---
title: "requestResponse(completionHandler:)"
framework: corenfc
role: symbol
role_heading: Instance Method
path: "corenfc/nfcfelicatag/requestresponse(completionhandler:)"
---

# requestResponse(completionHandler:)

Sends the Request Response command, as defined by the FeliCa card specification, to the tag.

## Declaration

```swift
func requestResponse(completionHandler: @escaping @Sendable (Int, (any Error)?) -> Void)
```

```swift
func requestResponse() async throws -> Int
```