JWT

JSON Web Token (JWT)

A JSON Web Token (JWT) is a compact, URL-safe, digitally signed token format used to represent claims — such as a user's identity or permissions — that can be…

JWT Bearer Authentication

Understand how to secure ASP.NET Core Web APIs with stateless JSON Web Tokens issued and validated via the JWT bearer scheme.

Authentication Basics and JWT

Learn how authentication works in web APIs and how JSON Web Tokens (JWT) provide a stateless way to verify user identity.

API Security Best Practices Cheat Sheet

Authentication, authorization, input validation, and rate-limiting patterns to protect REST and GraphQL APIs in production.

How Do You Manage User Sessions Across Multiple Servers?

Distributed session management means ensuring a logged-in user’s session data is available no matter which of many stateless application servers handles their…

Cookies vs Sessions vs JWT

A cookie is a small piece of data the browser stores and sends back with each request; a session keeps user state on the server and uses a cookie holding only…

What Are JWT Security Best Practices?

Secure JWT usage means always validating the signature with a fixed, expected algorithm on the server, keeping tokens short-lived with refresh rotation, storin…

What Are the Main API Authentication Methods?

The most common API authentication methods are API keys for simple service-to-service identification, HTTP Basic Auth for quick but weak username/password chec…

What Is Refresh Token Rotation?

Refresh token rotation is a security pattern where every time a refresh token is used to obtain a new access token, the server also issues a brand-new refresh…