API Fundamentals guide for Business Analysts

This comprehensive, non-coding guide is specifically designed to equip Business Analysts with essential API knowledge. Starting from scratch, it breaks down complex concepts like the Request-Response cycle, HTTP methods (GET, POST), and essential Status Codes (200, 400, 500). The guide provides practical, ready-to-use API User Stories and crucial negative testing scenarios to ensure BAs can define robust functional requirements. It also includes optional, advanced chapters explaining critical infrastructure concepts like API Gateways, Load Balancers, Caching, and Rate Limiting, allowing BAs to effectively communicate non-functional requirements to development teams and mitigate business risk.