I need help with balances

Question

I would like to create a balance for each "vault". for example i will have my struct:

struct unnamed {
    string[] crowdFundName;   
}

I would like to add a balance to each vault for example crowdFundName[test] balance is x, crowdFundName[test2] is y.

Answer 1

You can use nested mapping inside your struct for mapping different balances in it. You can see this example:

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;

contract Test {

    struct unnamed {
        mapping(string=>uint) crowdFundName;   
    }

    mapping(address=>unnamed) _map;

    // Add crowdFund
    function addCrowdfund(string memory _nameDeposit, uint _amount) public {
        _map[msg.sender].crowdFundName[_nameDeposit] = _amount;
    }

    // Get specific crowdFund
    function retrieveCrowdfund(string memory _nameDeposit) external view returns(uint) {
        return _map[msg.sender].crowdFundName[_nameDeposit];
    }

}