GET

/snapshots/{secondSnapshotId}/changedblocks

http://ebs.{region}.amazonaws.com/snapshots/{secondSnapshotId}/changedblocks

Returns information about the blocks that are different between two Amazon Elastic Block Store snapshots of the same volume/snapshot lineage.

Access Token Required: API Key

Path Parameters

secondSnapshotIdstringrequired

The ID of the second snapshot to use for the comparison. <important> The <code>SecondSnapshotId</code> parameter must be specified with a <code>FirstSnapshotID</code> parameter; otherwise, an error occurs. </important>

Query Params

firstSnapshotIdstring

The ID of the first snapshot to use for the comparison. <important> The <code>FirstSnapshotID</code> parameter must be specified with a <code>SecondSnapshotId</code> parameter; otherwise, an error occurs. </important>

pageTokenstring

The token to request the next page of results. If you specify NextToken, then StartingBlockIndex is ignored.

maxResultsinteger

The maximum number of blocks to be returned by the request. Even if additional blocks can be retrieved from the snapshot, the request can return less blocks than MaxResults or an empty array of blocks. To retrieve the next set of blocks from the snapshot, make another request with the returned NextToken value. The value of NextToken is <code>null</code> when there are no more blocks to return.

startingBlockIndexinteger

The block index from which the comparison should start. The list in the response will start from this block index or the next valid block index in the snapshots. If you specify NextToken, then StartingBlockIndex is ignored.

MaxResultsstring

Pagination limit

NextTokenstring

Pagination token

Responses

{
  "success": true,
  "data": {
    "id": "abc123",
    "created_at": "2025-01-01T00:00:00Z"
  }
}

{
  "success": false,
  "error": {
    "code": "VALIDATION_ERROR",
    "message": "Invalid request parameters"
  }
}

Language

CredentialsAPI KEY

API Key

Enter token below to save for later

cURL Request

1curl --request GET \
2     --url 'http://ebs.{region}.amazonaws.com/snapshots/{secondSnapshotId}/changedblocks' \
3     --header 'accept: application/json' \
4     --header 'content-type: application/json'

Response

1{
2  "success": true,
3  "data": {
4    "id": "abc123",
5    "created_at": "2025-01-01T00:00:00Z"
6  }
7}

1curl --request GET \ 2 --url 'http://ebs.{region}.amazonaws.com/snapshots/{secondSnapshotId}/changedblocks' \ 3 --header 'accept: application/json' \ 4 --header 'content-type: application/json'