API Gateway Authentication
API Gateway Authentication is an important concept in API Gateway, enabling the secure access and usage of REST and WebSocket APIs. API Gateway supports multiple authentication mechanisms, such as AWS IAM, Lambda authorizers, and Amazon Cognito. AWS IAM is used to provide access control for AWS users and roles, Lambda authorizers allow for custom authentication logic to run in Lambda functions, and Amazon Cognito provides user authentication and management with integration to social media providers. API Gateway Authentication and fine-grained access control enable secure and customizable API access for different types of users and clients.
Guide: API Gateway Authentication
What is API Gateway Authentication?
API Gateway Authentication is a crucial feature of AWS API Gateway that helps in ensuring only authorized requests reach your back-end services. It applies a standard method for validating HTTP requests sent to AWS, either by a web server, a client-side script, or an AWS service.
Why is API Gateway Authentication important?
API Gateway Authentication is critical for the security of your API. It prevents malicious users from performing unauthorized actions and protects sensitive data from being exposed. In the face of rising API-related security incidents, having robust API protection becomes a necessity, not a choice.
How does API Gateway Authentication work?
AWS provides multiple methods for API Gateway Authentication, most notably:
1. IAM roles and policies: Use AWS' secure and flexible identity solution method.
2. Lambda authorizer: A Lambda function for custom authorization.
3. Amazon Cognito user pools: Easily manage and authenticate users.
4. Resource policies: Grant usage permissions using JSON policies.
Exam Tips: Answering Questions on API Gateway Authentication
1. Understand the types of authorization supported by API Gateway and when to use each.
2. Questions may focus on integration of different AWS services for API Gateway Authentication. Be clear about which service is best suited for specific scenarios.
3. Remember that AWS IAM is a common method for API Gateway Authentication.
4. Be aware of API caching and how it could impact API Gateway Authentication.
5. Practice scenarios where you would use one form of authentication over another.
AWS Certified Solutions Architect - Amazon API Gateway Example Questions
Test your knowledge of Amazon Simple Storage Service (S3)
Question 1
An organization wants to use JWT authentication for their APIs with API Gateway. Which type of authorizer should they use?
Question 2
An application developer needs to control access to their API Gateway with temporary, limited-privilege tokens. Which service should be used?
Question 3
A company has an external business partner that needs access to an API hosted on AWS API Gateway. What is the recommended method for securing the API and granting access to the business partner?
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