diff options
| -rw-r--r-- | packages/asset-buyer/CHANGELOG.json | 8 | ||||
| -rw-r--r-- | packages/asset-buyer/package.json | 1 | ||||
| -rw-r--r-- | packages/asset-buyer/src/asset_buyer.ts | 46 | ||||
| -rw-r--r-- | packages/asset-buyer/src/types.ts | 13 | ||||
| -rw-r--r-- | packages/asset-buyer/src/utils/calculate_liquidity.ts | 34 | ||||
| -rw-r--r-- | packages/asset-buyer/test/asset_buyer_test.ts | 212 | ||||
| -rw-r--r-- | packages/asset-buyer/test/utils/mocks.ts | 68 | ||||
| -rw-r--r-- | packages/instant/src/index.umd.ts | 42 | ||||
| -rw-r--r-- | yarn.lock | 12 |
9 files changed, 432 insertions, 4 deletions
diff --git a/packages/asset-buyer/CHANGELOG.json b/packages/asset-buyer/CHANGELOG.json index 0b717a887..909236772 100644 --- a/packages/asset-buyer/CHANGELOG.json +++ b/packages/asset-buyer/CHANGELOG.json @@ -1,5 +1,13 @@ [ { + "version": "4.1.0", + "changes": [ + { + "note": "Adds new public method getOrdersAndFillableAmountsAsync, and exposes getOrdersAndFillableAmountsAsync as public method" + } + ] + }, + { "timestamp": 1547561734, "version": "4.0.1", "changes": [ diff --git a/packages/asset-buyer/package.json b/packages/asset-buyer/package.json index 3fca31664..45cd8954d 100644 --- a/packages/asset-buyer/package.json +++ b/packages/asset-buyer/package.json @@ -65,6 +65,7 @@ "shx": "^0.2.2", "tslint": "5.11.0", "typedoc": "0.13.0", + "typemoq": "^2.1.0", "typescript": "3.0.1" }, "publishConfig": { diff --git a/packages/asset-buyer/src/asset_buyer.ts b/packages/asset-buyer/src/asset_buyer.ts index 934410c55..cd60f0eff 100644 --- a/packages/asset-buyer/src/asset_buyer.ts +++ b/packages/asset-buyer/src/asset_buyer.ts @@ -16,14 +16,16 @@ import { BuyQuote, BuyQuoteExecutionOpts, BuyQuoteRequestOpts, + LiquidityForAssetData, + LiquidityRequestOpts, OrderProvider, - OrderProviderResponse, OrdersAndFillableAmounts, } from './types'; import { assert } from './utils/assert'; import { assetDataUtils } from './utils/asset_data_utils'; import { buyQuoteCalculator } from './utils/buy_quote_calculator'; +import { calculateLiquidity } from './utils/calculate_liquidity'; import { orderProviderResponseProcessor } from './utils/order_provider_response_processor'; interface OrdersEntry { @@ -138,10 +140,10 @@ export class AssetBuyer { // get the relevant orders for the makerAsset and fees // if the requested assetData is ZRX, don't get the fee info const [ordersAndFillableAmounts, feeOrdersAndFillableAmounts] = await Promise.all([ - this._getOrdersAndFillableAmountsAsync(assetData, shouldForceOrderRefresh), + this.getOrdersAndFillableAmountsAsync(assetData, shouldForceOrderRefresh), isMakerAssetZrxToken ? Promise.resolve(constants.EMPTY_ORDERS_AND_FILLABLE_AMOUNTS) - : this._getOrdersAndFillableAmountsAsync(zrxTokenAssetData, shouldForceOrderRefresh), + : this.getOrdersAndFillableAmountsAsync(zrxTokenAssetData, shouldForceOrderRefresh), shouldForceOrderRefresh, ]); if (ordersAndFillableAmounts.orders.length === 0) { @@ -178,6 +180,40 @@ export class AssetBuyer { return buyQuote; } /** + * Returns information about available liquidity for an asset + * Does not factor in slippage or fees + * @param assetData The assetData of the desired asset to buy (for more info: https://github.com/0xProject/0x-protocol-specification/blob/master/v2/v2-specification.md). + * @param options Options for the request. See type definition for more information. + * + * @return An object that conforms to LiquidityForAssetData that satisfies the request. See type definition for more information. + */ + public async getLiquidityForAssetDataAsync( + assetData: string, + options: Partial<LiquidityRequestOpts> = {}, + ): Promise<LiquidityForAssetData> { + const shouldForceOrderRefresh = + options.shouldForceOrderRefresh !