iOS SDK

// Add the below lines to Package.swift
let package = Package(
  // ...
  dependencies: [
    .package(url: "https://github.com/fingerprintjs/fingerprintjs-pro-ios", from: "2.0.0")
  ],
  // ...
)

# Add the below line to the Podfile
pod 'FingerprintPro', '~> 2.0'

Task {
  do {
    // Get a `visitorId` or, otherwise, time-out after 5 seconds.
    let visitorId = try await client.getVisitorId(timeout: 5.0)
    print(visitorId)
  } catch {
    print(error.localizedDescription)
  }
}

Task {
  do {
    // Get a `sealedResult`.
    let response = try await client.getVisitorIdResponse()
    if let sealedResult = response.sealedResult {
      print(sealedResult)
    }
  } catch {
    print(error.localizedDescription)
  }
}

// Create location permission helper.
let helper = FingerprintProFactory.getLocationPermissionHelperInstance()
helper.delegate = LocationPermissionDelegateImpl()

class LocationPermissionDelegateImpl: NSObject, LocationPermissionDelegate {
var authorizationStatus: CLAuthorizationStatus = .notDetermined

// Request permission or prompt to change settings.
func locationPermissionHelper(
    _ helper: LocationPermissionHelperProviding,
    shouldShowLocationRationale rationale: LocationPermissionRationale
) {
    switch rationale {
    case .needInitialPermission:
        helper.requestPermission()
    case .upgradeToPrecise:
        helper.requestPermanentPrecisePermission()
    case .needSettingsChange:
        helper.requestPermanentPrecisePermission()
    @unknown default:
        os_log("Received unknown rationale")
    }
}

// React to permission state changes.
  func locationPermissionHelper(
      _ helper: LocationPermissionHelperProviding,
      didUpdateLocationPermission status: CLAuthorizationStatus
  ) {
      authorizationStatus = status
  }
}

/// Represents reasons for showing a location permission rationale to the user.
public enum LocationPermissionRationale {

    /// The app has not yet requested any location permissions.
    /// A rationale should be shown before requesting for the first time.
    case needInitialPermission

    /// The user has denied or restricted location access.
    /// A rationale should be shown with instructions to change settings manually.
    case needSettingsChange

    /// The app has "When In Use" permission, but only reduced (approximate) accuracy is granted.
    /// A rationale should be shown encouraging the user to enable full (precise) accuracy via settings
    /// or give it temporarily.
    case upgradeToPrecise
}

let client = FingerprintProFactory.getInstance("<your-api-key>")

// Associate an account number to this request.
var metadata = Metadata(linkedId: "accountID")
// Associate additional metadata to this request.
metadata.setTag("purchase", forKey: "actionType")
metadata.setTag(10, forKey: "purchaseCount")

Task {
  // Get a `visitorId`.
  if let visitorId = try? await client.getVisitorId(metadata) {
    print(visitorId)
  }
}

do {
  let visitorId = try await client.getVisitorId()
  print(visitorId)
} catch FPJSError.networkError(let error) {
  print("Network error: \(error.localizedDescription)")
  // Handle network error (e.g. check Internet connection and try again)
} catch {
  print("Could not obtain visitor ID due to an error: \(error.localizedDescription)")
}

/// A type that represents a single key/value parameter with the library integration
/// information.
public typealias IntegrationInfo = (String, String)

/// A library configuration specifying various options for configuring the Fingerprint Client
/// instance.
public struct Configuration: Sendable {
  /// A public API key obtained from [Fingerprint Dashboard](https://dashboard.fingerprint.com).
  public var apiKey: String
  /// The Fingerprint Server API region.
  public var region: Region
  /// An array of key/value parameters identifying a particular library integration.
  ///
  /// This property should only be used when creating an integration wrapper around the library
  /// (e.g. Flutter or React Native wrapper).
  public var integrationInfo: [IntegrationInfo]
  /// A Boolean value that determines whether the backend should respond with an extended
  /// result. See
  /// [developer documentation](https://dev.fingerprint.com/docs/ios-sdk#extendedresponseformat
  public var extendedResponseFormat: Bool

  /// Creates a library configuration object with the specified parameters.
  ///
  /// - Note: API keys are region-specific, so make sure you have selected the correct region
  ///         when calling this initializer.
  ///
  /// - Parameters:
  ///   - apiKey: A public API key obtained from 
  ///             [Fingerprint Dashboard](https://dashboard.fingerprint.com).
  ///   - region: The Fingerprint Server API region. Defaults to ``Region/global``.
  ///   - integrationInfo: An array of key/value parameters identifying a particular library
  ///                      integration. Defaults to an empty array.
  ///   - extendedResponseFormat: A Boolean value that determines whether the backend should 
  ///                             respond with an extended result. Defaults to `false`.
  public init(
      apiKey: String,
      region: Region = .global,
      integrationInfo: [IntegrationInfo] = [],
      extendedResponseFormat: Bool = false
  ) {
    self.apiKey = apiKey
    self.region = region
    self.integrationInfo = integrationInfo
    self.extendedResponseFormat = extendedResponseFormat
  }
}

