diff options
Diffstat (limited to 'packages/asset-buyer')
-rw-r--r-- | packages/asset-buyer/CHANGELOG.json | 8 | ||||
-rw-r--r-- | packages/asset-buyer/src/asset_buyer.ts | 6 | ||||
-rw-r--r-- | packages/asset-buyer/src/constants.ts | 2 | ||||
-rw-r--r-- | packages/asset-buyer/src/types.ts | 6 | ||||
-rw-r--r-- | packages/asset-buyer/src/utils/buy_quote_calculator.ts | 10 | ||||
-rw-r--r-- | packages/asset-buyer/src/utils/order_utils.ts | 2 | ||||
-rw-r--r-- | packages/asset-buyer/test/buy_quote_calculator_test.ts | 24 |
7 files changed, 40 insertions, 18 deletions
diff --git a/packages/asset-buyer/CHANGELOG.json b/packages/asset-buyer/CHANGELOG.json index d50a564dc..dbb801b69 100644 --- a/packages/asset-buyer/CHANGELOG.json +++ b/packages/asset-buyer/CHANGELOG.json @@ -1,5 +1,13 @@ [ { + "version": "2.1.0", + "changes": [ + { + "note": "Add `gasLimit` and `gasPrice` as optional properties on `BuyQuoteExecutionOpts`" + } + ] + }, + { "version": "2.0.0", "changes": [ { diff --git a/packages/asset-buyer/src/asset_buyer.ts b/packages/asset-buyer/src/asset_buyer.ts index 7ec39e012..50343efde 100644 --- a/packages/asset-buyer/src/asset_buyer.ts +++ b/packages/asset-buyer/src/asset_buyer.ts @@ -183,7 +183,7 @@ export class AssetBuyer { buyQuote: BuyQuote, options: Partial<BuyQuoteExecutionOpts> = {}, ): Promise<string> { - const { ethAmount, takerAddress, feeRecipient } = { + const { ethAmount, takerAddress, feeRecipient, gasLimit, gasPrice } = { ...constants.DEFAULT_BUY_QUOTE_EXECUTION_OPTS, ...options, }; @@ -219,6 +219,10 @@ export class AssetBuyer { feeOrders, feePercentage, feeRecipient, + { + gasLimit, + gasPrice, + }, ); return txHash; } diff --git a/packages/asset-buyer/src/constants.ts b/packages/asset-buyer/src/constants.ts index e1056e39b..e095dee06 100644 --- a/packages/asset-buyer/src/constants.ts +++ b/packages/asset-buyer/src/constants.ts @@ -8,7 +8,7 @@ const MAINNET_NETWORK_ID = 1; const DEFAULT_ASSET_BUYER_OPTS: AssetBuyerOpts = { networkId: MAINNET_NETWORK_ID, orderRefreshIntervalMs: 10000, // 10 seconds - expiryBufferSeconds: 15, + expiryBufferSeconds: 300, // 5 minutes }; const DEFAULT_BUY_QUOTE_REQUEST_OPTS: BuyQuoteRequestOpts = { diff --git a/packages/asset-buyer/src/types.ts b/packages/asset-buyer/src/types.ts index b96795bb6..6218f4ba4 100644 --- a/packages/asset-buyer/src/types.ts +++ b/packages/asset-buyer/src/types.ts @@ -77,18 +77,22 @@ export interface BuyQuoteRequestOpts { /** * ethAmount: The desired amount of eth to spend. Defaults to buyQuote.worstCaseQuoteInfo.totalEthAmount. * takerAddress: The address to perform the buy. Defaults to the first available address from the provider. + * gasLimit: The amount of gas to send with a transaction (in Gwei). Defaults to an eth_estimateGas rpc call. + * gasPrice: Gas price in Wei to use for a transaction * feeRecipient: The address where affiliate fees are sent. Defaults to null address (0x000...000). */ export interface BuyQuoteExecutionOpts { ethAmount?: BigNumber; takerAddress?: string; + gasLimit?: number; + gasPrice?: BigNumber; 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. + * expiryBufferSeconds: The number of seconds to add when calculating whether an order is expired or not. Defaults to 300s (5m). */ export interface AssetBuyerOpts { networkId: number; diff --git a/packages/asset-buyer/src/utils/buy_quote_calculator.ts b/packages/asset-buyer/src/utils/buy_quote_calculator.ts index cb0fd128c..a1d334eef 100644 --- a/packages/asset-buyer/src/utils/buy_quote_calculator.ts +++ b/packages/asset-buyer/src/utils/buy_quote_calculator.ts @@ -72,7 +72,6 @@ export const buyQuoteCalculator = { assetBuyAmount, feePercentage, ); - return { assetData, orders: resultOrders, @@ -98,13 +97,14 @@ function calculateQuoteInfo( ); // find the total eth needed to buy fees const ethAmountToBuyFees = findEthAmountNeededToBuyFees(feeOrdersAndFillableAmounts, zrxAmountToBuyAsset); - const ethAmountBeforeAffiliateFee = ethAmountToBuyAsset.plus(ethAmountToBuyFees); - const totalEthAmount = ethAmountBeforeAffiliateFee.mul(feePercentage + 1); + const affiliateFeeEthAmount = ethAmountToBuyAsset.mul(feePercentage); + const totalEthAmountWithoutAffiliateFee = ethAmountToBuyAsset.plus(ethAmountToBuyFees); + const totalEthAmount = totalEthAmountWithoutAffiliateFee.plus(affiliateFeeEthAmount); // divide into the assetBuyAmount in order to find rate of makerAsset / WETH - const ethPerAssetPrice = ethAmountBeforeAffiliateFee.div(assetBuyAmount); + const ethPerAssetPrice = totalEthAmountWithoutAffiliateFee.div(assetBuyAmount); return { totalEthAmount, - feeEthAmount: totalEthAmount.minus(ethAmountBeforeAffiliateFee), + feeEthAmount: affiliateFeeEthAmount, ethPerAssetPrice, }; } diff --git a/packages/asset-buyer/src/utils/order_utils.ts b/packages/asset-buyer/src/utils/order_utils.ts index 62166eb76..cfc13a8a1 100644 --- a/packages/asset-buyer/src/utils/order_utils.ts +++ b/packages/asset-buyer/src/utils/order_utils.ts @@ -10,7 +10,7 @@ export const orderUtils = { willOrderExpire(order: SignedOrder, secondsFromNow: number): boolean { const millisecondsInSecond = 1000; const currentUnixTimestampSec = new BigNumber(Date.now() / millisecondsInSecond).round(); - return order.expirationTimeSeconds.lessThan(currentUnixTimestampSec.minus(secondsFromNow)); + return order.expirationTimeSeconds.lessThan(currentUnixTimestampSec.plus(secondsFromNow)); }, calculateRemainingMakerAssetAmount(order: SignedOrder, remainingTakerAssetAmount: BigNumber): BigNumber { if (remainingTakerAssetAmount.eq(0)) { diff --git a/packages/asset-buyer/test/buy_quote_calculator_test.ts b/packages/asset-buyer/test/buy_quote_calculator_test.ts index b987b45a8..fda6958cd 100644 --- a/packages/asset-buyer/test/buy_quote_calculator_test.ts +++ b/packages/asset-buyer/test/buy_quote_calculator_test.ts @@ -103,9 +103,11 @@ describe('buyQuoteCalculator', () => { expect(buyQuote.feeOrders).to.deep.equal([smallFeeOrderAndFillableAmount.orders[0]]); // test if rates are correct // 50 eth to fill the first order + 100 eth for fees - const expectedFillEthAmount = new BigNumber(150); - const expectedTotalEthAmount = expectedFillEthAmount.mul(feePercentage + 1); - const expectedFeeEthAmount = expectedTotalEthAmount.minus(expectedFillEthAmount); + const expectedEthAmountForAsset = new BigNumber(50); + const expectedEthAmountForZrxFees = new BigNumber(100); + const expectedFillEthAmount = expectedEthAmountForAsset.plus(expectedEthAmountForZrxFees); + const expectedFeeEthAmount = expectedEthAmountForAsset.mul(feePercentage); + const expectedTotalEthAmount = expectedFillEthAmount.plus(expectedFeeEthAmount); const expectedEthPerAssetPrice = expectedFillEthAmount.div(assetBuyAmount); expect(buyQuote.bestCaseQuoteInfo.feeEthAmount).to.bignumber.equal(expectedFeeEthAmount); expect(buyQuote.bestCaseQuoteInfo.totalEthAmount).to.bignumber.equal(expectedTotalEthAmount); @@ -138,17 +140,21 @@ describe('buyQuoteCalculator', () => { expect(buyQuote.feeOrders).to.deep.equal(allFeeOrdersAndFillableAmounts.orders); // test if rates are correct // 50 eth to fill the first order + 100 eth for fees - const expectedFillEthAmount = new BigNumber(150); - const expectedTotalEthAmount = expectedFillEthAmount.mul(feePercentage + 1); - const expectedFeeEthAmount = expectedTotalEthAmount.minus(expectedFillEthAmount); + const expectedEthAmountForAsset = new BigNumber(50); + const expectedEthAmountForZrxFees = new BigNumber(100); + const expectedFillEthAmount = expectedEthAmountForAsset.plus(expectedEthAmountForZrxFees); + const expectedFeeEthAmount = expectedEthAmountForAsset.mul(feePercentage); + const expectedTotalEthAmount = expectedFillEthAmount.plus(expectedFeeEthAmount); const expectedEthPerAssetPrice = expectedFillEthAmount.div(assetBuyAmount); expect(buyQuote.bestCaseQuoteInfo.feeEthAmount).to.bignumber.equal(expectedFeeEthAmount); expect(buyQuote.bestCaseQuoteInfo.totalEthAmount).to.bignumber.equal(expectedTotalEthAmount); expect(buyQuote.bestCaseQuoteInfo.ethPerAssetPrice).to.bignumber.equal(expectedEthPerAssetPrice); // 100 eth to fill the first order + 200 eth for fees - const expectedWorstFillEthAmount = new BigNumber(300); - const expectedWorstTotalEthAmount = expectedWorstFillEthAmount.mul(feePercentage + 1); - const expectedWorstFeeEthAmount = expectedWorstTotalEthAmount.minus(expectedWorstFillEthAmount); + const expectedWorstEthAmountForAsset = new BigNumber(100); + const expectedWorstEthAmountForZrxFees = new BigNumber(200); + const expectedWorstFillEthAmount = expectedWorstEthAmountForAsset.plus(expectedWorstEthAmountForZrxFees); + const expectedWorstFeeEthAmount = expectedWorstEthAmountForAsset.mul(feePercentage); + const expectedWorstTotalEthAmount = expectedWorstFillEthAmount.plus(expectedWorstFeeEthAmount); const expectedWorstEthPerAssetPrice = expectedWorstFillEthAmount.div(assetBuyAmount); expect(buyQuote.worstCaseQuoteInfo.feeEthAmount).to.bignumber.equal(expectedWorstFeeEthAmount); expect(buyQuote.worstCaseQuoteInfo.totalEthAmount).to.bignumber.equal(expectedWorstTotalEthAmount); |