AI User Authentication Flows using AWS Identity Store

Question

Pulumi · Accepted Answer

When implementing user authentication flows using AWS Identity Store, you'll be working with various AWS services, including AWS Identity and Access Management (IAM), Amazon Cognito, and possibly AWS Identity Store. Amazon Cognito is a service that provides authentication, authorization, and user management for web and mobile applications. Users can sign in directly with a user name and password or through third parties such as Facebook, Google, and Amazon.

The AWS Identity Store, on the other hand, is more about centralized identity management for AWS SSO (Single Sign-On) enabled applications. It's important to note that AWS Identity Store is specifically designed to work with AWS SSO and not as a general user directory that you might use for a custom application authentication flow.

Below you’ll find an example of a Pulumi Python program that sets up an AWS Cognito user pool, which is a common starting point for creating user authentication flows in AWS. It allows users to sign up and sign in to your applications. It also sets up a user pool client, which is needed for your application to interact with the user pool when signing in users.

```python
import pulumi
import pulumi_aws as aws

# Create an Amazon Cognito User Pool
user_pool = aws.cognito.UserPool("exampleUserPool",
    auto_verified_attributes=["email"],
    password_policy=aws.cognito.UserPoolPasswordPolicyArgs(
        minimum_length=8,
        require_lowercase=True,
        require_numbers=True,
        require_symbols=True,
        require_uppercase=True,
    ),
    schemas=[
        aws.cognito.UserPoolSchemaArgs(
            attribute_data_type="String",
            name="email",
            required=True,
            string_attribute_constraints=aws.cognito.UserPoolSchemaStringAttributeConstraintsArgs(
                min_length="7",
                max_length="40",
            ),
        ),
    ],
)

# Create an Amazon Cognito User Pool Client
user_pool_client = aws.cognito.UserPoolClient("exampleUserPoolClient",
    allowed_oauth_flows=["code", "implicit"],
    allowed_oauth_flows_user_pool_client=True,
    allowed_oauth_scopes=["phone", "email", "openid", "profile", "aws.cognito.signin.user.admin"],
    callback_urls=["https://www.example.com/callback"],
    default_redirect_uri="https://www.example.com/callback",
    generate_secret=True,
    logout_urls=["https://www.example.com/logout"],
    supported_identity_providers=["COGNITO"],
    user_pool_id=user_pool.id,
)

# Export the ID and endpoint of the User Pool and User Pool Client
pulumi.export('user_pool_id', user_pool.id)
pulumi.export('user_pool_client_id', user_pool_client.id)
```

This code block sets up a basic user pool with email verification and a password policy requiring a mix of character types. It defines how the user data will be stored with a schema for an email attribute. It then creates a user pool client that is configured for web application flow, including endpoints for a callback after login, and a secret to secure communication between your app and the service.

The `pulumi.export` lines at the end expose the IDs of the created user pool and user pool client for use in other parts of your application, like the frontend or server-side code that will call AWS Cognito for authentication purposes.

While this setup allows you to begin authenticating users in your application, integrating Cognito into your application's code and handling the sign-up and sign-in flows would require additional code outside of Pulumi, typically within your application's frontend and backend logic.

For in-depth guidance on implementing full authentication flows, including handling tokens, refreshing sessions, and synchronizing user data, you should consult AWS Cognito's developer documentation and SDKs. Additionally, you may use AWS Amplify, a development platform for building secure, scalable mobile and web applications, which provides easy-to-use libraries that interact with your Cognito user pool.