Squashed commit of the following:

commit 4b75f5e2edd501742f401055fae6a8476510f9b2 Author: Verisana <account@0112.pro> Date: Thu Jun 16 14:12:27 2022 +0300 2.0.12 commit ba63c55a036b453ad7d364dcc049fcbdeddd615e Merge: 44fd6c8 0e6b052 Author: Verisana <account@0112.pro> Date: Thu Jun 16 14:11:54 2022 +0300 Merge branch 'master' into feature/back-585 commit 44fd6c865cfd569594dc2a7e0c797cb8bb804474 Author: Verisana <account@0112.pro> Date: Thu Jun 2 19:40:33 2022 +0100 2.0.11 commit 3693df0b9504e3298d79b9d110c49a0b9b4b8bd1 Merge: f9bd877 f5d7319 Author: Verisana <account@0112.pro> Date: Thu Jun 2 19:38:43 2022 +0100 Merge branch 'master' into feature/back-585 commit f9bd87751433899a88a978020b509183ad56c954 Author: Verisana <account@0112.pro> Date: Wed Jun 1 22:05:08 2022 +0100 2.0.10 commit 7dd9ba07b42ee658ca40aada3262a3eec4985d6d Author: Verisana <account@0112.pro> Date: Tue May 31 16:28:03 2022 +0100 feat: pass userAddress while building transaction in limit-orders commit bcad272a88faca40627485d60443b492b37cbc8c Author: Verisana <account@0112.pro> Date: Tue May 31 15:15:23 2022 +0100 feat: make multi and mega swap work commit 2113d7799c4cf4049009802e13e630a2769015c6 Author: Verisana <account@0112.pro> Date: Tue May 31 15:14:01 2022 +0100 feat: support preprocess transaction on local API SDK commit 339c4a605bf819cd6d82db9bd5cc9a2260a4b9c6 Author: Verisana <account@0112.pro> Date: Tue May 31 15:11:57 2022 +0100 test: update orders to new ones commit 3c61b7b727f9990ae3bf79f38ceaebc47f815d47 Author: Verisana <account@0112.pro> Date: Mon May 30 20:01:04 2022 +0100 2.0.9 commit 19ceda4e1df34aa03833a44f7ee159d36ec60e25 Author: Verisana <account@0112.pro> Date: Mon May 30 18:34:09 2022 +0100 fix: filter out zero amounts from priceSummary commit 3092f9f92a6aefea58d7877672714b177b0cbc21 Author: Verisana <account@0112.pro> Date: Mon May 30 18:29:58 2022 +0100 feat: use swapSide in side commit 700a9fa32f13a0da218c972ed1f8b941c8ebe531 Author: Verisana <account@0112.pro> Date: Mon May 30 16:53:05 2022 +0100 test: change test orders t new ones commit 1147e06c2e2528631525c96def96228e3a37cc6a Author: Verisana <account@0112.pro> Date: Mon May 30 16:51:40 2022 +0100 chore: use tryBatchFillOrderTakerAmount for simpleSwap in limit orders commit f5127b43b417c33568c47333a259cb699e3de38e Author: Verisana <account@0112.pro> Date: Mon May 30 15:24:48 2022 +0100 2.0.8 commit f3a193d5bf195d929fcb3c47e1fecd0cf0e7da3a Author: Verisana <account@0112.pro> Date: Mon May 30 12:41:36 2022 +0100 test: small updates in test files limit orders commit 7cc34fd002a3b020d78c030689698cf21ffe20b9 Author: Verisana <account@0112.pro> Date: Mon May 30 12:41:07 2022 +0100 feat: update RFQ address config in paraswap limit orders commit c0b0aa99fbb0455953388d3bca6844c5b5f04be5 Author: Verisana <account@0112.pro> Date: Fri May 27 20:20:59 2022 +0100 2.0.7 commit 88cfd21e6af8dc30f19d979e978e359fb589b0ec Author: Verisana <account@0112.pro> Date: Fri May 27 20:19:57 2022 +0100 feat: add userAddress to ILimitOrderInterface commit 232dadf162c1655a01ae14d06092b92b84ecc347 Author: Verisana <account@0112.pro> Date: Fri May 27 20:18:17 2022 +0100 test: update e2e tests for paraswap limit orders commit 954c6913fab159813f06b8fd106ba18ba67f330f Author: Verisana <account@0112.pro> Date: Fri May 27 14:40:07 2022 +0100 2.0.6 commit e77d11b8ebb6e069c2ae58a5dcc93fdd74eafcc0 Author: Verisana <account@0112.pro> Date: Fri May 27 14:37:36 2022 +0100 feat: fix all pricing issues commit d3b35f73bab1e0a1768cd35e1ccfa3b14ddd8f1e Author: Verisana <account@0112.pro> Date: Fri May 27 14:36:17 2022 +0100 test: update tests for paraswp-limit-orders commit c22cf76ac280ef9f867f995476c0c27f7b5b5066 Author: Verisana <account@0112.pro> Date: Thu May 26 12:58:10 2022 +0100 2.0.5 commit f75a8fe973391460bf5ecbdc789814906891d77f Author: Verisana <account@0112.pro> Date: Thu May 26 12:49:18 2022 +0100 fix: undefined new Array issue commit