What are REST APIs?

REST APIs (Representational State Transfer APIs) are APIs that use the HTTP protocol for communication. The HTTP protocol allows clients to make requests to web services and receive responses. REST APIs use a common set of HTTP methods such as GET, POST, PUT, and DELETE to interact with web services. REST APIs are used to provide access to web services and data.

Why is it important to secure REST APIs?

It is important to secure REST APIs because they are used to access sensitive data and services. Rest APIs can be used to access user data, financial data, and other sensitive information. If these APIs are not secured properly, attackers could gain access to this information and misuse it.

How to secure REST APIs using AWS Cognito?

Amazon Cognito is a cloud-based user authentication and authorization service. It allows you to securely manage user identities and access control for your applications. It provides an easy to use API that enables you to securely store and manage user identities, as well as to provide single sign-on (SSO) and social sign-in capabilities to your applications.

Using Amazon Cognito for API security provides several benefits. First, it simplifies user authentication and authorization, reducing the amount of code you have to write for user management. Second, it provides a secure, scalable, and reliable way to manage user identities. Finally, it provides a cost-effective way to manage user identities and access control across multiple applications.

Securing REST APIs using AWS Cognito is a straightforward process. First, you’ll need to create an Amazon Cognito User Pool, which will store and manage user identities. Then, you’ll need to create an IAM policy to control access to your API. Finally, you’ll need to create a Cognito Identity Pool, which will allow users to securely access your API using their Amazon Cognito identities.

Once you have created your User Pool and Identity Pool, you can then use the IAM policy to control access to your API. You can use the policy to specify which users have access to your API, as well as what type of access they have (read, write, or delete).

How to secure REST APIs using AWS API Gateway? 

AWS API Gateway is a managed service that makes it easy to create, publish, maintain, monitor, and secure APIs at any scale. It allows developers to create, publish, maintain, and secure APIs quickly and easily. It also provides features like API key and token authentication, rate limiting, and API caching.

Creating an API Gateway is a straightforward process. The first step is to create an API in the AWS Management Console. Once you’ve done that, you can define your API’s resources, methods, and associated integration requests.

In API Gateway, you can use API keys to control access to your APIs. You can create API keys for users and applications and then associate them with stages, methods, or resources. When a request is made to your API, API Gateway will validate the API key and either allow or deny the request. API keys are a great way to secure access to your APIs.

In addition to API keys, you can also use AWS Identity and Access Management (IAM) to control access to your APIs. IAM allows you to create users and groups and then assign them specific permissions. You can use IAM to control who has access to your APIs and what they can do. You can also set up policies to restrict access to specific methods or resources.

Lastly, API throttling is a great way to limit the amount of traffic being sent to your APIs. You can set up throttling rules to limit the number of requests that can be sent to your APIs in a given period of time. Throttling can help you protect your APIs from being overloaded and help ensure that your users get a consistent experience.

How to secure REST APIs using AWS WAF? 

AWS WAF (Web Application Firewall) is a service that makes it easy to protect web applications from common web exploits. It provides protection against SQL injections, cross-site scripting attacks, and other web application attacks.

First, you need to set up AWS WAF. To do this, you need to log into the AWS console and select the AWS WAF service. Once you’ve entered your AWS account details, you can start to customize your WAF settings. Here, you can configure rules to block malicious requests, such as SQL injection, cross-site scripting, and other malicious activities. You can also set up IP-based rate limiting to limit the number of requests from a single IP address.

Once you’ve set up AWS WAF, you can start creating rules to secure your REST APIs. Here, you can configure rules to block suspicious requests, such as those from malicious IP addresses or those containing malicious strings. Additionally, you can create rules to detect and block requests that include invalid parameters or have a high rate of requests.

Once you’ve configured your rules, you need to monitor your API requests to ensure that your rules are working as intended. To do this, you can use Amazon CloudWatch to monitor the performance of your API requests. With CloudWatch, you can set up alerts to notify you when there are any suspicious requests or when the rate of requests exceeds a certain threshold.


Securing rest APIs is an important part of any cloud application. It is important to ensure that rest APIs are secure and only accessible to authorized users. In this blog post, we discussed how to use AWS Cognito, AWS API Gateway, and AWS WAF to secure rest APIs. With these services, you can ensure that your rest APIs are secure and only accessible to authorized users. If you would like to learn more how Securinc can help you secure your APIs, contact us now!

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