== undefined ? options.shouldForceOrderRefresh : false; + assert.isString('assetData', assetData); + assert.isBoolean('shouldForceOrderRefresh', shouldForceOrderRefresh); + + const assetPairs = await this.orderProvider.getAvailableMakerAssetDatasAsync(assetData); + const etherTokenAssetData = this._getEtherTokenAssetDataOrThrow(); + if (!assetPairs.includes(etherTokenAssetData)) { + return { + tokensAvailableInBaseUnits: 0, + ethValueAvailableInWei: 0, + }; + } + + const ordersAndFillableAmounts = await this.getOrdersAndFillableAmountsAsync( + assetData, + shouldForceOrderRefresh, + ); + + return calculateLiquidity(ordersAndFillableAmounts); + } + + /** * Given a BuyQuote and desired rate, attempt to execute the buy. * @param buyQuote An object that conforms to BuyQuote. See type definition for more information. * @param options Options for the execution of the BuyQuote. See type definition for more information. @@ -260,8 +296,10 @@ export class AssetBuyer { } /** * Grab orders from the map, if there is a miss or it is time to refresh, fetch and process the orders + * @param assetData The assetData of the desired asset to buy (for more info: https://github.com/0xProject/0x-protocol-specification/blob/master/v2/v2-specification.md). + * @param shouldForceOrderRefresh If set to true, new orders and state will be fetched instead of waiting for the next orderRefreshIntervalMs. */ - private async _getOrdersAndFillableAmountsAsync( + public async getOrdersAndFillableAmountsAsync( assetData: string, shouldForceOrderRefresh: boolean, ): Promise<OrdersAndFillableAmounts> { diff --git a/packages/asset-buyer/src/types.ts b/packages/asset-buyer/src/types.ts index d5d6be695..da8b75c8f 100644 --- a/packages/asset-buyer/src/types.ts +++ b/packages/asset-buyer/src/types.ts @@ -75,6 +75,11 @@ export interface BuyQuoteRequestOpts { slippagePercentage: number; } +/* + * shouldForceOrderRefresh: If set to true, new orders and state will be fetched instead of waiting for the next orderRefreshIntervalMs. Defaults to false. + */ +export interface LiquidityRequestOpts extends Pick<BuyQuoteRequestOpts, 'shouldForceOrderRefresh'> {} + /** * 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. @@ -121,3 +126,11 @@ export interface OrdersAndFillableAmounts { orders: SignedOrder[]; remainingFillableMakerAssetAmounts: BigNumber[]; } + +/** + * Represents available liquidity for a given assetData + */ +export interface LiquidityForAssetData { + tokensAvailableInBaseUnits: number; + ethValueAvailableInWei: number; +} diff --git a/packages/asset-buyer/src/utils/calculate_liquidity.ts b/packages/asset-buyer/src/utils/calculate_liquidity.ts new file mode 100644 index 000000000..910c756ac --- /dev/null +++ b/packages/asset-buyer/src/utils/calculate_liquidity.ts @@ -0,0 +1,34 @@ +import { BigNumber } from '@0x/utils'; + +import { LiquidityForAssetData, OrdersAndFillableAmounts } from '../types'; + +import { orderUtils } from './order_utils'; + +export const calculateLiquidity = (ordersAndFillableAmounts: OrdersAndFillableAmounts): LiquidityForAssetData => { + const { orders, remainingFillableMakerAssetAmounts } = ordersAndFillableAmounts; + const liquidityInBigNumbers = orders.reduce( + (acc, order, curIndex) => { + const availableMakerAssetAmount = remainingFillableMakerAssetAmounts[curIndex]; + if (availableMakerAssetAmount === undefined) { + throw new Error(`No corresponding fillableMakerAssetAmounts