Joel Adewole
Jul 6, 2022 ⋅ 6 min read

How to write an ERC-4626 token contract for yield-bearing vaults

Joel Adewole Jamstack web developer | Technical writer | React | Python

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One Reply to "How to write an ERC-4626 token contract for yield-bearing vaults"

  1. Great tutorial – really enjoyed it!

    One question – what is the purpose of the ‘shareHolder’ mapping here:

    // a mapping that checks if a user has deposited
    mapping(address => uint256) shareHolder;

    I would think that since each user is issued a vToken after deposit, there is really no explicit need to track deposits anymore, but I may be overlooking something. Hope to build a vault smart contract based on 4626 soon. Thanks!

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