refactor(customer): return redacted customer instead of error

[AmeyWale]

Type of Change

• Bugfix
• New feature
• Enhancement
• Refactoring
• Dependency updates
• Documentation
• CI/CD

Description

Return redacted customer response instead of error when querying deleted customers.

Motivation and Context

Upon merging this PR, the API will return deleted Customer with redacted values instead of error.
#7126

How did you test it?

• Create Customer API Call

curl --location 'http://localhost:8080/customers' \
--header 'Content-Type: application/json' \
--header 'Accept: application/json' \
--data-raw '{
    "email": "[email protected]",
    "name": "John Doe",
    "phone": "999999999",
    "phone_country_code": "+65",
    "description": "First customer",
    "address": {
        "line1": "1467",
        "line2": "Harrison Street",
        "line3": "Harrison Street",
        "city": "San Fransico",
        "state": "California",
        "zip": "94122",
        "country": "US",
        "first_name": "joseph",
        "last_name": "Doe"
    },
    "metadata": {
        "udf1": "value1",
        "new_customer": "true",
        "login_date": "2019-09-10T10:11:12Z"
    }
}'

• Delete API Call for same customer

curl --location --request DELETE 'http://localhost:8080/customers/cus_vl2xIM4vJGaOVanI9rLl' \
--header 'Accept: application/json' \
--header 'api-key: *****'

• Retrieve Customer API call for the same customer

curl --location 'http://localhost:8080/customers/cus_PEkI9z16lQRq2xAXOol5' \
--header 'Accept: application/json' \
--header 'api-key: dev_CN6BIH4qBtQTtH3smdKKJEwcyuaxiQgu9Yv6houFWmaOmgjhLtSNOGFLEDagthEZ'

• Response from the above API Call

{"customer_id":"cus_PEkI9z16lQRq2xAXOol5","name":"Redacted","email":"Redacted","phone":"Redacted","phone_country_code":"Redacted","description":"Redacted","address":{"city":"Redacted","country":"US","line1":"Redacted","line2":"Redacted","line3":"Redacted","zip":"Redacted","state":"Redacted","first_name":"Redacted","last_name":"Redacted"},"created_at":"2025-01-28T07:15:35.740Z","metadata":{"udf1":"value1","new_customer":"true","login_date":"2019-09-10T10:11:12Z"},"default_payment_method_id":null}

Checklist

• I formatted the code cargo +nightly fmt --all
• I addressed lints thrown by cargo clippy
• I reviewed the submitted code
• I added unit tests for my changes where possible

[semanticdiff-com]

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Changed Files

File	Status
crates/router/src/core/customers.rs	61% smaller