at index ${curIndex}`); + } + + const tokensAvailableForCurrentOrder = availableMakerAssetAmount; + const ethValueAvailableForCurrentOrder = orderUtils.getTakerFillAmount(order, availableMakerAssetAmount); + return { + tokensAvailableInBaseUnits: acc.tokensAvailableInBaseUnits.plus(tokensAvailableForCurrentOrder), + ethValueAvailableInWei: acc.ethValueAvailableInWei.plus(ethValueAvailableForCurrentOrder), + }; + }, + { + tokensAvailableInBaseUnits: new BigNumber(0), + ethValueAvailableInWei: new BigNumber(0), + }, + ); + + // Turn into regular numbers + return { + tokensAvailableInBaseUnits: liquidityInBigNumbers.tokensAvailableInBaseUnits.toNumber(), + ethValueAvailableInWei: liquidityInBigNumbers.ethValueAvailableInWei.toNumber(), + }; +}; diff --git a/packages/asset-buyer/test/asset_buyer_test.ts b/packages/asset-buyer/test/asset_buyer_test.ts new file mode 100644 index 000000000..9ed51f5e5 --- /dev/null +++ b/packages/asset-buyer/test/asset_buyer_test.ts @@ -0,0 +1,212 @@ +import { orderFactory } from '@0x/order-utils/lib/src/order_factory'; +import { Web3ProviderEngine } from '@0x/subproviders'; +import { SignedOrder } from '@0x/types'; +import { BigNumber } from '@0x/utils'; +import { Web3Wrapper } from '@0x/web3-wrapper'; +import * as chai from 'chai'; +import 'mocha'; +import * as TypeMoq from 'typemoq'; + +import { AssetBuyer } from '../src'; +import { constants } from '../src/constants'; +import { LiquidityForAssetData, OrderProvider, OrdersAndFillableAmounts } from '../src/types'; + +import { chaiSetup } from './utils/chai_setup'; +import { + mockAvailableAssetDatas, + mockedAssetBuyerWithOrdersAndFillableAmounts, + orderProviderMock, +} from './utils/mocks'; + +chaiSetup.configure(); +const expect = chai.expect; + +const FAKE_SRA_URL = 'https://fakeurl.com'; +const FAKE_ASSET_DATA = '0xf47261b00000000000000000000000001dc4c1cefef38a777b15aa20260a54e584b16c48'; +const TOKEN_DECIMALS = 18; +const DAI_ASSET_DATA = '0xf47261b000000000000000000000000089d24a6b4ccb1b6faa2625fe562bdd9a23260359"'; +const WETH_ASSET_DATA = '0xf47261b0000000000000000000000000c02aaa39b223fe8d0a0e5c4f27ead9083c756cc2'; +const WETH_DECIMALS = constants.ETHER_TOKEN_DECIMALS; + +const baseUnitAmount = (unitAmount: number, decimals = TOKEN_DECIMALS): BigNumber => { + return Web3Wrapper.toBaseUnitAmount(new BigNumber(unitAmount), decimals); +}; + +const expectLiquidityResult = async ( + web3Provider: Web3ProviderEngine, + orderProvider: OrderProvider, + ordersAndFillableAmounts: OrdersAndFillableAmounts, + expectedLiquidityResult: LiquidityForAssetData, +) => { + const mockedAssetBuyer = mockedAssetBuyerWithOrdersAndFillableAmounts( + web3Provider, + orderProvider, + FAKE_ASSET_DATA, + ordersAndFillableAmounts, + ); + const liquidityResult = await mockedAssetBuyer.object.getLiquidityForAssetDataAsync(FAKE_ASSET_DATA); + expect(liquidityResult).to.deep.equal(expectedLiquidityResult); +}; + +// tslint:disable:custom-no-magic-numbers +describe('AssetBuyer', () => { + describe('getLiquidityForAssetDataAsync', () => { + const mockWeb3Provider = TypeMoq.Mock.ofType(Web3ProviderEngine); + const mockOrderProvider = orderProviderMock(); + + beforeEach(() => { + mockWeb3Provider.reset(); + mockOrderProvider.reset(); + }); + + afterEach(() => { + mockWeb3Provider.verifyAll(); + mockOrderProvider.verifyAll(); + }); + + describe('validation', () => { + it('should ensure assetData is a string', async () => { + const assetBuyer = AssetBuyer.getAssetBuyerForStandardRelayerAPIUrl( + mockWeb3Provider.object, + FAKE_SRA_URL, + ); + + expect(assetBuyer.getLiquidityForAssetDataAsync(false