@Driesel wrote:
Hi all,
for my app I want something like the account check in whatsapp.
I mean, when you open your address book in whatsapp you see which user had an existing whatsapp-account.I know how to get access to the local address book and from my provider (backhand.com) i could receive the registered email-adresses for my app.
But i don't know how to check this?
I think the only way is to transfer the contacts (hashed) to the server, right?
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