Api

Introduction In the modern world of distributed systems, mobile apps, single‑page applications (SPAs), and microservices, the traditional session‑based authentication model—where a server stores a user’s login state in memory or a database and the client presents a session identifier cookie—has become increasingly cumbersome. Network latency, horizontal scaling, and the rise of stateless APIs have driven developers toward token‑based authentication. Tokens enable a client to prove its identity without requiring the server to keep per‑user state, making authentication more scalable, portable, and flexible. ...

Introduction OAuth (Open Authorization) is the de‑facto standard for delegated access on the web. While most developers interact with OAuth as a black‑box flow—“redirect the user, get a token, call the API”—the real power (and the most common source of security bugs) lies in the cryptographic algorithms that underpin the protocol. Understanding these algorithms is essential for: Designing secure client‑server integrations. Auditing third‑party applications for compliance. Implementing custom grant types or token formats. This article provides an exhaustive, 2000‑3000‑word exploration of the algorithms that drive both OAuth 1.0a and OAuth 2.0, including practical code snippets, real‑world use‑cases, and guidance on picking the right approach for your product. ...

Introduction JSON Web Tokens (JWT) have become a cornerstone of modern web authentication and authorization. From single-page applications (SPAs) to micro‑service architectures, JWTs provide a stateless, portable, and language‑agnostic way to convey claims about a user or system. Yet, despite their popularity, developers often misuse or misunderstand JWTs, leading to security vulnerabilities, scalability headaches, or unnecessary complexity. In this article we will explore JWT from first principles to advanced real‑world usage. You will learn: ...

Table of Contents Introduction Understanding the Cloudflare API Landscape 2.1 REST API vs GraphQL API 2.2 Versioning and Endpoint Structure Authentication & Authorization 3.1 API Keys 3.2 API Tokens 3.3 Service Tokens for Workers Core Use‑Cases 4.1 DNS Management 4.2 Firewall & Security Rules 4.3 Cache Purge & Performance Tuning 4.4 Deploying Workers & KV Stores 4.5 Analytics & Reporting Practical Code Examples 5.1 cURL Quickstart 5.2 Python (requests) Wrapper 5.3 Node.js (axios) Integration 5.4 Full‑Featured CLI Tool Skeleton Error Handling, Rate Limiting & Retries Best Practices & Security Recommendations Advanced Topics 8.1 Using the GraphQL API for Bulk Operations 8.2 Zero‑Trust Integration via Cloudflare Access API Conclusion Resources Introduction Cloudflare has become the de‑facto platform for delivering fast, secure, and reliable web experiences. While most users interact with Cloudflare through its web dashboard, the real power lies in its API. The Cloudflare API lets you automate virtually every action you can perform in the UI—creating DNS records, configuring firewall rules, deploying serverless Workers, and pulling analytics data—all from scripts, CI/CD pipelines, or custom tooling. ...

Introduction The Model Context Protocol (MCP) is rapidly becoming a foundational layer for connecting AI models to external tools, data sources, and services in a standardized way. As more powerful capabilities are exposed to models—querying databases, sending emails, acting in SaaS systems—authorization becomes a central concern. This article walks through: What MCP is and how resources fit into its design What link resources are and why they matter How link resources are typically used to drive authorization flows Example patterns for building MCP servers that handle auth securely Best practices and common pitfalls The goal is to give you a solid mental model for how MCP authorization with link resources works in practice, so you can design safer, more capable integrations. ...