---
title: "requestSystemCode(resultHandler:)"
framework: corenfc
role: symbol
role_heading: Instance Method
path: "corenfc/nfcfelicatag/requestsystemcode(resulthandler:)"
---

# requestSystemCode(resultHandler:)

## Declaration

```swift
@preconcurrency func requestSystemCode(resultHandler: @escaping @Sendable (Result<[Data], any Error>) -> Void)
```

```swift
func requestSystemCode(resultHandler: @escaping (Result<[Data], any Error>) -> Void)
```