Design patterns · interview question
In an e-commerce application, you must integrate a legacy payment gateway using an outdated API with your modern payment processing system. Which pattern is appropriate?
Multiple choiceMediumchapter-13-curatedpremiumdesign-patternsproxy-and-adapter
Answer and explanation
Correct answer
B. Adapter
Why
The Adapter pattern is suitable for integrating systems with incompatible interfaces, such as connecting a legacy API with a modern system.
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