grab referrer before loading

modules/expo-google-play-referrer/index.ts

@@ -1,3 +1,3 @@
-import {GooglePlayReferrerModule} from './src/ExpoGooglePlayReferrerModule'
+import {GooglePlayReferrer} from './src/ExpoGooglePlayReferrerModule'
 
-export default GooglePlayReferrerModule
+export default GooglePlayReferrer

modules/expo-google-play-referrer/src/ExpoGooglePlayReferrer.types.ts

@@ -1,8 +1,10 @@
-export type GooglePlayReferrerInfo = {
-  installReferrer: string
-  clickTimestamp: number
-  installTimestamp: number
-}
+export type GooglePlayReferrerInfo =
+  | {
+      installReferrer?: string
+      clickTimestamp?: number
+      installTimestamp?: number
+    }
+  | undefined
 
 export type ExpoGooglePlayReferrerModule = {
   getReferrerInfoAsync(): Promise<GooglePlayReferrerInfo>

modules/expo-google-play-referrer/src/ExpoGooglePlayReferrerModule.android.ts

@@ -2,5 +2,5 @@ import {requireNativeModule} from 'expo-modules-core'
 
 import {ExpoGooglePlayReferrerModule} from './ExpoGooglePlayReferrer.types'
 
-export const BackgroundNotificationHandler =
+export const GooglePlayReferrer =
   requireNativeModule<ExpoGooglePlayReferrerModule>('ExpoGooglePlayReferrer')

modules/expo-google-play-referrer/src/ExpoGooglePlayReferrerModule.ts

@@ -3,7 +3,7 @@ import {
   GooglePlayReferrerInfo,
 } from './ExpoGooglePlayReferrer.types'
 
-export const GooglePlayReferrerModule = {
+export const GooglePlayReferrer = {
   getReferrerInfoAsync(): Promise<GooglePlayReferrerInfo> {
     console.error('getReferrerInfoAsync is only available on Android')
     return Promise.reject('getReferrerInfoAsync is only available on Android')