I used to be able to use the Google+ API for this, but that API is being shutdown.
I'm wondering if there exists a way to both
- Get the URL for a user's profile image
- Know whether or not the image is Google's default image, or an image set by the user
I've found other Google APIs that provide an image URL, such as oauth2.userinfo.get, but I have been unable to find an API provides something like Google+'s isDefault
field.