# FingerPrint Structure Reference



## Scope and provenance

- Product: mobile
- Status: Imported reference snapshot. Import date is not a verification date or guarantee of current release support.
- SDK version: Not declared for this page. Versions in examples must not be assumed current.
- Environment: Page-specific. Confirm the environment host, credentials, and service configuration; do not infer them from another product.
- Source: https://documentation.idmission.com/identity/iOS-SDK-2/Structs/FingerPrint.html
- Imported at: 2026-10-25T05:00:44.899Z
- Canonical page: https://docs.idmission.com/mobile/reference/ios/Structs/FingerPrint
- Agent index: https://docs.idmission.com/llms.txt

---

<a id="fingerprint"></a>

# FingerPrint

```
public struct FingerPrint : Encodable
```

Child structure of `FingerPrintData`.

<a id="/Enumerations"></a>

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<a id="//apple_ref/swift/Section/Enumerations"></a>

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[](https://docs.idmission.com/markdown/mobile/reference/ios/Structs/FingerPrint.md#/Enumerations)

<a id="enumerations"></a>

### Enumerations

- <a id="/s:17IDentitySDK_Swift11FingerPrintV8PositionO"></a>

  <a id="//apple_ref/swift/Enum/Position"></a>

  `Position`

  Finger position.

  [See more](https://docs.idmission.com/markdown/mobile/reference/ios/Structs/FingerPrint/Position.md)

  <a id="declaration"></a>

  #### Declaration

  Swift

  ```
  public enum Position : String, Encodable
  ```

<a id="/Properties"></a>

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<a id="//apple_ref/swift/Section/Properties"></a>

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[](https://docs.idmission.com/markdown/mobile/reference/ios/Structs/FingerPrint.md#/Properties)

<a id="properties"></a>

### Properties

- <a id="/s:17IDentitySDK_Swift11FingerPrintV6fpDataSSvp"></a>

  <a id="//apple_ref/swift/Property/fpData"></a>

  `fpData`

  Base64 finger print data

  <a id="declaration-2"></a>

  #### Declaration

  Swift

  ```
  public var fpData: String
  ```

- <a id="/s:17IDentitySDK_Swift11FingerPrintV10fpPositionAC0G0Ovp"></a>

  <a id="//apple_ref/swift/Property/fpPosition"></a>

  `fpPosition`

  This is the code value for finger position.

  <a id="declaration-3"></a>

  #### Declaration

  Swift

  ```
  public var fpPosition: Position
  ```

- <a id="/s:17IDentitySDK_Swift11FingerPrintV14imageHashValueSSSgvp"></a>

  <a id="//apple_ref/swift/Property/imageHashValue"></a>

  `imageHashValue`

  Image hash value.

  <a id="declaration-4"></a>

  #### Declaration

  Swift

  ```
  public var imageHashValue: String?
  ```

- <a id="/s:17IDentitySDK_Swift11FingerPrintV4nfiqSSSgvp"></a>

  <a id="//apple_ref/swift/Property/nfiq"></a>

  `nfiq`

  NIST Fingerprint Image Quality (NFIQ).

  <a id="declaration-5"></a>

  #### Declaration

  Swift

  ```
  public var nfiq: String?
  ```

<a id="/Initialization"></a>

[]()

<a id="//apple_ref/swift/Section/Initialization"></a>

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[](https://docs.idmission.com/markdown/mobile/reference/ios/Structs/FingerPrint.md#/Initialization)

<a id="initialization"></a>

### Initialization

- <a id="/s:17IDentitySDK_Swift11FingerPrintV6fpData0F8Position14imageHashValue4nfiqACSS_AC0H0OSSSgAJtcfc"></a>

  <a id="//apple_ref/swift/Method/init(fpData:fpPosition:imageHashValue:nfiq:)"></a>

  `init(fpData:fpPosition:imageHashValue:nfiq:)`

  Designated initializer.

  <a id="declaration-6"></a>

  #### Declaration

  Swift

  ```
  public init(fpData: String,
              fpPosition: Position,
              imageHashValue: String? = nil,
              nfiq: String? = nil)
  ```

  <a id="parameters"></a>

  #### Parameters

  |                  |                                              |
  | ---------------- | -------------------------------------------- |
  | `fpData`         | Base64 finger print data                     |
  | `fpPosition`     | This is the code value for finger position.  |
  | `imageHashValue` | Image hash value.                            |
  | `nfiq`           | NIST Fingerprint Image Quality (NFIQ).       |

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