Scalable Payment Processing System
    Stage 1 of 5
    Challenge Context

    An e-commerce platform needs to process payments from customers using various payment methods (credit cards, digital wallets, bank transfers) with reliable transaction records.

    As the Technical Lead, you've been tasked with addressing this challenge. The CTO and CPO have outlined the following requirements:

      Create a core payment processing service that can handle multiple payment methods and maintain transaction records

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