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I'm developing a blockchain project where I have two separate contracts, the ERC20 token contract and the Main one that contains the application logic. I need to be able to move users' tokens as I like from the main contract without having them do anything. How can I control users balances from the external contract?

Thank you a lot, I'm new to Ethereum developing and trying to learn.

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You just need to create a function in contracts which burns the tokens from current contract and another function which updates the token in mapping.

Keep the function only admin accessible, and call the functions.

  • Alternatively, just have the allowance for everyone from the main contract be unlimited, so it can always do a transferFrom – flygoing Jul 21 '18 at 17:21

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