What are the best authentication methods for APIs with rate limiting?

What are the best authentication methods for APIs with rate limiting?

The best authentication methods for APIs with rate limiting include OAuth 2.0, API keys, and JWT (JSON Web Tokens). Each has its pros and cons depending on your use case.

Can you explain how OAuth 2.0 works in this context?

Sure! OAuth 2.0 allows third-party applications to obtain limited access to an HTTP service, either on behalf of a resource owner or by allowing the third-party application to obtain access on its own behalf.

What are the advantages of using API keys?

API keys are simple to implement and can be easily revoked. They are suitable for server-to-server communication but can be less secure if exposed.

How does rate limiting affect these authentication methods?

Rate limiting can restrict the number of requests a user can make in a given time frame, which is crucial for protecting your API from abuse. It can be applied at the API key or OAuth token level.