[Solved] Consider an Anti-corruption Layer function that converts legacy customer data {"cust_id": 101, "cust_name":... What will be the output if the legacy data is {"cust_id": 202, "cust_name": "Bob"}? | Microservices

Microservices - Migration from Monolith

Consider an Anti-corruption Layer function that converts legacy customer data {"cust_id": 101, "cust_name": "Alice"} into a new model {"id": 101, "name": "Alice"}. What will be the output if the legacy data is {"cust_id": 202, "cust_name": "Bob"}?

A{"id": "cust_id", "name": "cust_name"}

B{"cust_id": 202, "cust_name": "Bob"}

C{"id": 202, "name": "Bob"}

D{"id": null, "name": null}

Step-by-Step Solution

Solution:

Step 1: Analyze the translation logic
The layer maps cust_id to id and cust_name to name.
Step 2: Apply the translation to the input
Input {"cust_id": 202, "cust_name": "Bob"} becomes {"id": 202, "name": "Bob"}.
Final Answer:
{"id": 202, "name": "Bob"} -> Option C
Quick Check:
Field mapping is direct and consistent [OK]

Quick Trick: Anti-corruption Layer maps legacy fields to new model fields [OK]

Common Mistakes:

Returning legacy data without translation
Using field names as string literals instead of values
Assigning null values when data exists

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More Microservices Quizzes

What will be the output if the legacy data is {"cust_id": 202, "cust_name": "Bob"}?

Step 1: Analyze the translation logic

Step 2: Apply the translation to the input

Final Answer:

Quick Check:

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