> For the complete documentation index, see [llms.txt](https://docs.ideamarket.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.ideamarket.io/contracts/interestmanager.md).

# InterestManager

The task of the `InterestManager` is to invest `Dai` into an interest-generating protocol. Currently this is implemented as `InterestManagerCompound` which invests into Compound.

* `invest`: Invests `Dai` to generate interest
  * `uint amount`: The amount of `Dai` to invest
  * `returns`: The amount of `cDai` received
* `redeem`: Redeems `Dai`
  * `address recipient`: The address to receive the redeemed `Dai`
  * `uint amount`: The amount of `Dai` to redeem
  * `returns`: The amount of burned `cDai`
* `redeemInvestmentToken`: Redeems `Dai`, but with the `amount` parameter being the amount of `cDai` to convert instead of the amount of `Dai` to redeem.
* `accrueInterest`: Calls the underlying protocol to update the accrued interest which in this case is `cDai.accrueInterest()`
* `withdrawComp`: Transfers `COMP` tokens to the `compRecipient`


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