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Grokking Node.js Design Patterns for Interviews

Hybrid Service Adapter for Fallback APIs

Explore designing a HybridCurrencyAdapter that simplifies calling primary and fallback currency conversion APIs by unifying their interfaces. Learn to manage asynchronous errors and normalize differing response formats for more reliable backend code.

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Problem statement

Suppose your application relies on a third-party API for currency conversion. It also has a backup provider that can take over if the primary API fails or times out. Currently, different parts of the codebase call these providers directly, leading to repeated error handling and ...