Accessing AWS services
After you configure your Amazon Cognito credentials provider and retrieve AWS credentials, you can create an AWS service client.
AWS SDK resources for creating a client
-
AWS Client configuration in the AWS SDK for C++ Developer Guide
-
Using the AWS SDK for Go V2 with AWS services
in the AWS SDK for Go Developer Guide -
Configuring HTTP clients in the AWS SDK for Java 2.x Developer Guide
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Creating and calling service objects in the AWS SDK for JavaScript Developer Guide
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Creating clients
in the AWS SDK for Python (Boto3) documentation -
Creating a service client in the AWS SDK for Rust Developer Guide
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Using clients in the AWS SDK for Swift Developer Guide
The following snippet initializes an Amazon DynamoDB client:
To use a Amazon Cognito identity pool in an Android app, set up AWS Amplify. For more
information, see Authentication
// Create a service client with the provider AmazonDynamoDB client = new AmazonDynamoDBClient(credentialsProvider);
The credentials provider communicates with Amazon Cognito, retrieving both the unique identifier for authenticated and unauthenticated users as well as temporary, limited privilege AWS credentials for the AWS Mobile SDK. The retrieved credentials are valid for one hour, and the provider refreshes them when they expire.
To use a Amazon Cognito identity pool in an iOS app, set up AWS Amplify. For more
information, see Swift
Authentication
// create a configuration that uses the provider AWSServiceConfiguration *configuration = [AWSServiceConfiguration configurationWithRegion:AWSRegionUSEast1 provider:credentialsProvider]; // get a client with the default service configuration AWSDynamoDB *dynamoDB = [AWSDynamoDB defaultDynamoDB];
The credentials provider communicates with Amazon Cognito, retrieving both the unique identifier for authenticated and unauthenticated users as well as temporary, limited privilege AWS credentials for the AWS Mobile SDK. The retrieved credentials are valid for one hour, and the provider refreshes them when they expire.
To use a Amazon Cognito identity pool in an iOS app, set up AWS Amplify. For more
information, see Swift
Authentication
// get a client with the default service configuration let dynamoDB = AWSDynamoDB.default() // get a client with a custom configuration AWSDynamoDB.register(with: configuration!, forKey: "USWest2DynamoDB"); let dynamoDBCustom = AWSDynamoDB(forKey: "USWest2DynamoDB")
The credentials provider communicates with Amazon Cognito, retrieving both the unique identifier for authenticated and unauthenticated users as well as temporary, limited privilege AWS credentials for the AWS Mobile SDK. The retrieved credentials are valid for one hour, and the provider refreshes them when they expire.
// Create a service client with the provider var dynamodb = new AWS.DynamoDB({region: 'us-west-2'});
The credentials provider communicates with Amazon Cognito, retrieving both the unique identifier for authenticated and unauthenticated users as well as temporary, limited-privilege AWS credentials for the AWS Mobile SDK. The retrieved credentials are valid for one hour, and the provider refreshes them when they expire.
The AWS SDK for
Unity is now part of the AWS SDK for .NET. To get started with
Amazon Cognito in the AWS SDK for .NET, see Amazon Cognito credentials
provider in the AWS SDK for .NET Developer Guide. Or see Amplify Dev Center
// create a service client that uses credentials provided by Cognito AmazonDynamoDBClient client = new AmazonDynamoDBClient(credentials, REGION);
The credentials provider communicates with Amazon Cognito, retrieving both the unique identifier for authenticated and unauthenticated users as well as temporary, limited-privilege AWS credentials for the AWS Mobile SDK. The retrieved credentials are valid for one hour, and the provider refreshes them when they expire.
The AWS SDK for Xamarin is now part of the AWS SDK for .NET. To get started with
Amazon Cognito in the AWS SDK for .NET, see Amazon Cognito credentials
provider in the AWS SDK for .NET Developer Guide. Or see Amplify Dev Center
// create a service client that uses credentials provided by Cognito var client = new AmazonDynamoDBClient(credentials, REGION)
The credentials provider communicates with Amazon Cognito, retrieving both the unique identifier for authenticated and unauthenticated users as well as temporary, limited-privilege AWS credentials for the AWS Mobile SDK. The retrieved credentials are valid for one hour, and the provider refreshes them when they expire.