> For the complete documentation index, see [llms.txt](https://docs.vera.financial/developers/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.vera.financial/developers/getting-started/deploying-our-poc.md).

# Deploying Our PoC

### Follow the steps below to test our proof of concept that's deployed [here](http://sandbox.vera.financial/#/contracts)

1. Upload contract metadata and wasm (.contract files) for erc20, erc721 and AssetManager<br>
2. Instantiate erc20 and erc721 contracts first using Alice as owner. erc20 initial supply is set to 1 billion units and both contracts get 10 units endowment.<br>
3. Instantiate assetmanager contract using Alice as owner. Erc20 and Erc721 addresses will be set to the above deployed contracts; interest rate is set to 10 (% per year); transfer rate is set to 1 million (erc20 per erc721 token) and enabled is set to true.<br>
4. Alice, being owner of erc20 and erc721, grants approval to assetmanager calling `approve` and `setApprovalForAll` of erc20 and er721 respectively.<br>
5. Now Bob (or any else with balance) can mint an erc721 token, grant approval to assetmanager contract to spend this token, and `deposit` it in the assetmanager contract in exchange for 1 million erc20 tokens. These tokens are deducted from erc20 owner account (in this case Alice).<br>
6. There are some utility methods that can be called by anyone to check Bob's outstanding balance and interest payable etc.<br>
7. To repay, Bob needs to grant approval to assetmanager to spend his erc20 tokens. After that, he can call `withdraw` method providing the token\_id he is withdrawing. The assetmanager contract will deduct principal balance (1 million)+ interest from Bob's erc20 balance, deposit it in erc20 owner (Alice) and transfer erc721 token from Alice to Bob.