expected_bucket_owner"] = expected_bucket_owner
    if optional_object_attributes is not None:
        input_["optional_object_attributes"] = optional_object_attributes

    response = await aexecute_pipeline(
        AsyncOperationRequest(input=input_, options=options_),
        handler=_handler,
        interceptors=list(interceptors_),
    )
    await response.response.aclose()
    return response.output