# Loan Screening DVR

Following the zkPass SDK guideline, BCA Finance which takes the client role of the Proof Verifier,  defines the “Loan Screening” [DVR](https://gl-docs.gitbook.io/zkpass/getting-started/key-concepts/dvr) for users who are applying for the car loan. The requirements for the car loan are encapsulated in a query, which is detailed in the Data Verification Request (DVR). This query is formulated using the zkPass Query language, which is JSON-based.

## <mark style="color:blue;">Query</mark>

The DVR Query for Ramana Maharshi looks like the following.

{% tabs %}
{% tab title="Human Format" %}
All these conditions must be met for the overall criteria to be satisfied:

1. The Document ID (`bcaDocID`) should exactly match "DOC897923CP", which is the document id for BCA Customer Profile.
2. The first name under `personalInfo` should match "Ramana" (case insensitive).
3. The last name under `personalInfo` should match "Maharshi" (case insensitive).
4. The driver's license number under `personalInfo` should match "DL77108108" (case insensitive).
5. The credit rating from Pefindo, found under `financialInfo`, should be equal to or greater than 650.
6. The balance in the savings account, under `financialInfo`, should be equal to or greater than 55,000,000.
   {% endtab %}

{% tab title="JSON" %}
{% code lineNumbers="true" %}

```json
[
  {
    "assign": {
      "loan_application": {
        "and": [
          {
            "==": [
              {
                "dvar": "bcaDocID"
              },
              "DOC897923CP"
            ]
          },
          {
            "~==": [
              {
                "dvar": "personalInfo.firstName"
              },
              "Ramana"
            ]
          },
          {
            "~==": [
              {
                "dvar": "personalInfo.lastName"
              },
              "Maharshi"
            ]
          },
          {
            "~==": [
              {
                "dvar": "personalInfo.driverLicenseNumber"
              },
              "DL77108108"
            ]
          },
          {
            ">=": [
              {
                "dvar": "financialInfo.creditRatings.pefindo"
              },
              650
            ]
          },
          {
            ">=": [
              {
                "dvar": "financialInfo.accounts.savings.balance"
              },
              55000000
            ]
          }
        ]
      }
    }
  },
  {
    "output": {
      "title": "Loan Query Results"
    }
  },
  {
    "output": {
      "result": {
        "lvar": "loan_application"
      }
    }
  },
  {
    "if": {
      "condition": {
        "lvar": "loan_application"
      },
      "then": [
        {
          "output": {
            "name": {
              "dvar": "personalInfo.firstName"
            }
          }
        }
      ],
      "else": [
        {
          "output": {
            "rejected": "Your loan application has been rejected."
          }
        }
      ]
    }
  }
]
```

{% endcode %}
{% endtab %}
{% endtabs %}