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

ListDatasets

Lists datasets for an identity. With Amazon Cognito Sync, each identity has access only to its own data. Thus, the credentials used to make this API call need to have access to the identity data.

ListDatasets can be called with temporary user credentials provided by Cognito Identity or with developer credentials. You should use the Cognito Identity credentials to make this API call.

Request Syntax


GET /identitypools/IdentityPoolId/identities/IdentityId/datasets?maxResults=MaxResults&nextToken=NextToken HTTP/1.1

URI Request Parameters

The request uses the following URI parameters.

IdentityId

A name-spaced GUID (for example, us-east-1:23EC4050-6AEA-7089-A2DD-08002EXAMPLE) created by Amazon Cognito. GUID generation is unique within a region.

Length Constraints: Minimum length of 1. Maximum length of 55.

Pattern: [\w-]+:[0-9a-f-]+

Required: Yes

IdentityPoolId

A name-spaced GUID (for example, us-east-1:23EC4050-6AEA-7089-A2DD-08002EXAMPLE) created by Amazon Cognito. GUID generation is unique within a region.

Length Constraints: Minimum length of 1. Maximum length of 55.

Pattern: [\w-]+:[0-9a-f-]+

Required: Yes

MaxResults

The maximum number of results to be returned.

Length Constraints: Maximum length of 19.

Pattern: ^[1-9]\d*

NextToken

A pagination token for obtaining the next page of results.

Request Body

The request does not have a request body.

Response Syntax


HTTP/1.1 200
Content-type: application/json

{
   "Count": number,
   "Datasets": [ 
      { 
         "CreationDate": number,
         "DatasetName": "string",
         "DataStorage": number,
         "IdentityId": "string",
         "LastModifiedBy": "string",
         "LastModifiedDate": number,
         "NumRecords": number
      }
   ],
   "NextToken": "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.

Count

Number of datasets returned.

Type: Integer

Datasets

A set of datasets.

Type: Array of Dataset objects

NextToken

A pagination token for obtaining the next page of results.

Type: String

Errors

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

InternalErrorException

Indicates an internal service error.

HTTP Status Code: 500

InvalidParameterException

Thrown when a request parameter does not comply with the associated constraints.

HTTP Status Code: 400

NotAuthorizedException

Thrown when a user is not authorized to access the requested resource.

HTTP Status Code: 403

TooManyRequestsException

Thrown if the request is throttled.

HTTP Status Code: 429

Examples

ListDatasets

The following examples have been edited for readability.

Sample Request



POST / HTTP/1.1
CONTENT-TYPE: application/json
X-AMZN-REQUESTID: 15225768-209f-4078-aaed-7494ace9f2db
X-AMZ-TARGET: com.amazonaws.cognito.sync.model.AWSCognitoSyncService.ListDatasets
HOST: cognito-sync.us-east-1.amazonaws.com:443
X-AMZ-DATE: 20141111T215640Z
AUTHORIZATION: AWS4-HMAC-SHA256 Credential=<credential>, SignedHeaders=content-type;host;x-amz-date;x-amz-target;x-amzn-requestid, Signature=<signature>
 
{
    "IdentityPoolId": "IDENTITY_POOL_ID",
    "IdentityId": "IDENTITY_ID",
    "MaxResults": "3"
}

Sample Response



1.1 200 OK
x-amzn-requestid: 15225768-209f-4078-aaed-7494ace9f2db, 15225768-209f-4078-aaed-7494ace9f2db
content-type: application/json
content-length: 355
date: Tue, 11 Nov 2014 21:56:40 GMT
 
{
    "Count": 1,
    "Datasets": [
    {
        "CreationDate": 1.412974057151E9,
        "DataStorage": 16,
        "DatasetName": "my_list",
        "IdentityId": "IDENTITY_ID",
        "LastModifiedBy": "123456789012",
        "LastModifiedDate": 1.412974057244E9,
        "NumRecords": 1
    }],
    "NextToken": null
}