Shopify's API suite, including the REST and GraphQL Admin APIs, Storefront API, Payments Apps API, and Shopify Functions API, offers developers versatile tools to customize and automate Shopify stores, integrate third-party services, and enhance e-commerce functionality. However, managing API traffic at scale requires strategic handling of rate limits to maintain platform stability and fair usage. Shopify enforces rate limits using mechanisms like the leaky bucket algorithm and point-based query costs, which vary according to the merchant's plan. Developers must navigate these limitations by optimizing data retrieval, implementing caching, regulating request rates, and incorporating robust error handling and retry policies. Tools like Lunar Gateway assist in these efforts by offering solutions such as smart caching, priority queuing, client-side throttling, and real-time monitoring to ensure efficient API management and application performance.