Let DApp pay total transaction fee of user

Last updated 20 Jan 2023

...

@Verifier(tx)

func verifier() = {

    match(tx) {

        case inv:InvokeScriptTransaction => 

            if (inv.function == "registerUser" && inv.dApp == this && inv.fee == 500000) then

               sigVerify(tx.bodyBytes, tx.proofs[0], fromBase58String(asString(inv.args[5])))

            else

                sigVerify(tx.bodyBytes, tx.proofs[0], tx.senderPublicKey)

        case _ => sigVerify(tx.bodyBytes, tx.proofs[0], tx.senderPublicKey)

    }

}