CODEWITHSUNDEEP
androidgoogle-nearby
Mário Ary Brum Heinzen
Mário Ary Brum Heinzen

Reputation: 3

Does Google Nearby Connections ensure message delivery on both devices?

I am using Google Nearby Connections API in a React Native application to transfer data between two Android devices.

This data needs to be erased from the "sender device" after the confirmation from the "receiver device", and then permanently saved to the device that received it.

I'm using the onPayloadTransferUpdate(SUCCESS) method on both devices as confirmation of data delivery.

Does the implementation of the API ensure that this method will run simultaneously on both devices in order to prevent data from coexisting after the transfer or that it will not be lost? Or is it necessary to implement in the application the logic to guarantee the commit of this transaction? I was thinking in something like two-phase commit.

Upvotes: 0

Views: 131

Answers (1)

Xlythe
Xlythe

Reputation: 2033

It's safer to do the two-phase commit. When the sender receives onPayloadTransferUpdate(SUCCESS), it only means that the bits have left the device. It's only after the receiver receives onPayloadTransferUpdate(SUCCESS) that the transfer is complete.

Upvotes: 1

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