TAO Social-Graph Architecture: Requirements, Minimal Design, and Operational Checks
How a distributed social-graph data store balances read-your-writes consistency, cross-region replication, and operational reliability at scale.
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Implementing Facebook Login (OAuth 2.0) for a Web Application
Step‑by‑step guide to adding Facebook Login (OAuth 2.0) to a web app: register the app, handle the redirect, exchange the code for a token, and fetch the user profile via the Graph API.
How Facebook’s Persisted Queries Tame GraphQL Overhead at Scale
Persisted queries replace full GraphQL strings with short hashes, reducing bandwidth and enabling safe allow‑list enforcement in large‑scale APIs.
graphqlDiagnosing TAO Read Latency Spikes: Cache Miss Storms and Hot Object Amplification
A diagnostic guide for elevated read latency on Facebook's TAO social graph serving path, covering cache miss storms, hot key amplification, and ordered production checks.
memcachedDistributed Memcached Caching: Client-Side Hashing vs Centralized Lookup
A decision guide for distributed Memcached caching: compare client-side hashing with centralized lookup, understand durability trade-offs, and validate key distribution before rollout.
Designing a Minimal Secure Facebook Login Integration for a Web Application
Learn how to implement a minimal, secure Facebook Login flow using OAuth 2.0, keeping the app secret server‑side, exchanging codes for long‑lived tokens, and storing them in an HttpOnly cookie.
How Facebook’s GraphQL API Cuts Data Over‑Fetch in Mobile & Web Apps
Facebook’s GraphQL API unifies mobile and web data fetching, cutting over‑fetching and network latency. This guide walks through introspection, a real‑world query, caching trade‑offs, and a practical checklist for a smooth integration.
Send Facebook Conversion Events From Your Server
Send conversion events directly to Meta from your server when browser tracking is blocked. Includes payload structure, token setup, testing, and limits.
Diagnosing Cache Stampede in a Memcached-backed Read Path
A diagnostic guide for recognizing and mitigating cache stampede in a Memcached-backed read path. Covers correlated miss and DB spikes, lease and early recompute checks, and escalation criteria.