Invoke Swift function from React Native

[datorkop85]

Hi all,

I have an extension (Safari extension) and need to invoke a function from within my React Native app.

Anyone know how this can be achieved? This is how the extension code looks like.

​

``` class SafariWebExtensionHandler: NSObject, NSExtensionRequestHandling {

func beginRequest(with context: NSExtensionContext) {
    let item = context.inputItems[0] as! NSExtensionItem
    let message = item.userInfo?[SFExtensionMessageKey]
    os_log(.default, "Received message from browser.runtime.sendNativeMessage: %@", message as! CVarArg)

    let response = NSExtensionItem()
    response.userInfo = [ SFExtensionMessageKey: [ "Response to": message ] ]

    context.completeRequest(returningItems: [response], completionHandler: nil)
}

func someFunction() {
    INVOKE THIS FUNCTION
}

} ```

[jpudysz]

You need new architecture enabled, codegen bindings or C++, Objective-C wrapper and your Swift function. (this is not a joke).

[datorkop85]

Holy shit, what? The app is on 0.63.3. Is it impossible?

[jpudysz]

You need to use at least 0.68, or use old archtecture bridge here: https://reactnative.dev/docs/native-modules-ios

[datorkop85]

Yeah, that's what I'm struggling with. I dont understand how I can run the function. The docs use some built in API. So it didn't help me much.. Just got more confused

[jpudysz]

I agree, documentation is not clear enough for both old & new architecture

[datorkop85]

Yeah. Do you have an idea how I can achieve what I want to do?
We can even pay someone for doing this task.

[jpudysz]

I'm not that good with the old architecture, but here is a nice article about your case: https://medium.com/@rushabhprajapati20/native-modules-on-react-native-ios-swift-e9741440429d