Ticket

Ticket

readGreyList

Read grey list

import { readGreyList } from "derivstudio/cds";
let queryTransaction = readGreyList(_tokenId);
let ret = sdk.query(queryTransaction);

** Request **

Params	Type	Description
_tokenId	uint256	ticket token id

** Response **

Params	Type	Description
isGreyToken	bool	is grey token

readrentExpires

Read the rent expiration date for a ticket

import { readrentExpires } from "derivstudio/cds";
let queryTransaction = readrentExpires(_tokenId,_user);
let ret = sdk.query(queryTransaction);

** Request **

** Params**	Type	Description
_tokenId	uint256	ticket token id
_user	address	rent user

** Response **

Params	Type	Description
timestamp	uint256	rent expired at

readMiner

Read the token address issued under a ticket

import { readMiner } from "derivstudio/cds";
let queryTransaction = readMiner();
let ret = sdk.query(queryTransaction);

** Response **

Params	Type	Description
miner	address	miner

readTotalSupply

Read the total token amount issued under a ticket

import { readTotalSupply } from "derivstudio/cds";
let queryTransaction = readTotalSupply();
let ret = sdk.query(queryTransaction);

** Response **

Params	Type	Description
totalSupply	uint256	ticket total supply

readTokenTotalSupply

The amount of specified tickets

import { readTokenTotalSupply } from "derivstudio/cds";
let queryTransaction = readTokenTotalSupply(token_id);
let ret = sdk.query(queryTransaction);

** Request **

Params	Type	Description
token_id	uint256	ticket id

** Response **

Params	Type	Description
totalSupply	uint256	a ticket amount

readTokenOwner

Read the ticket address of the owner

import { readTokenTotalSupply } from "derivstudio/cds";
let queryTransaction = readTokenOwner(token_id);
let ret = sdk.query(queryTransaction);

** Request **

Params	Type	Description
token_id	uint256	ticket id

** Response **

Params	Type	Description
owner	address	a ticket owner

readTokenFroze

Read whether the ticket is collateralized or not

import { readTokenFroze } from "derivstudio/cds";
let queryTransaction = readTokenFroze(token_id);
let ret = sdk.query(queryTransaction);

** Request **

Params	Type	Description
token_id	uint256	ticket id

** Response **

Params	Type	Description
isFroze	bool	ticket is frozen

Issue

Issue a CDS

import { issue } from "derivstudio/cds";
let transaction = issue(_tokenId,_leverage,_baseToken,_underlyingHash,_isStakeNFT,_maturityDate,_initialMargin,_minInvest);

Params	Type	Description
_tokenId	address	ticket id
_leverage	uint256	Leverage，*10，e.g., leverage 1.1 is 11
_baseToken	address	Tokens
_underlyingHash	bytes32	cds content
_isStakeNFT	uint256	Is the collateral nft
_maturityDate	uint256	cds maturity date(seconds)
_initialMargin	uint256	Initial lp amount
_minInvest	uint256	Minimum liquidity investment

SafeTransferFrom

Transfer a ticket

import { safeTransferFrom } from "derivstudio/ticket";
let transaction = safeTransferFrom(from,to, tokenId, amount, Buffer.from(''));

Params	Type	Description
from	address	ticket transfer from
to	address	ticket transfer to
ticket_id	uint256	ticket transfer id
amount	uint256	amount=from address balance，just ticket owner have right to transfer

TackBack

Take back the NFT ticket after the rental period expires

import { tackBack } from "derivstudio/ticket";
let transaction = tackBack(user,ticketId);

Params	Type	Description
user	address	rent address of user
ticket_id	uint256	ticket transfer id