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import { SignedOrder } from '@0xproject/types';
import { BigNumber } from '@0xproject/utils';
/**
* makerAssetData: The assetData representing the desired makerAsset.
* takerAssetData: The assetData representing the desired takerAsset.
* networkId: The networkId that the desired orders should be for.
*/
export interface OrderProviderRequest {
makerAssetData: string;
takerAssetData: string;
networkId: number;
}
/**
* orders: An array of orders with optional remaining fillable makerAsset amounts. See type for more info.
*/
export interface OrderProviderResponse {
orders: SignedOrderWithRemainingFillableMakerAssetAmount[];
}
/**
* A normal SignedOrder with one extra optional property `remainingFillableMakerAssetAmount`
* remainingFillableMakerAssetAmount: The amount of the makerAsset that is available to be filled
*/
export interface SignedOrderWithRemainingFillableMakerAssetAmount extends SignedOrder {
remainingFillableMakerAssetAmount?: BigNumber;
}
/**
* Given an OrderProviderRequest, get an OrderProviderResponse.
*/
export interface OrderProvider {
getOrdersAsync: (orderProviderRequest: OrderProviderRequest) => Promise<OrderProviderResponse>;
}
/**
* assetData: String that represents a specific asset (for more info: https://github.com/0xProject/0x-protocol-specification/blob/master/v2/v2-specification.md).
* orders: An array of objects conforming to SignedOrder. These orders can be used to cover the requested assetBuyAmount plus slippage.
* feeOrders: An array of objects conforming to SignedOrder. These orders can be used to cover the fees for the orders param above.
* minRate: Min rate that needs to be paid in order to execute the buy.
* maxRate: Max rate that can be paid in order to execute the buy.
* assetBuyAmount: The amount of asset to buy.
* feePercentage: Optional affiliate fee percentage used to calculate the eth amounts above.
*/
export interface BuyQuote {
assetData: string;
orders: SignedOrder[];
feeOrders: SignedOrder[];
minRate: BigNumber;
maxRate: BigNumber;
assetBuyAmount: BigNumber;
feePercentage?: number;
}
/**
* feePercentage: The affiliate fee percentage. Defaults to 0.
* shouldForceOrderRefresh: If set to true, new orders and state will be fetched instead of waiting for the next orderRefreshIntervalMs. Defaults to false.
* slippagePercentage: The percentage buffer to add to account for slippage. Affects max ETH price estimates. Defaults to 0.2 (20%).
*/
export interface BuyQuoteRequestOpts {
feePercentage: number;
shouldForceOrderRefresh: boolean;
slippagePercentage: number;
}
/**
* rate: The desired rate to execute the buy at. Affects the amount of ETH sent with the transaction, defaults to buyQuote.maxRate.
* takerAddress: The address to perform the buy. Defaults to the first available address from the provider.
* feeRecipient: The address where affiliate fees are sent. Defaults to null address (0x000...000).
*/
export interface BuyQuoteExecutionOpts {
rate?: BigNumber;
takerAddress?: string;
feeRecipient: string;
}
/**
* networkId: The ethereum network id. Defaults to 1 (mainnet).
* orderRefreshIntervalMs: The interval in ms that getBuyQuoteAsync should trigger an refresh of orders and order states. Defaults to 10000ms (10s).
* expiryBufferSeconds: The number of seconds to add when calculating whether an order is expired or not. Defaults to 15s.
*/
export interface AssetBuyerOpts {
networkId: number;
orderRefreshIntervalMs: number;
expiryBufferSeconds: number;
}
/**
* Possible errors thrown by an AssetBuyer instance or associated static methods.
*/
export enum AssetBuyerError {
NoEtherTokenContractFound = 'NO_ETHER_TOKEN_CONTRACT_FOUND',
NoZrxTokenContractFound = 'NO_ZRX_TOKEN_CONTRACT_FOUND',
StandardRelayerApiError = 'STANDARD_RELAYER_API_ERROR',
InsufficientAssetLiquidity = 'INSUFFICIENT_ASSET_LIQUIDITY',
InsufficientZrxLiquidity = 'INSUFFICIENT_ZRX_LIQUIDITY',
NoAddressAvailable = 'NO_ADDRESS_AVAILABLE',
InvalidOrderProviderResponse = 'INVALID_ORDER_PROVIDER_RESPONSE',
}
/**
* Possible errors thrown by an AssetBuyerManager instance or associated static methods.
*/
export enum AssetBuyerManagerError {
AssetBuyerNotFound = 'ASSET_BUYER_NOT_FOUND',
}
export interface OrdersAndFillableAmounts {
orders: SignedOrder[];
remainingFillableMakerAssetAmounts: BigNumber[];
}
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