API keys and usage plans in AWS - Cheat Sheet & Quick Revision

Recall & Review

beginner

What is an API key in AWS API Gateway?

An API key is a unique identifier used to control and track access to an API. It helps manage who can call the API and monitor usage.

beginner

What is a usage plan in AWS API Gateway?

A usage plan sets limits on how many requests an API key can make. It controls the rate and quota of API calls to protect the backend and manage costs.

intermediate

How do API keys and usage plans work together?

API keys identify the caller, and usage plans apply limits to those keys. This combination controls access and usage to keep the API safe and efficient.

beginner

Why should you use usage plans with API keys?

Usage plans help prevent overuse or abuse by limiting requests. They ensure fair use and protect your API from unexpected traffic spikes.

intermediate

Can you use API keys without usage plans in AWS API Gateway?

Yes, but without usage plans, you cannot set limits or quotas. This can lead to uncontrolled usage and potential service issues.

What does an API key do in AWS API Gateway?

A Identifies and tracks API callers

B Stores API data

C Runs the API backend

D Creates API documentation

API keys uniquely identify who is calling the API and help track usage.

What is the main purpose of a usage plan?

A To limit API request rates and quotas

B To create API keys

C To store user data

D To deploy the API

Usage plans set limits on how many requests an API key can make to control usage.

Which of these is true about API keys and usage plans?

A API keys control usage limits directly

B Usage plans identify API callers

C API keys identify callers; usage plans set limits

D Neither are related to API security

API keys identify the caller, and usage plans apply limits to those keys.

What happens if you use API keys without usage plans?

A API keys will not work

B You can track usage but not limit it

C Usage plans are created automatically

D API calls are blocked

Without usage plans, you cannot set limits, but you can still track usage with API keys.

Why are usage plans important for API management?

A They replace API keys

B They create API keys

C They store API responses

D They protect APIs from overuse and abuse

Usage plans help protect APIs by limiting how much they can be called.

Explain how API keys and usage plans work together to manage API access in AWS.

Think about who is calling and how much they can call.

Describe why usage plans are important when using API keys in AWS API Gateway.

Consider what happens if there are no limits.