as any)).to.be.rejectedWith( + 'Expected assetData to be of type string, encountered: false', + ); + }); + }); + + describe('asset pair not supported', () => { + it('should return 0s when no asset pair not supported', async () => { + mockAvailableAssetDatas(mockOrderProvider, FAKE_ASSET_DATA, []); + + const assetBuyer = new AssetBuyer(mockWeb3Provider.object, mockOrderProvider.object); + const liquidityResult = await assetBuyer.getLiquidityForAssetDataAsync(FAKE_ASSET_DATA); + expect(liquidityResult).to.deep.equal({ + tokensAvailableInBaseUnits: 0, + ethValueAvailableInWei: 0, + }); + }); + it('should return 0s when only other asset pair supported', async () => { + mockAvailableAssetDatas(mockOrderProvider, FAKE_ASSET_DATA, [DAI_ASSET_DATA]); + + const assetBuyer = new AssetBuyer(mockWeb3Provider.object, mockOrderProvider.object); + const liquidityResult = await assetBuyer.getLiquidityForAssetDataAsync(FAKE_ASSET_DATA); + expect(liquidityResult).to.deep.equal({ + tokensAvailableInBaseUnits: 0, + ethValueAvailableInWei: 0, + }); + }); + }); + + describe('assetData is supported', () => { + // orders + const sellTwoTokensFor1Weth: SignedOrder = orderFactory.createSignedOrderFromPartial({ + makerAssetAmount: baseUnitAmount(2), + takerAssetAmount: baseUnitAmount(1, WETH_DECIMALS), + }); + const sellTenTokensFor10Weth: SignedOrder = orderFactory.createSignedOrderFromPartial({ + makerAssetAmount: baseUnitAmount(10), + takerAssetAmount: baseUnitAmount(10, WETH_DECIMALS), + }); + + beforeEach(() => { + mockAvailableAssetDatas(mockOrderProvider, FAKE_ASSET_DATA, [WETH_ASSET_DATA]); + }); + + it('should return 0s when no orders available', async () => { + const ordersAndFillableAmounts: OrdersAndFillableAmounts = { + orders: [], + remainingFillableMakerAssetAmounts: [], + }; + const expectedResult = { + tokensAvailableInBaseUnits: 0, + ethValueAvailableInWei: 0, + }; + await expectLiquidityResult( + mockWeb3Provider.object, + mockOrderProvider.object, + ordersAndFillableAmounts, + expectedResult, + ); + }); + + it('should return correct computed value when orders provided with full fillableAmounts', async () => { + const orders: SignedOrder[] = [sellTwoTokensFor1Weth, sellTenTokensFor10Weth]; + const ordersAndFillableAmounts = { + orders: [sellTwoTokensFor1Weth, sellTenTokensFor10Weth], + remainingFillableMakerAssetAmounts: orders.map(o => o.makerAssetAmount), + }; + + const expectedTokensAvailable = orders[0].makerAssetAmount.plus(orders[1].makerAssetAmount); + const expectedEthValueAvailable = orders[0].takerAssetAmount.plus(orders[1].takerAssetAmount); + const expectedResult = { + tokensAvailableInBaseUnits: expectedTokensAvailable.toNumber(), + ethValueAvailableInWei: expectedEthValueAvailable.toNumber(), + }; + + await expectLiquidityResult( + mockWeb3Provider.object, + mockOrderProvider.object, + ordersAndFillableAmounts, + expectedResult, + ); + }); + + it('should return correct computed value with one partial fillableAmounts', async () => { + const ordersAndFillableAmounts = { + orders: [sellTwoTokensFor1Weth], + remainingFillableMakerAssetAmounts: [baseUnitAmount(1)], + }; + const expectedResult = { + tokensAvailableInBaseUnits: baseUnitAmount(1).toNumber(), + ethValueAvailableInWei: baseUnitAmount(0.5, WETH_DECIMALS).toNumber(), + }; + + await expectLiquidityResult( + mockWeb3Provider.object, + mockOrderProvider.object, + ordersAndFillableAmounts, + expectedResult, + ); + }); + + it('should return correct computed value with multiple orders and fillable amounts', async () => { + const ordersAndFillableAmounts = { + orders: [sellTwoTokensFor1Weth, sellTenTokensFor10Weth], + remainingFillableMakerAssetAmounts: [baseUnitAmount(1), baseUnitAmount(3)], + }; + const expectedResult = { + tokensAvailableInBaseUnits: baseUnitAmount(4).toNumber(), + ethValueAvailableInWei: baseUnitAmount(3.5, WETH_DECIMALS).toNumber(), + }; + + await expectLiquidityResult( + mockWeb3Provider.object, + mockOrderProvider.object, + ordersAndFillableAmounts, + expectedResult, + ); + }); + + it('should return 0s when no amounts fillable', async () => { + const ordersAndFillableAmounts = { + orders: [sellTwoTokensFor1Weth, sellTenTokensFor10Weth], + remainingFillableMakerAssetAmounts: [baseUnitAmount(0), baseUnitAmount(0)], + }; + const expectedResult = { + tokensAvailableInBaseUnits: baseUnitAmount(0).toNumber(), + ethValueAvailableInWei: baseUnitAmount(0, WETH_DECIMALS).toNumber(), + }; + + await expectLiquidityResult( + mockWeb3Provider.object, + mockOrderProvider.object, + ordersAndFillableAmounts, + expectedResult, + ); + }); + }); + }); +}); diff --git a/packages/asset-buyer/test/utils/mocks.ts b/packages/asset-buyer/test/utils/mocks.ts new file mode 100644 index 000000000..d3e1c09c4 --- /dev/null +++ b/packages/asset-buyer/test/utils/mocks.ts @@ -0,0 +1,68 @@ +import { Web3ProviderEngine } from '@0x/subproviders'; +import * as TypeMoq from 'typemoq'; + +import { AssetBuyer } from '../../src/asset_buyer'; +import { OrderProvider, OrderProviderResponse, OrdersAndFillableAmounts } from '../../src/types'; + +// tslint:disable:promise-function-async + +// Implementing dummy class for using in mocks, see https://github.com/florinn/typemoq/issues/3 +class OrderProviderClass implements OrderProvider { + // tslint:disable-next-line:prefer-function-over-method + public async getOrdersAsync(): Promise<OrderProviderResponse> { + return Promise.resolve({ orders: [] }); + } + // tslint:disable-next-line:prefer-function-over-method + public async getAvailableMakerAssetDatasAsync(takerAssetData: string): Promise<string[]> { + return Promise.resolve([]); + } +} + +export const orderProviderMock = () => { + return TypeMoq.Mock.ofType(OrderProviderClass, TypeMoq.MockBehavior.Strict); +}; + +export const mockAvailableAssetDatas = ( + mockOrderProvider: TypeMoq.IMock<OrderProviderClass>, + assetData: string, + availableAssetDatas: string[], +) => { + mockOrderProvider + .setup(op => op.getAvailableMakerAssetDatasAsync(TypeMoq.It.isValue(assetData))) + .returns(() => { + return Promise.resolve(availableAssetDatas); + }) + .verifiable(TypeMoq.Times.once()); +}; + +const partiallyMockedAssetBuyer = ( + provider: Web3ProviderEngine, + orderProvider: OrderProvider, +): TypeMoq.IMock<AssetBuyer> => { + const rawAssetBuyer = new AssetBuyer(provider, orderProvider); + const mockedAssetBuyer = TypeMoq.Mock.ofInstance(rawAssetBuyer, TypeMoq.MockBehavior.Loose, false); + mockedAssetBuyer.callBase = true; + return mockedAssetBuyer; +}; + +const mockGetOrdersAndAvailableAmounts = ( + mockedAssetBuyer: TypeMoq.IMock<AssetBuyer>, + assetData: string, + ordersAndFillableAmounts: OrdersAndFillableAmounts, +): void => { + mockedAssetBuyer + .setup(a => a.getOrdersAndFillableAmountsAsync(assetData, false)) + .returns(() => Promise.resolve(ordersAndFillableAmounts)) + .verifiable(TypeMoq.Times.once()); +}; + +export const mockedAssetBuyerWithOrdersAndFillableAmounts = ( + provider: Web3ProviderEngine, + orderProvider: OrderProvider, + assetData: string, + ordersAndFillableAmounts: OrdersAndFillableAmounts, +): TypeMoq.IMock<AssetBuyer> => { + const mockedAssetBuyer = partiallyMockedAssetBuyer(provider, orderProvider); + mockGetOrdersAndAvailableAmounts(mockedAssetBuyer, assetData, ordersAndFillableAmounts); + return mockedAssetBuyer; +}; diff --git a/packages/instant/src/index.umd.ts b/packages/instant/src/index.umd.ts index d172f4145..5c0ab8eae 100644 --- a/packages/instant/src/index.umd.ts +++ b/packages/instant/src/index.umd.ts @@ -1,3 +1,6 @@ +import { AssetBuyer } from '@0x/asset-buyer'; +import { assetDataUtils } from '@0x/order-utils'; +import { Provider } from 'ethereum-types'; import * as _ from 'lodash'; import * as React from 'react'; import * as ReactDOM from 'react-dom'; @@ -9,9 +12,12 @@ import { INJECTED_DIV_ID, NPM_PACKAGE_VERSION, } from './constants'; +import { assetMetaDataMap } from './data/asset_meta_data_map'; import { ZeroExInstantOverlay, ZeroExInstantOverlayProps } from './index'; +import { Network, OrderSource } from './types'; import { analytics } from './util/analytics'; import { assert } from './util/assert'; +import { providerFactory } from './util/provider_factory'; import { util } from './util/util'; const isInstantRendered = (): boolean => !!document.getElementById(INJECTED_DIV_ID); @@ -122,6 +128,42 @@ export const render = (config: ZeroExInstantConfig, selector: string = DEFAULT_Z window.onpopstate = onPopStateHandler; }; +export const assetDataForERC20TokenAddress = (tokenAddress: string): string => { + assert.isETHAddressHex('tokenAddress', tokenAddress); + return assetDataUtils.encodeERC20AssetData(tokenAddress); +}; + +export const hasMetaDataForAssetData = (assetData: string): boolean => { + assert.isHexString('assetData', assetData); + return assetMetaDataMap[assetData] !== undefined; +}; + +export const getLiquidityForAssetDataAsync = async ( + assetData: string, + orderSource: OrderSource, + networkId: Network = Network.Mainnet, + provider?: Provider, +) => { + assert.isHexString('assetData', assetData); + assert.isValidOrderSource('orderSource', orderSource); + assert.isNumber('networkId', networkId); + + if (provider !== undefined) { + assert.isWeb3Provider('provider', provider); + } + + const bestProvider: Provider = provider || providerFactory.getFallbackNoSigningProvider(networkId); + + const assetBuyerOptions = { networkId }; + + const assetBuyer = + typeof orderSource === 'string' + ? AssetBuyer.getAssetBuyerForStandardRelayerAPIUrl(bestProvider, orderSource, assetBuyerOptions) + : AssetBuyer.getAssetBuyerForProvidedOrders(bestProvider, orderSource, assetBuyerOptions); + + return assetBuyer.getLiquidityForAssetDataAsync(assetData); +}; + // Write version info to the exported object for debugging export const GIT_SHA = GIT_SHA_FROM_CONSTANT; export const NPM_VERSION = NPM_PACKAGE_VERSION; @@ -12928,6 +12928,10 @@ postgres-interval@^1.1.0: dependencies: xtend "^4.0.0" +postinstall-build@^5.0.1: + version "5.0.3" + resolved "https://registry.yarnpkg.com/postinstall-build/-/postinstall-build-5.0.3.tgz#238692f712a481d8f5bc8960e94786036241efc7" + prebuild-install@^2.2.2: version "2.5.3" resolved "https://registry.yarnpkg.com/prebuild-install/-/prebuild-install-2.5.3.tgz#9f65f242782d370296353710e9bc843490c19f69" @@ -16689,6 +16693,14 @@ typedoc@0.13.0: typedoc-default-themes "^0.5.0" typescript "3.1.x" +typemoq@^2.1.0: + version "2.1.0" + resolved "https://registry.yarnpkg.com/typemoq/-/typemoq-2.1.0.tgz#4452ce360d92cf2a1a180f0c29de2803f87af1e8" + dependencies: + circular-json "^0.3.1" + lodash "^4.17.4" + postinstall-build "^5.0.1" + typeorm@^0.2.7: version "0.2.11" resolved "https://registry.yarnpkg.com/typeorm/-/typeorm-0.2.11.tgz#d81a295ed822e05043f2920cd539f52a963896b0" |