Getting app launch arguments

Capacitor
1

I have an app using Ionic 8/Capacitor 6 and am beginning to run automated testing using maestro as my test tool. I have a situation where I’d like to determine if the app is running using maestro to mock certain behaviors (e.g. barcode reading). Here’s my app info:

Ionic:
   Ionic CLI                     : 7.2.0 (/Users/ken/.nvm/versions/node/v20.15.1/lib/node_modules/@ionic/cli)
   Ionic Framework               : @ionic/angular 8.2.7
   @angular-devkit/build-angular : 18.2.0
   @angular-devkit/schematics    : 18.2.0
   @angular/cli                  : 18.2.0
   @ionic/angular-toolkit        : 11.0.1

Capacitor:
   Capacitor CLI      : 6.1.2
   @capacitor/android : 6.1.2
   @capacitor/core    : 6.1.2
   @capacitor/ios     : 6.1.2

Looking at the maestro docs, I see that the app can be started with custom launch arguments and I’d like to use that to determine if maestro is being used.
The docs say

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Their examples of retrieving launch arguments are geared toward native apps or react native (https://maestro.mobile.dev/api-reference/commands/launchapp#launch-arguments) but I can’t find a way to do this using Capacitor/Ionic.

I know that apps normally don’t have startup arguments but this is specifically for testing and won’t be used otherwise. This app does not have (and doesn’t need) a custom URL scheme so passing parameters that way is not an option. Can anybody point me in the right direction of how to retrieve launch arguments or a plugin that allows me to do this?

Thanks!

2

I’m looking for this same thing, for roughly the same reason.

I did a quick search of the various github repos listed for the community plugins, but nothing referenced processInfo, so it seems like no one’s built a plugin for it yet. (or my search skills are lacking…)

Shouldn’t be too hard to build a simple one though. I’ll work on it when I get a chance.

3

what does process.argv have in your typescript code? That would be the ideal solution :slight_smile:

4

first step in creating a plugin is making sure there isn’t someone that already is working on it. Here’s the proposal: LaunchArguments · Issue #223 · capacitor-community/proposals · GitHub