ListUsers - Amazon Cognito User Pools
Request SyntaxRequest ParametersResponse SyntaxResponse ElementsErrorsExamplesSee Also
Services or capabilities described in Amazon Web Services documentation might vary by Region. To see the differences applicable to the China Regions, see Getting Started with Amazon Web Services in China (PDF).

ListUsers

Lists users and their basic details in a user pool.

Note

Amazon Cognito evaluates Amazon Identity and Access Management (IAM) policies in requests for this API operation. For this operation, you must use IAM credentials to authorize requests, and you must grant yourself the corresponding IAM permission in a policy.

Learn more

Request Syntax

{
   "AttributesToGet": [ "string" ],
   "Filter": "string",
   "Limit": number,
   "PaginationToken": "string",
   "UserPoolId": "string"
}

Request Parameters

For information about the parameters that are common to all actions, see Common Parameters.

The request accepts the following data in JSON format.

AttributesToGet

A JSON array of user attribute names, for example given_name, that you want Amazon Cognito to include in the response for each user. When you don't provide an AttributesToGet parameter, Amazon Cognito returns all attributes for each user.

Use AttributesToGet with required attributes in your user pool, or in conjunction with Filter. Amazon Cognito returns an error if not all users in the results have set a value for the attribute you request. Attributes that you can't filter on, including custom attributes, must have a value set in every user profile before an AttributesToGet parameter returns results.

Type: Array of strings

Length Constraints: Minimum length of 1. Maximum length of 32.

Pattern: [\p{L}\p{M}\p{S}\p{N}\p{P}]+

Required: No

Filter

A filter string of the form "AttributeName Filter-Type "AttributeValue"". Quotation marks within the filter string must be escaped using the backslash (\) character. For example, "family_name = \"Reddy\"".

  • AttributeName: The name of the attribute to search for. You can only search for one attribute at a time.

  • Filter-Type: For an exact match, use =, for example, "given_name = \"Jon\"". For a prefix ("starts with") match, use ^=, for example, "given_name ^= \"Jon\"".

  • AttributeValue: The attribute value that must be matched for each user.

If the filter string is empty, ListUsers returns all users in the user pool.

You can only search for the following standard attributes:

  • username (case-sensitive)

  • email

  • phone_number

  • name

  • given_name

  • family_name

  • preferred_username

  • cognito:user_status (called Status in the Console) (case-insensitive)

  • status (called Enabled in the Console) (case-sensitive)

  • sub

Custom attributes aren't searchable.

Note

You can also list users with a client-side filter. The server-side filter matches no more than one attribute. For an advanced search, use a client-side filter with the --query parameter of the list-users action in the Amazon CLI. When you use a client-side filter, ListUsers returns a paginated list of zero or more users. You can receive multiple pages in a row with zero results. Repeat the query with each pagination token that is returned until you receive a null pagination token value, and then review the combined result.

For more information about server-side and client-side filtering, see FilteringAmazon CLI output in the Amazon Command Line Interface User Guide.

For more information, see Searching for Users Using the ListUsers API and Examples of Using the ListUsers API in the Amazon Cognito Developer Guide.

Type: String

Length Constraints: Maximum length of 256.

Required: No

Limit

Maximum number of users to be returned.

Type: Integer

Valid Range: Minimum value of 0. Maximum value of 60.

Required: No

PaginationToken

This API operation returns a limited number of results. The pagination token is an identifier that you can present in an additional API request with the same parameters. When you include the pagination token, Amazon Cognito returns the next set of items after the current list. Subsequent requests return a new pagination token. By use of this token, you can paginate through the full list of items.

Type: String

Length Constraints: Minimum length of 1.

Pattern: [\S]+

Required: No

UserPoolId

The user pool ID for the user pool on which the search should be performed.

Type: String

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

Pattern: [\w-]+_[0-9a-zA-Z]+

Required: Yes

Response Syntax

{
   "PaginationToken": "string",
   "Users": [ 
      { 
         "Attributes": [ 
            { 
               "Name": "string",
               "Value": "string"
            }
         ],
         "Enabled": boolean,
         "MFAOptions": [ 
            { 
               "AttributeName": "string",
               "DeliveryMedium": "string"
            }
         ],
         "UserCreateDate": number,
         "UserLastModifiedDate": number,
         "Username": "string",
         "UserStatus": "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.

