posthog-react-native-super-properties

posthog.ts

import { Linking } from "react-native"
import PostHog from 'posthog-react-native'
import AsyncStorage from '@react-native-async-storage/async-storage';
import { v4 as uuidv4 } from 'uuid';


const getSessionId = async () => {
    // You could get something remotely from an API or just store a unique ID

    let sessionId = await AsyncStorage.getItem('my-session-id')

    if (!sessionId) {
        sessionId = uuidv4()

        await AsyncStorage.setItem('my-session-id', sessionId)
    }
    
    return sessionId
}

let sessionId = getSessionId();

await PostHog.setup('my-site-id', {})

// Your wrapped functions to include the sessionId in every event
export const capture = async (event: string, properties = {}) => {
  return await PostHog.capture(event, {
    ...properties,
    session_id: sessionId,
  });
}

export const screen = async (name: string, properties = {}) => {
  return await PostHog.screen(name, {
    ...properties,
    session_id: sessionId,
  });
};

export const openLink = (url: string) => {
    // Naieve appending of query param
    url = url.includes("?") ? `${url}&session_id=${sessionId}`: `${url}?session_id=${sessionId}`
    Linking.openURL(url);
    
    // Now on your website you can check for the `session_id` param and add it to your tracking the same way as here.
}