Issue
Here is the code to delete file but dont know how to delete it after certain time as there is no way in documentation.
// Delete content file
var fileToBeDeleted = null
fileToBeDeleted = bucket.file(baseContentUrl)
await fileToBeDeleted.delete()
Solution
Something like this should work:
var fileToBeDeleted = bucket.file(baseContentUrl);
setTimeout(async () => {
await fileToBeDeleted.delete()
// Do something after deleting.
}, 60 * 1000);
Hope it helps.