There are more AWS SDK examples available in the [AWS Doc SDK Examples](https://github.com/awsdocs/aws-doc-sdk-examples) GitHub repo. # Use `ListUserPools` with an AWS SDK or CLI The following code examples show how to use `ListUserPools`. ------ #### [ .NET ] **SDK for .NET (v4)** There's more on GitHub. Find the complete example and learn how to set up and run in the [AWS Code Examples Repository](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/dotnetv4/Cognito#code-examples). ``` /// /// List the Amazon Cognito user pools for an account. /// /// A list of UserPoolDescriptionType objects. public async Task> ListUserPoolsAsync() { var userPools = new List(); var userPoolsPaginator = _cognitoService.Paginators.ListUserPools(new ListUserPoolsRequest()); await foreach (var response in userPoolsPaginator.Responses) { userPools.AddRange(response.UserPools); } return userPools; } ``` + For API details, see [ListUserPools](https://docs.aws.amazon.com/goto/DotNetSDKV4/cognito-idp-2016-04-18/ListUserPools) in *AWS SDK for .NET API Reference*. ------ #### [ CLI ] **AWS CLI** **To list user pools** The following `list-user-pools` example lists 3 of the available user pools in the AWS account of the current CLI credentials. ``` aws cognito-idp list-user-pools \ --max-results 3 ``` Output: ``` { "NextToken": "[Pagination token]", "UserPools": [ { "CreationDate": 1681502497.741, "Id": "us-west-2_EXAMPLE1", "LambdaConfig": { "CustomMessage": "arn:aws:lambda:us-east-1:123456789012:function:MyFunction", "PreSignUp": "arn:aws:lambda:us-east-1:123456789012:function:MyFunction", "PreTokenGeneration": "arn:aws:lambda:us-east-1:123456789012:function:MyFunction", "PreTokenGenerationConfig": { "LambdaArn": "arn:aws:lambda:us-east-1:123456789012:function:MyFunction", "LambdaVersion": "V1_0" } }, "LastModifiedDate": 1681502497.741, "Name": "user pool 1" }, { "CreationDate": 1686064178.717, "Id": "us-west-2_EXAMPLE2", "LambdaConfig": { }, "LastModifiedDate": 1686064178.873, "Name": "user pool 2" }, { "CreationDate": 1627681712.237, "Id": "us-west-2_EXAMPLE3", "LambdaConfig": { "UserMigration": "arn:aws:lambda:us-east-1:123456789012:function:MyFunction" }, "LastModifiedDate": 1678486942.479, "Name": "user pool 3" } ] } ``` For more information, see [Amazon Cognito user pools](https://docs.aws.amazon.com/cognito/latest/developerguide/cognito-user-pools.html) in the *Amazon Cognito Developer Guide*. + For API details, see [ListUserPools](https://awscli.amazonaws.com/v2/documentation/api/latest/reference/cognito-idp/list-user-pools.html) in *AWS CLI Command Reference*. ------ #### [ Go ] **SDK for Go V2** There's more on GitHub. Find the complete example and learn how to set up and run in the [AWS Code Examples Repository](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/gov2/cognito#code-examples). ``` package main import ( "context" "fmt" "log" "github.com/aws/aws-sdk-go-v2/aws" "github.com/aws/aws-sdk-go-v2/config" "github.com/aws/aws-sdk-go-v2/service/cognitoidentityprovider" "github.com/aws/aws-sdk-go-v2/service/cognitoidentityprovider/types" ) // main uses the AWS SDK for Go V2 to create an Amazon Simple Notification Service // (Amazon SNS) client and list the topics in your account. // This example uses the default settings specified in your shared credentials // and config files. func main() { ctx := context.Background() sdkConfig, err := config.LoadDefaultConfig(ctx) if err != nil { fmt.Println("Couldn't load default configuration. Have you set up your AWS account?") fmt.Println(err) return } cognitoClient := cognitoidentityprovider.NewFromConfig(sdkConfig) fmt.Println("Let's list the user pools for your account.") var pools []types.UserPoolDescriptionType