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I have been reading about giving data access from a smart contract, but I could not find good and precise documentation/information about that. I would like to make a smart contract where a user gives access to its data to another one.

Could anyone explain to me how it works? Where can I find good information about that? Is there any example of a smart contract which gives data access?

closed as too broad by shane, Shawn Tabrizi, smarx, flygoing, Ismael Nov 19 '18 at 20:27

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