From 7ae38906926dc09bc10670c361af0d2bf0050426 Mon Sep 17 00:00:00 2001
From: Hsuan Lee <hsuan@cobinhood.com>
Date: Sat, 19 Jan 2019 18:42:04 +0800
Subject: Update dependency packages

---
 packages/instant/src/util/gas_price_estimator.ts | 65 ------------------------
 1 file changed, 65 deletions(-)
 delete mode 100644 packages/instant/src/util/gas_price_estimator.ts

(limited to 'packages/instant/src/util/gas_price_estimator.ts')

diff --git a/packages/instant/src/util/gas_price_estimator.ts b/packages/instant/src/util/gas_price_estimator.ts
deleted file mode 100644
index 9792b60ba..000000000
--- a/packages/instant/src/util/gas_price_estimator.ts
+++ /dev/null
@@ -1,65 +0,0 @@
-import { BigNumber, fetchAsync } from '@0x/utils';
-
-import {
-    DEFAULT_ESTIMATED_TRANSACTION_TIME_MS,
-    DEFAULT_GAS_PRICE,
-    ETH_GAS_STATION_API_BASE_URL,
-    GWEI_IN_WEI,
-} from '../constants';
-
-import { errorReporter } from './error_reporter';
-
-interface EthGasStationResult {
-    average: number;
-    fastestWait: number;
-    fastWait: number;
-    fast: number;
-    safeLowWait: number;
-    blockNum: number;
-    avgWait: number;
-    block_time: number;
-    speed: number;
-    fastest: number;
-    safeLow: number;
-}
-
-interface GasInfo {
-    gasPriceInWei: BigNumber;
-    estimatedTimeMs: number;
-}
-
-const fetchFastAmountInWeiAsync = async (): Promise<GasInfo> => {
-    const res = await fetchAsync(`${ETH_GAS_STATION_API_BASE_URL}/json/ethgasAPI.json`);
-    const gasInfo = (await res.json()) as EthGasStationResult;
-    // Eth Gas Station result is gwei * 10
-    const gasPriceInGwei = new BigNumber(gasInfo.fast / 10);
-    // Time is in minutes
-    const estimatedTimeMs = gasInfo.fastWait * 60 * 1000; // Minutes to MS
-    return { gasPriceInWei: gasPriceInGwei.multipliedBy(GWEI_IN_WEI), estimatedTimeMs };
-};
-
-export class GasPriceEstimator {
-    private _lastFetched?: GasInfo;
-    public async getGasInfoAsync(): Promise<GasInfo> {
-        let fetchedAmount: GasInfo | undefined;
-        try {
-            fetchedAmount = await fetchFastAmountInWeiAsync();
-        } catch (e) {
-            fetchedAmount = undefined;
-            errorReporter.report(e);
-        }
-
-        if (fetchedAmount) {
-            this._lastFetched = fetchedAmount;
-        }
-
-        return (
-            fetchedAmount ||
-            this._lastFetched || {
-                gasPriceInWei: DEFAULT_GAS_PRICE,
-                estimatedTimeMs: DEFAULT_ESTIMATED_TRANSACTION_TIME_MS,
-            }
-        );
-    }
-}
-export const gasPriceEstimator = new GasPriceEstimator();
-- 
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