Your question is Cross-Platform Communication for E-Commerce. Take a moment with it on the right.
Talk me through your thinking if you like. When you're confident, submit your answer and I'll grade it like a real screen (7/10 or better passes).
When designing a scalable e-commerce architecture that must integrate web frontend technologies (JavaScript, React, Angular) and native mobile apps (iOS and Android) with backend APIs, what technical approach would you use to ensure seamless and efficient communication across all platforms?