Data Deduplication

[frabrunelle]

@tfa

Master branch of safe_vault already implements the refund when put data already exists in the network.

Yes, but that’s only for Structured Data and Appendable Data.

If a chunk of ImmutableData already exists, the Vaults send a PUT success (no refund):

https://github.com/maidsafe/safe_vault/blob/310c363ea379cb4d608d065d9007fad52ed97efa/src/personas/data_manager.rs#L482-L488

Immutable Data offers no refund because those chunks aren’t owner specific, so the user gets a PUT success. This isn’t the case for SD/AD and thereby the refunds.