/// An error type that indicates problems with the device fingerprinting.
public enum FPJSError: Error {
  /// An error that indicates the server URL is invalid.
  case invalidURL
  /// An error that indicates the integration info URL parameters are invalid.
  case invalidURLParams
  /// An API error returned by the Fingerprint backend.
  case apiError(APIError)
  /// A network error.
  case networkError(Error)
  /// A JSON parsing error that indicates the request body is malformed.
  case jsonParsingError(Error)
  /// An error that indicates the response is invalid.
  case invalidResponseType
  /// An error that indicates the client session timed out.
  case clientTimeout
  /// Unknown error.
  case unknownError
}

/// A Fingerprint Server API error.
public struct APIError: Decodable, Sendable {
  /// The API version.
  public let version: String
  /// The identifier that uniquely identifies a request.
  public let requestId: String
  /// The error details.
  public let errorDetails: ErrorDetails?
}

public extension APIError {
  /// The details about a reason that the API request failed.
  struct ErrorDetails: Decodable {
    /// The error code, as defined by ``APIErrorType`` enum.
    public let code: APIError.Code?
    /// A detailed error message.
    public let message: String
  }

  /// An enumeration representing known Fingerprint API error codes.
  enum Code: String, Decodable, Sendable {
    /// The API token is missing.
    case tokenRequired = "TokenRequired"
    /// Invalid API token.
    case tokenNotFound = "TokenNotFound"
    /// The API token expired.
    case tokenExpired = "TokenExpired"
    /// Malformed request body or parameters.
    case requestCannotBeParsed = "RequestCannotBeParsed"
    /// Request failed.
    case failed = "Failed"
    /// A server connection timeout.
    case requestTimeout = "RequestTimeout"
    /// Request rate limit exceeded.
    case tooManyRequests = "TooManyRequests"
    /// The API key does not match a selected region.
    case wrongRegion = "WrongRegion"
    /// Subscription is not active for the provided API key.
    case subscriptionNotActive = "SubsriptionNotActive"
    /// This app is not authorized to make identification requests.
    case packageNotAuthorized = "PackageNotAuthorized"
    case originNotAvailable = "OriginNotAvailable"
    case headerRestricted = "HeaderRestricted"
    case notAvailableForCrawlBots = "NotAvailableForCrawlBots"
    case notAvailableWithoutUA = "NotAvailableWithoutUA"
    case unsupportedVersion = "UnsupportedVersion"
    case installationMethodRestricted = "InstallationMethodRestricted"
    case hostnameRestricted = "HostnameRestricted"
    case invalidProxyIntegrationSecret = "InvalidProxyIntegrationSecret"
    case invalidProxyIntegrationHeaders = "InvalidProxyIntegrationHeaders"
    case proxyIntegrationSecretEnvironmentMismatch = "ProxyIntegrationSecretEnvironmentMismatch”
  }
}

/// The IP address information.
public struct IPLocation: Equatable, Codable, Sendable {
  /// The city component of the IP address.
  public let city: IPGeoInfo?
  /// The country component of the IP address.
  public let country: IPGeoInfo?
  /// The continent component of the IP address.
  public let continent: IPGeoInfo?
  /// The longitude in degrees.
  public let longitude: Float?
  /// The latitude in degrees.
  public let latitude: Float?
  /// The postal code of the IP address.
  public let postalCode: String?
  /// The time zone of the IP address.
  public let timezone: String?
  /// The approximate accuracy radius in kilometers around the IP address location.
  public let accuracyRadius: UInt?
  /// The subdivisions (such as a county or other region) associated with the IP address.
  public let subdivisions: [IPLocationSubdivision]?
}

/// A structure containing the location name and code.
/// It can represent a country, city or continent.
public struct IPGeoInfo: Equatable, Codable, Sendable {
  /// The location name.
  public let name: String
  /// The area, country or continent code.
  public let code: String?
}

/// A structure describing the location's subdivision.
public struct IPLocationSubdivision: Equatable, Codable, Sendable {
  /// The ISO code.
  let isoCode: String
  /// The subdivision name.
  let name: String
}

/// The Fingerprint Server API region.
public enum Region: Equatable, Sendable {
  /// A default Global (US) region.
  case global
  /// A European (EU) region.
  case eu
  /// An Asia-Pacific (APAC) region.
  case ap
  /// A custom endpoint with optional fallback endpoints, as defined by the `domain` and `fallback`
  /// associated values.
  case custom(domain: String, fallback: [String] = [])
}