Sending private key to server side

by Koptan   Last Updated April 15, 2019 10:28 AM

I am trying to build new Dapp application for our startup by using web3j , I am facing an issue with signing the transaction from server side , because i need to know the private key for the client (wallet) and it's not best practices to send the the private key over the network .

So the question is : Did anyone solve this issue , or I should keep all the code in frontend-side ?

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