Executive Summary GoCardless enforces a production API rate limit of 1,000 requests per minute to maintain platform stability across all integrated SaaS clients. Exceeding this threshold triggers an HTTP 429 “Too Many Requests” response, halting mandate creation and disrupting payment flows. Three native HTTP headers — RateLimit-Limit, RateLimit-Remaining, and RateLimit-Reset — provide real-time quota visibility … Read more
Managing a Braintree API duplicate transaction sync silent drop is one of the most deceptive reliability challenges a SaaS architect can face. On the surface, Braintree’s duplicate protection appears to be a pure consumer safety feature — and it is. But beneath that protection layer lies a critical architectural trap: when the gateway silently rejects … Read more
📋 Executive Summary A Stripe webhook signature validation failed 401 error occurs when your server cannot cryptographically verify that an incoming webhook request was genuinely sent by Stripe. The three most common root causes are: using the wrong signing secret for the environment, passing a parsed (modified) request body instead of the raw payload, and … Read more
Designing a production-grade Multi-tenant SaaS Architecture on AWS is one of the most consequential decisions a cloud architect will make. It directly determines your platform’s scalability ceiling, security posture, and long-term cost trajectory. This guide moves beyond surface-level theory to deliver actionable architectural patterns — from isolation model selection to serverless infrastructure design and tenant-aware … Read more