Ionic AppRate fails, incomplete object? - ionic-framework

Question

I am trying to add AppRate to my app based on the
https://ionicframework.com/docs/v3/native/app-rate/
example
TypeError: AppRate.preferences.openUrl is not a function. (In
'AppRate.preferences.openUrl(iOSStoreUrl)', 'AppRate.preferences.openUrl' is undefined)
That method is indeed missing on the object when inspected in debugger.
On the plugin documentation they add the method manually.
https://github.com/pushandplay/cordova-plugin-apprate
This approach fails for me however, too. My ionic app has no window object.

Answer 1

I had the same issue, but in ionic 4.
I solved it, firstly, reinstall the plugin from git repository or cordova plugins registry (to make sure we have the function openUrl added) and adding the missing method to #ionic-native/app-rate/ngx/index.d.ts like :
export interface AppRatePreferences {
...
...
...
openUrl?:(url:string) => void;
}
And after where you have used the call of the plugin, you add openUrl: appRate.preferences.openUrl to preferences properties like :
appRate.preferences = {
displayAppName: '',
storeAppURL: {
ios: '<my_app_id>',
android: 'market://details?id=<package_name>',
windows: 'ms-windows-store://pdp/?ProductId=<the apps Store ID>',
blackberry: 'appworld://content/[App Id]/'
},
openUrl: appRate.preferences.openUrl
};
Hope it helps you.

Answer 2

For ionic 3, Make sure the latest versions are installed with support for #ionic-native/app-rate#4
In my case I have solved it by installing version 4 of #ionic-native and version 1.4.0 of apprate.
Try this:
$ ionic cordova plugin rm cordova-plugin-apprate
$ ionic cordova plugin add cordova-plugin-apprate#1.4.0 --save --exact
$ npm install --save #ionic-native/app-rate#4