Programmatic Redemptions
a step-by-step guide for redeeming Index Coop products at the smart contract level
Last updated
a step-by-step guide for redeeming Index Coop products at the smart contract level
Last updated
All Index Coop products can be permissionlessly redeemed for their underlying assets at any time. In the absence of app or front-end support, this can be accomplished by interacting directly with the product's issuance module on the chain where it is natively deployed. This guide will provide a step-by-step walkthrough for programmatic redemptions using Etherscan.
Please note that this guide is limited to non-leverage tokens. products are more complex to redeem because of the associated debt positions; a separate guide for leverage token redemptions will be published as soon as it is available.
Each product is represented by a unique token contract, which can be found in the table below. Different products utilize different issuance modules, so the primary issuance module contract for each product is listed in the table below too.
Start by identifying the product you want to redeem and matching it with the relevant issuance module; you'll need both addresses for subsequent steps.
For this example, we will redeem dsETH (0x341c05c0E9b33C0E38d64de76516b2Ce970bB3BE) using the Debt Issuance Module v2_1 (0x04b59F9F09750C044D7CfbC177561E409085f0f3) on Index Protocol V1.
Next, go to your product's token contract on Etherscan and navigate to the Contract > Read Contract tab. Select the balanceOf function and paste in the wallet address that holds your tokens. After hitting the Query button, save the uint256 value that it returns.
See the example for dsETH below, with a uint256 value of 47910320749244497.
Make sure to copy your uint256 value and/or leave the Etherscan tab open - you'll need it for the next step!
Next, you must allow the issuance module to "spend" your product tokens in exchange for the underlying components.
Go to the product token page on Etherscan and navigate to the Contract > Write Contract tab. Select the approve function and carefully paste in the corresponding values...
See the dsETH example below:
If you haven't already, connect the wallet that holds your product tokens to Etherscan. This will allow you to "write" to the contract and grant the issuance module permission to spend your tokens.
After double-checking your inputs and confirming your wallet is connected, click the Write button; this should trigger a transaction in the connected wallet. Carefully review the transaction before signing, and note that this approval transaction will cost gas.
Finally, you can redeem your product tokens for the underlying components by interacting directly with the issuance module contract.
Go to the relevant issuance module contract on Etherscan and navigate to the Contract > Write Contract tab. Connect the wallet that holds your product tokens, then select the redeem function. Carefully paste in the corresponding values collected during previous steps...
_to = the address that should receive the underlying components (i.e. your wallet)
See an example for dsETH below:
After double-checking your inputs and confirming your wallet is connected, click the Write button; this should trigger a transaction in the connected wallet. Carefully review the transaction before signing, and note that this approval transaction will cost more gas than the previous approval step.
Once you have executed this transaction, the product tokens will be burned and the underlying components will be sent to your wallet (or to a different _to address that you provided).
And that's it! You have successfully redeemed your product for the underlying components.
spender = the relevant issuance module contract address (from )
amount = the uint256 value representing your wallet balance (from )
A for dsETH can be seen below:
_setToken = the product's token contract address (from )
_quantity = the uint256 value that represents your wallet balance (from )
A for dsETH can be found below:
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