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A contract that recycles all your [DAI, USDC, USDT, TUSD, yCRV] into yCRV and further into yUSD vault.

You need to grant allowances on up to five tokens to this contract before using it. This needs to be done for all non-zero amount and it only needs to be done once.

Use the Brownie script to automatically set all approvals and recycle all your coins into yUSD.

$brownieaccountsimportuserkeystore.json$brownierunrecycle--networkmainnet

1. Callapprove(0x5F07257145fDd889c6E318F99828E68A449A5c7A, 115792089237316195423570985008687907853269984665640564039457584007913129639935) for all non-zero balances:

• DAI
• USDC
• USDT
• TUSD
• yCRV

2. Callrecycle()here.

0x5F07257145fDd889c6E318F99828E68A449A5c7A

• Add support for yCRV deposits
• Add a Brownie script to set the needed approvals and recycle
• Honor allowances inrecycle(), depositmin(balance, allowance)
• Add an ability to recycle custom amounts withrecycle_exact(dai, usdc, usdt, tusd, ycrv)

Reviewed by:

• @iamdefinitelyahuman

0x78e307F6e8584DaA0D85aDD918c0e3e4dD469A9C

Initial release, featuresrecycle() function which converts [DAI, USDC, USDT, TUSD] to yUSD.

Reviewed by:

• @samczsun
• @andrecronje
• @vshvsh

TBD

Check fortoken.balanceOf(user) andtoken.allowance(user, recycle) for each of DAI, USDC, USDT, TUSD, yCRV

For tokens with non-zero balances andbalance > allowance, calltoken.approve(recycle, MAX_UINT256)

At this point you can callrecycle.recycle()

You can get the exact amounts in and out from the transaction receipt event calledRecycled(user, sent_dai, sent_usdc, sent_usdt, sent_tusd, sent_ycrv, received_yusd)

You can also allow depositing partial amounts (sliders?) or skipping some of the coins (checkboxes?). For this you need to calculate the exact amounts and pass them intorecycle.recycle_exact(dai, usdc, usdt, tusd, ycrv)

Note that USDT is not ERC20-compliant, it doesn't return bool forapprove and also requires first resetting theallowance to zero before changing it to another value.