Auction Params Endpoint (#442)

* move auction endpoint changes to fresh branch

* final cleanup and add testing for util functions

* fix tests

* fix quote amount conversion

src/utils/constants.ts

@@ -1,3 +1,5 @@
+import { AuctionParamArgs } from "./types";
+
 export const MEASURED_ENDPOINTS = [
 	'/priorityFees',
 	'/batchPriorityFees',
@@ -7,3 +9,17 @@ export const MEASURED_ENDPOINTS = [
 	'/batchL2Cache',
 	'/l3',
 ];
+
+export const DEFAULT_MARKET_AUCTION_DURATION = 20;
+export const DEFAULT_LIMIT_AUCTION_DURATION = 60;
+const DEFAULT_AUCTION_END_PRICE_OFFSET = 0.1;
+const DEFAULT_AUCTION_END_PRICE_FROM = 'worst';
+
+export const DEFAULT_AUCTION_PARAMS: Partial<AuctionParamArgs> = {
+	isOracleOrder: true,
+	auctionDuration: DEFAULT_MARKET_AUCTION_DURATION,
+	auctionStartPriceOffset: 'marketBased',
+	auctionEndPriceOffset: DEFAULT_AUCTION_END_PRICE_OFFSET,
+	auctionStartPriceOffsetFrom: 'marketBased',
+	auctionEndPriceOffsetFrom: DEFAULT_AUCTION_END_PRICE_FROM,
+};