Sharing a Realm via a QR code using ZXing
Realm offers a nice technique to share Realms with other users using the PermissionOffer and the PermissionOfferResponse objects. The idea is that you can provide a token that an other user can use to connect to your data store. In this blogpost we will use this flow in combination with a QR code -generated by ZXing- to let an other user connect to a data store and start a chat (or anything).
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