Parameter Explanation

The following parameters play an essential role throughout the entire business process. It is necessary to provide a detailed explanation of them.

After creating an order, each record in the Loan/OTC market contains the f_order_info field, which holds the information from when the order was created.

Operations (Not Limited To):

• Creating/makring an OTC Listing

• Cancelling an OTC Listing

• Taking an OTC Listing

• Creating a Loan Listing

• Cancelling a Loan Listing

• Lending Assets

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Key Parameters

Maker

• The creator of the listing.

Taker

• The designated buyer or lender.

• If the order is open to everyone, use the empty address (0x0000000000000000000000000000000000000000).

• To specify a buyer or lender, provide their correct address.

Assets

• The assets being sold or pledged (only supports ERC20/ERC721).

• The seller/pledger must grant permission for the assets before listing.

• If the asset is ERC20, convert its precision using toWei(amount, "decimal").

Field	Description
collection	Contract address of the asset.
assetClass	Type of contract:
	0x0000000000000000000000000000000000000020 // Represents ERC20
	0x0000000000000000000000000000000000000721 // Represents ERC721
amountOrID	Differentiates ERC20/721. ERC20 assets are the quantity after toWei, while ERC721 assets are the NFT ID.
name	Asset name.
symbol	Asset symbol.
decimal	Asset precision.

Note: The asset type only supports ERC20 and ERC721. Each ERC721 asset ID occupies one sequence. See examples below.

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Currency

• The assets being purchased or borrowed (only supports Native/ERC20).

• The buyer/borrower must grant permission for the currency asset before proceeding.

• Convert precision using toWei(amount, "decimal").

Field	Description
collection	Contract address of the asset.
	For network native tokens: 0x0000000000000000000000000000000000000001.
assetClass	Type of contract:
	0x0000000000000000000000000000000000000000 // Represents network native token
	0x0000000000000000000000000000000000000020 // Represents ERC20
amountOrID	Quantity after toWei.
name	Asset name.
symbol	Asset symbol.
decimal	Asset precision.

Currency Example:

javascriptCopy codeconst currency = [
    {
        collection: "0x0000000000000000000000000000000000000001",
        assetClass: "0x0000000000000000000000000000000000000000",
        amountOrID: toWei(1, 18),
        name: "MATIC",
        symbol: "MATIC",
        decimal: 18
    }
];

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Deadline

• The fundraising end time (in seconds).

• Example:

  javascriptCopy code1 day = parseInt(Date.now() / 1000) + 86400;
  1 week = parseInt(Date.now() / 1000) + 86400 * 7;

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Duration

• The loan duration after successful fundraising (in seconds).

• Example:

  javascriptCopy code1 day = 86400;
  1 week = 7 * 86400;

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Interest Per Second

• The interest generated per second (calculated based on the APR input by the user).

• When displaying on the UI, convert interestPerSecond back into APR for user clarity.

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Nonce

• The nonce must be queried from the contract.

• When no interaction has occurred with the contract, the nonce will always be 0. (Do not assume that a nonce of zero means you can skip this step).