PaginationToken

The identifier that Amazon Cognito returned with the previous request to this operation. When you include a pagination token in your request, Amazon Cognito returns the next set of items in the list. By use of this token, you can paginate through the full list of items.

Type: String

Length Constraints: Minimum length of 1.

Pattern: [\S]+

Users

A list of the user pool users, and their attributes, that match your query.

Note

Amazon Cognito creates a profile in your user pool for each native user in your user pool, and each unique user ID from your third-party identity providers (IdPs). When you link users with the AdminLinkProviderForUser API operation, the output of ListUsers displays both the IdP user and the native user that you linked. You can identify IdP users in the Users object of this API response by the IdP prefix that Amazon Cognito appends to Username.

Type: Array of UserType objects

Errors

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

InternalErrorException

This exception is thrown when Amazon Cognito encounters an internal error.

HTTP Status Code: 500

InvalidParameterException

This exception is thrown when the Amazon Cognito service encounters an invalid parameter.

HTTP Status Code: 400

NotAuthorizedException

This exception is thrown when a user isn't authorized.

HTTP Status Code: 400

ResourceNotFoundException

This exception is thrown when the Amazon Cognito service can't find the requested resource.

HTTP Status Code: 400

TooManyRequestsException

This exception is thrown when the user has made too many requests for a given operation.

HTTP Status Code: 400

Examples

Example

This request submits a value for all possible parameters for ListUsers. By iterating the PaginationToken, you can page through and collect all users in a user pool.

Sample Request

POST HTTP/1.1
Host: cognito-idp.us-east-1.amazonaws.com
X-Amz-Date: 20230613T200059Z
Accept-Encoding: gzip, deflate, br
X-Amz-Target: AWSCognitoIdentityProviderService.ListUsers
User-Agent: <UserAgentString>
Authorization: AWS4-HMAC-SHA256 Credential=<Credential>, SignedHeaders=<Headers>, Signature=<Signature>
Content-Length: <PayloadSizeBytes>

{
    "AttributesToGet": [
        "email",
        "sub"
    ],
    "Filter": "\"email\"^=\"testuser\"",
    "Limit": 3,
    "PaginationToken": "abcd1234EXAMPLE",
    "UserPoolId": "us-east-1_EXAMPLE"
}

Sample Response

HTTP/1.1 200 OK
Date: Tue, 13 Jun 2023 20:00:59 GMT
Content-Type: application/x-amz-json-1.0
Content-Length: <PayloadSizeBytes>
x-amzn-requestid: a1b2c3d4-e5f6-a1b2-c3d4-EXAMPLE11111
Connection: keep-alive

{
    "PaginationToken": "efgh5678EXAMPLE",
    "Users": [
        {
            "Attributes": [
                {
                    "Name": "sub",
                    "Value": "eaad0219-2117-439f-8d46-4db20e59268f"
                },
                {
                    "Name": "email",
                    "Value": "testuser@example.com"
                }
            ],
            "Enabled": true,
            "UserCreateDate": 1682955829.578,
            "UserLastModifiedDate": 1689030181.63,
            "UserStatus": "CONFIRMED",
            "Username": "testuser"
        },
        {
            "Attributes": [
                {
                    "Name": "sub",
                    "Value": "3b994cfd-0b07-4581-be46-3c82f9a70c90"
                },
                {
                    "Name": "email",
                    "Value": "testuser2@example.com"
                }
            ],
            "Enabled": true,
            "UserCreateDate": 1684427979.201,
            "UserLastModifiedDate": 1684427979.201,
            "UserStatus": "UNCONFIRMED",
            "Username": "testuser2"
        },
        {
            "Attributes": [
                {
                    "Name": "sub",
                    "Value": "5929e0d1-4c34-42d1-9b79-a5ecacfe66f7"
                },
                {
                    "Name": "email",
                    "Value": "testuser3@example.com"
                }
            ],
            "Enabled": true,
            "UserCreateDate": 1684427823.641,
            "UserLastModifiedDate": 1684427823.641,
            "UserStatus": "UNCONFIRMED",
            "Username": "testuser3@example.com"
        }
    ]
}

See Also

For more information about using this API in one of the language-specific Amazon SDKs, see the following: