What do you do when your product’s performance crumbles, but the APIs you work with are out of your control?
This was the reality we faced while building a fintech payments dashboard. Massive payloads, strict compliance, and scattered APIs were slowing merchants down and wrecking workflows.
In this talk, I’ll walk through our real-world quest to rescue the user experience by leaning on full-stack frameworks like NextJS, and others that let you design effective API handlers and proxies. You’ll see how we profiled true bottlenecks, built a Backend-for-Frontend layer to reshape data, balanced API criticality across the stack, applied caching and resilience architectural strategies.
We’ll also look at the infrastructure side: how to use FaaS/IaaS to manage network constraints, reduce payload impact, and improve reliability without changing the source APIs.
Expect live demos, battle-tested patterns, and hard-earned lessons for building resilient, user-centric apps, front to back, even when the odds aren't on your side.
This talk has been presented at React Summit US 2025, check out the latest edition of this React Conference.

























