diff options
author | Francesco Agosti <francesco.agosti93@gmail.com> | 2018-10-17 09:18:41 +0800 |
---|---|---|
committer | GitHub <noreply@github.com> | 2018-10-17 09:18:41 +0800 |
commit | 336e456984e24807e3d0d5017de4ea8d1e9beb19 (patch) | |
tree | b81fcdfb7f1026b3007a9c5a81f39974d74ae483 /packages/instant/src/util | |
parent | 35b001b0818eda5a55e0c5f9fad9ec7122c28745 (diff) | |
parent | 32beeae2f0fa4538f12036aca8dd8d30b1de8bc9 (diff) | |
download | dexon-sol-tools-336e456984e24807e3d0d5017de4ea8d1e9beb19.tar dexon-sol-tools-336e456984e24807e3d0d5017de4ea8d1e9beb19.tar.gz dexon-sol-tools-336e456984e24807e3d0d5017de4ea8d1e9beb19.tar.bz2 dexon-sol-tools-336e456984e24807e3d0d5017de4ea8d1e9beb19.tar.lz dexon-sol-tools-336e456984e24807e3d0d5017de4ea8d1e9beb19.tar.xz dexon-sol-tools-336e456984e24807e3d0d5017de4ea8d1e9beb19.tar.zst dexon-sol-tools-336e456984e24807e3d0d5017de4ea8d1e9beb19.zip |
Merge pull request #1131 from 0xProject/feature/instant/move-features-over-from-zrx-buyer
[instant][types][order-utils][asset-buyer] Move over and clean up features from zrx-buyer
Diffstat (limited to 'packages/instant/src/util')
-rw-r--r-- | packages/instant/src/util/asset_buyer.ts | 9 | ||||
-rw-r--r-- | packages/instant/src/util/coinbase_api.ts | 10 | ||||
-rw-r--r-- | packages/instant/src/util/format.ts | 45 | ||||
-rw-r--r-- | packages/instant/src/util/provider.ts | 12 | ||||
-rw-r--r-- | packages/instant/src/util/util.ts | 5 | ||||
-rw-r--r-- | packages/instant/src/util/web3_wrapper.ts | 5 |
6 files changed, 86 insertions, 0 deletions
diff --git a/packages/instant/src/util/asset_buyer.ts b/packages/instant/src/util/asset_buyer.ts new file mode 100644 index 000000000..27d66d600 --- /dev/null +++ b/packages/instant/src/util/asset_buyer.ts @@ -0,0 +1,9 @@ +import { AssetBuyer } from '@0xproject/asset-buyer'; + +import { sraApiUrl } from '../constants'; + +import { getProvider } from './provider'; + +const provider = getProvider(); + +export const assetBuyer = AssetBuyer.getAssetBuyerForStandardRelayerAPIUrl(provider, sraApiUrl); diff --git a/packages/instant/src/util/coinbase_api.ts b/packages/instant/src/util/coinbase_api.ts new file mode 100644 index 000000000..94a5d3c80 --- /dev/null +++ b/packages/instant/src/util/coinbase_api.ts @@ -0,0 +1,10 @@ +import { BigNumber } from '@0xproject/utils'; + +const baseEndpoint = 'https://api.coinbase.com/v2'; +export const coinbaseApi = { + getEthUsdPrice: async (): Promise<BigNumber> => { + const res = await fetch(`${baseEndpoint}/prices/ETH-USD/buy`); + const resJson = await res.json(); + return new BigNumber(resJson.data.amount); + }, +}; diff --git a/packages/instant/src/util/format.ts b/packages/instant/src/util/format.ts new file mode 100644 index 000000000..b62c968fb --- /dev/null +++ b/packages/instant/src/util/format.ts @@ -0,0 +1,45 @@ +import { BigNumber } from '@0xproject/utils'; +import { Web3Wrapper } from '@0xproject/web3-wrapper'; +import * as _ from 'lodash'; + +import { ethDecimals } from '../constants'; + +export const format = { + ethBaseAmount: (ethBaseAmount?: BigNumber, decimalPlaces: number = 4, defaultText: string = '0 ETH'): string => { + if (_.isUndefined(ethBaseAmount)) { + return defaultText; + } + const ethUnitAmount = Web3Wrapper.toUnitAmount(ethBaseAmount, ethDecimals); + return format.ethUnitAmount(ethUnitAmount, decimalPlaces); + }, + ethUnitAmount: (ethUnitAmount?: BigNumber, decimalPlaces: number = 4, defaultText: string = '0 ETH'): string => { + if (_.isUndefined(ethUnitAmount)) { + return defaultText; + } + const roundedAmount = ethUnitAmount.round(decimalPlaces); + return `${roundedAmount} ETH`; + }, + ethBaseAmountInUsd: ( + ethBaseAmount?: BigNumber, + ethUsdPrice?: BigNumber, + decimalPlaces: number = 2, + defaultText: string = '$0.00', + ): string => { + if (_.isUndefined(ethBaseAmount) || _.isUndefined(ethUsdPrice)) { + return defaultText; + } + const ethUnitAmount = Web3Wrapper.toUnitAmount(ethBaseAmount, ethDecimals); + return format.ethUnitAmountInUsd(ethUnitAmount, ethUsdPrice, decimalPlaces); + }, + ethUnitAmountInUsd: ( + ethUnitAmount?: BigNumber, + ethUsdPrice?: BigNumber, + decimalPlaces: number = 2, + defaultText: string = '$0.00', + ): string => { + if (_.isUndefined(ethUnitAmount) || _.isUndefined(ethUsdPrice)) { + return defaultText; + } + return `$${ethUnitAmount.mul(ethUsdPrice).toFixed(decimalPlaces)}`; + }, +}; diff --git a/packages/instant/src/util/provider.ts b/packages/instant/src/util/provider.ts new file mode 100644 index 000000000..49705fd11 --- /dev/null +++ b/packages/instant/src/util/provider.ts @@ -0,0 +1,12 @@ +import { Provider } from 'ethereum-types'; + +export const getProvider = (): Provider => { + const injectedWeb3 = (window as any).web3 || undefined; + try { + // Use MetaMask/Mist provider + return injectedWeb3.currentProvider; + } catch (err) { + // Throws when user doesn't have MetaMask/Mist running + throw new Error(`No injected web3 found: ${err}`); + } +}; diff --git a/packages/instant/src/util/util.ts b/packages/instant/src/util/util.ts new file mode 100644 index 000000000..232a86850 --- /dev/null +++ b/packages/instant/src/util/util.ts @@ -0,0 +1,5 @@ +import * as _ from 'lodash'; + +export const util = { + boundNoop: _.noop.bind(_), +}; diff --git a/packages/instant/src/util/web3_wrapper.ts b/packages/instant/src/util/web3_wrapper.ts new file mode 100644 index 000000000..d7e43521f --- /dev/null +++ b/packages/instant/src/util/web3_wrapper.ts @@ -0,0 +1,5 @@ +import { Web3Wrapper } from '@0xproject/web3-wrapper'; + +import { getProvider } from './provider'; + +export const web3Wrapper = new Web3Wrapper(getProvider()); |