Request Syntax Request Parameters Response Syntax Response Elements Errors Examples See Also

PutResourcePolicy

Attaches a resource-based policy document to the resource, which can be a table or stream. When you attach a resource-based policy using this API, the policy application is eventually consistent.

PutResourcePolicy is an idempotent operation; running it multiple times on the same resource using the same policy document will return the same revision ID. If you specify an ExpectedRevisionId that doesn't match the current policy's RevisionId, the PolicyNotFoundException will be returned.

Note

PutResourcePolicy is an asynchronous operation. If you issue a GetResourcePolicy request immediately after a PutResourcePolicy request, DynamoDB might return your previous policy, if there was one, or return the PolicyNotFoundException. This is because GetResourcePolicy uses an eventually consistent query, and the metadata for your policy or table might not be available at that moment. Wait for a few seconds, and then try the GetResourcePolicy request again.

Request Syntax


{
   "ConfirmRemoveSelfResourceAccess": boolean,
   "ExpectedRevisionId": "string",
   "Policy": "string",
   "ResourceArn": "string"
}

Request Parameters

The request accepts the following data in JSON format.

Note

In the following list, the required parameters are described first.

Policy

An AWS resource-based policy document in JSON format.

The maximum size supported for a resource-based policy document is 20 KB. DynamoDB counts whitespaces when calculating the size of a policy against this limit.
Within a resource-based policy, if the action for a DynamoDB service-linked role (SLR) to replicate data for a global table is denied, adding or deleting a replica will fail with an error.

For a full list of all considerations that apply while attaching a resource-based policy, see Resource-based policy considerations.

Type: String

Required: Yes

ResourceArn

The Amazon Resource Name (ARN) of the DynamoDB resource to which the policy will be attached. The resources you can specify include tables and streams.

You can control index permissions using the base table's policy. To specify the same permission level for your table and its indexes, you can provide both the table and index Amazon Resource Name (ARN)s in the Resource field of a given Statement in your policy document. Alternatively, to specify different permissions for your table, indexes, or both, you can define multiple Statement fields in your policy document.

Type: String

Length Constraints: Minimum length of 1. Maximum length of 1283.

Required: Yes

ConfirmRemoveSelfResourceAccess

Set this parameter to true to confirm that you want to remove your permissions to change the policy of this resource in the future.

Type: Boolean

Required: No

ExpectedRevisionId

A string value that you can use to conditionally update your policy. You can provide the revision ID of your existing policy to make mutating requests against that policy.

Note

When you provide an expected revision ID, if the revision ID of the existing policy on the resource doesn't match or if there's no policy attached to the resource, your request will be rejected with a PolicyNotFoundException.

To conditionally attach a policy when no policy exists for the resource, specify NO_POLICY for the revision ID.

Type: String

Length Constraints: Minimum length of 1. Maximum length of 255.

Required: No

Response Syntax


{
   "RevisionId": "string"
}

Response Elements

If the action is successful, the service sends back an HTTP 200 response.

The following data is returned in JSON format by the service.

RevisionId

A unique string that represents the revision ID of the policy. If you're comparing revision IDs, make sure to always use string comparison logic.

Type: String

Length Constraints: Minimum length of 1. Maximum length of 255.

Errors

For information about the errors that are common to all actions, see Common Errors.

InternalServerError

An error occurred on the server side.

HTTP Status Code: 500

LimitExceededException

There is no limit to the number of daily on-demand backups that can be taken.

For most purposes, up to 500 simultaneous table operations are allowed per account. These operations include CreateTable, UpdateTable, DeleteTable,UpdateTimeToLive, RestoreTableFromBackup, and RestoreTableToPointInTime.

When you are creating a table with one or more secondary indexes, you can have up to 250 such requests running at a time. However, if the table or index specifications are complex, then DynamoDB might temporarily reduce the number of concurrent operations.

When importing into DynamoDB, up to 50 simultaneous import table operations are allowed per account.

There is a soft account quota of 2,500 tables.

GetRecords was called with a value of more than 1000 for the limit request parameter.

More than 2 processes are reading from the same streams shard at the same time. Exceeding this limit may result in request throttling.

HTTP Status Code: 400

PolicyNotFoundException

The operation tried to access a nonexistent resource-based policy.

If you specified an ExpectedRevisionId, it's possible that a policy is present for the resource but its revision ID didn't match the expected value.

HTTP Status Code: 400

ResourceInUseException

The operation conflicts with the resource's availability. For example, you attempted to recreate an existing table, or tried to delete a table currently in the CREATING state.

HTTP Status Code: 400

ResourceNotFoundException

The operation tried to access a nonexistent table or index. The resource might not be specified correctly, or its status might not be ACTIVE.

HTTP Status Code: 400

Examples

Attach a resource-based policy to a table

The following example attaches a resource-based policy to a table named Thread.

To view more examples of resource-based policies, see Resource-based policy examples.

Sample Request


POST / HTTP/1.1
Host: dynamodb.<region>.<domain>;
Accept-Encoding: identity
Content-Length: <PayloadSizeBytes>
User-Agent: <UserAgentString>
Content-Type: application/x-amz-json-1.0
Authorization: AWS4-HMAC-SHA256 Credential=<Credential>, SignedHeaders=<Headers>, Signature=<Signature>
X-Amz-Date: <Date>
X-Amz-Target: DynamoDB_20120810.PutResourcePolicy
{
    "ResourceArn": "arn:aws:dynamodb:us-west-2:123456789012:table/Thread",
    "Policy": "{\"Version\":\"2012-10-17\",\"Statement\":{\"Effect\":\"Allow\",\"Principal\":{\"AWS\":[\"arn:aws:iam::111122223333:root\",\"arn:aws:iam::444455556666:root\"]},\"Action\":[\"dynamodb:GetItem\"],\"Resource\":\"arn:aws:dynamodb:us-west-2:123456789012:table/Thread\"}}"
}

Sample Response


HTTP/1.1 200 OK
x-amzn-RequestId: <RequestId>
x-amz-crc32: <Checksum>
Content-Type: application/x-amz-json-1.0
Content-Length: <PayloadSizeBytes>
Date: <Date>
{
    "RevisionId": "1683717331354"
}