paginator := cognitoidentityprovider.NewListUserPoolsPaginator( cognitoClient, &cognitoidentityprovider.ListUserPoolsInput{MaxResults: aws.Int32(10)}) for paginator.HasMorePages() { output, err := paginator.NextPage(ctx) if err != nil { log.Printf("Couldn't get user pools. Here's why: %v\n", err) } else { pools = append(pools, output.UserPools...) } } if len(pools) == 0 { fmt.Println("You don't have any user pools!") } else { for _, pool := range pools { fmt.Printf("\t%v: %v\n", *pool.Name, *pool.Id) } } } ``` + For API details, see [ListUserPools](https://pkg.go.dev/github.com/aws/aws-sdk-go-v2/service/cognitoidentityprovider#Client.ListUserPools) in *AWS SDK for Go API Reference*. ------ #### [ Java ] **SDK for Java 2.x** There's more on GitHub. Find the complete example and learn how to set up and run in the [AWS Code Examples Repository](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/javav2/example_code/cognito#code-examples). ``` import software.amazon.awssdk.regions.Region; import software.amazon.awssdk.services.cognitoidentityprovider.CognitoIdentityProviderClient; import software.amazon.awssdk.services.cognitoidentityprovider.model.CognitoIdentityProviderException; import software.amazon.awssdk.services.cognitoidentityprovider.model.ListUserPoolsResponse; import software.amazon.awssdk.services.cognitoidentityprovider.model.ListUserPoolsRequest; /** * Before running this Java V2 code example, set up your development * environment, including your credentials. * * For more information, see the following documentation topic: * * https://docs.aws.amazon.com/sdk-for-java/latest/developer-guide/get-started.html */ public class ListUserPools { public static void main(String[] args) { CognitoIdentityProviderClient cognitoClient = CognitoIdentityProviderClient.builder() .region(Region.US_EAST_1) .build(); listAllUserPools(cognitoClient); cognitoClient.close(); } public static void listAllUserPools(CognitoIdentityProviderClient cognitoClient) { try { ListUserPoolsRequest request = ListUserPoolsRequest.builder() .maxResults(10) .build(); ListUserPoolsResponse response = cognitoClient.listUserPools(request); response.userPools().forEach(userpool -> { System.out.println("User pool " + userpool.name() + ", User ID " + userpool.id()); }); } catch (CognitoIdentityProviderException e) { System.err.println(e.awsErrorDetails().errorMessage()); System.exit(1); } } } ``` + For API details, see [ListUserPools](https://docs.aws.amazon.com/goto/SdkForJavaV2/cognito-idp-2016-04-18/ListUserPools) in *AWS SDK for Java 2.x API Reference*. ------ #### [ Rust ] **SDK for Rust** There's more on GitHub. Find the complete example and learn how to set up and run in the [AWS Code Examples Repository](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/rustv1/examples/cognitoidentityprovider#code-examples). ``` async fn show_pools(client: &Client) -> Result<(), Error> { let response = client.list_user_pools().max_results(10).send().await?; let pools = response.user_pools(); println!("User pools:"); for pool in pools { println!(" ID: {}", pool.id().unwrap_or_default()); println!(" Name: {}", pool.name().unwrap_or_default()); println!(" Lambda Config: {:?}", pool.lambda_config().unwrap()); println!( " Last modified: {}", pool.last_modified_date().unwrap().to_chrono_utc()? ); println!( " Creation date: {:?}", pool.creation_date().unwrap().to_chrono_utc() ); println!(); } println!("Next token: {}", response.next_token().unwrap_or_default()); Ok(()) } ``` + For API details, see [ListUserPools](https://docs.rs/aws-sdk-cognitoidentityprovider/latest/aws_sdk_cognitoidentityprovider/client/struct.Client.html#method.list_user_pools) in *AWS SDK for Rust API reference*. ------