Access to Analytics in Swift / Objective C (For hybrid react-native / bare workflow)

[mkrn]

Summary

Is there a way to expose some modules from the iOS native part of the app from Swift or ObjectiveC?
Pre-2.0 version I was able to achieve that with

import Segment

class Track {
  static func track(event: String, properties: [String : Any]?) {
    Analytics.shared().track(event, properties: properties);
  }
}

The workaround seems to add Analytics for iOS separately. Is there a good way to share identity between 2 clients?

Proposed Solution

Expose some of the javascript methods so they can be called from ObjectiveC or Swift side of the app.

[oscb]

We don't currently have a way to do this right now. The old library was just a wrapper over the Analytics.iOS/Android libraries whereas v2 was written with RN in mind from the start so we don't have yet exposed methods to the native side.

But this is a good idea. I can see the value here. We will put this in our roadmap!

[mkrn]

Thanks @oscb

I end up using a workaround by sending iOS events to javascript side. This example doesn't support attributes, but you can add them:

import { DeviceEventEmitter, NativeEventEmitter, NativeModules, Platform } from 'react-native'
const emitter = Platform.OS === 'ios' ? new NativeEventEmitter(NativeModules.RNEventEmitter) : DeviceEventEmitter

const listener = emitter.addListener("track", (eventname) => {
      this.segmentClient.track(eventname, {  });
})

And in swift Track.swift

import Foundation

class Track {
  static func track(event: String, properties: [String : Any]?) {
    RNEventEmitter.emitter.sendEvent(withName: "track", body: event)
  }
}

So maybe adding a swift or Objective C class would emit events in JS library would do it.