a2517f2dbe3475ecf51a6c952a071cbc69c3e885 Author: Verisana <account@0112.pro> Date: Wed May 25 21:31:43 2022 +0100 2.0.4 commit 1ff51b22f78f9b1fc7bd60ad8e8c49264006d07f Author: Verisana <account@0112.pro> Date: Wed May 25 20:31:16 2022 +0100 feat: set proper gascost of one order commit ae0cdea9c92f5334a435fef0027e54d2ae35adbc Author: Verisana <account@0112.pro> Date: Wed May 25 19:26:47 2022 +0100 test: update tests with new names commit 7c4e8d50ae8231d10aace64ddc57e706007a0f5e Author: Verisana <account@0112.pro> Date: Wed May 25 19:26:15 2022 +0100 feat: rename orderBook to priceSummary, account gas and fix src - dest mismatch commit 61400388c195b4ad681a091b8a5c3816976b5deb Author: Verisana <account@0112.pro> Date: Wed May 25 19:00:06 2022 +0100 refactor: remove takerTokenFillAmount handler commit 4b874215a1d42bcf52ae9ac85cd8d0551258b464 Author: Verisana <account@0112.pro> Date: Tue May 24 20:28:44 2022 +0100 2.0.3 commit 16f44f19c5c813e9413e34f3d795a8687848435b Author: Verisana <account@0112.pro> Date: Tue May 24 20:26:25 2022 +0100 test: update test utils commit d453f238ed428cf9857269d4bac1a7cdd69a4c2c Author: Verisana <account@0112.pro> Date: Tue May 24 20:25:56 2022 +0100 feat: update files for paraswap limit order provider commit e2373918ab436ecaeeda12502bf228a97507f233 Author: Verisana <account@0112.pro> Date: Tue May 24 20:25:13 2022 +0100 feat: update simpleSwap encoding for paraswap-limit-orders commit 9c9f45dacd817a8e26f8573bde22c1bc9f9e8a86 Author: Verisana <account@0112.pro> Date: Tue May 24 20:24:34 2022 +0100 feat: add AugustusABI file commit eca1c511a585f9c2b4fcee94ad4b9578fcbaa076 Author: Verisana <account@0112.pro> Date: Tue May 24 20:24:17 2022 +0100 test: write tests for limit order provider commit d263460256d06f76b278da37311fef307190d307 Author: Verisana <account@0112.pro> Date: Mon May 23 20:54:13 2022 +0100 2.0.2 commit 4a7b7558ab1fea0822b456c1d4dc8d88ef74fc65 Author: Verisana <account@0112.pro> Date: Mon May 23 20:33:04 2022 +0100 build: add ethers to dependencies commit a1f69a78d4d250d708ef55751333a3db715f6b4a Author: Verisana <account@0112.pro> Date: Mon May 23 20:30:46 2022 +0100 test: update tests. But teh examples are not correct commit 010e6bad9d1f445ddf3b58a9fc1b2ed93e166ceb Author: Verisana <account@0112.pro> Date: Mon May 23 20:27:48 2022 +0100 fix: set gasCost[0] to zero commit a0d8f96022012d075f93798cafc731009b8f8c46 Author: Verisana <account@0112.pro> Date: Mon May 23 19:29:05 2022 +0100 feat: small fixes on paraswap-limit-order commit 5aa2c658fe356a261c3592a292d04807aed85bce Author: Verisana <account@0112.pro> Date: Fri May 20 15:08:38 2022 +0100 feat: make the access restricted in pacjage.json commit b5b6e09b5a6f87a52bd70a87a07aa99c94742ac1 Author: Verisana <account@0112.pro> Date: Fri May 20 15:02:50 2022 +0100 feat: prepare package.json for publishing commit 479d1ed65cfd76ed0aa0336ead4b883e733be460 Author: Verisana <account@0112.pro> Date: Fri May 20 13:46:18 2022 +0100 feat: update paraswap-limit-orders commit b9fdc12d023003e690bad569331dced6cd4e4732 Author: Verisana <account@0112.pro> Date: Fri May 20 13:45:20 2022 +0100 test: update tests for paraswap-limit-orders commit 132e27e34b5af9553b289d20c9260890f654298f Author: Verisana <account@0112.pro> Date: Fri May 20 12:21:58 2022 +0100 feat: create DummyLimitORderProvider for tests commit fbeabbf3d48effef0b043092f8b921ec02710ae3 Author: Verisana <account@0112.pro> Date: Fri May 20 12:21:22 2022 +0100 feat: use swppableBalance whe filling the order commit b15284910bc464a19dece6d6fd19121f062e1671 Author: Verisana <account@0112.pro> Date: Thu May 19 23:47:39 2022 +0100 feat: add getDexByKey in price-helper and create preprocessTransactionOption type commit 4ea44c7ef54c291c7fedc1c1ca5cd5817389e577 Author: Verisana <account@0112.pro> Date: Thu May 19 23:23:11 2022 +0100 feat: use payload in buildTransaction commit 7bd84878516cb33b1e557ca4086139663fe95d2b Author: Verisana <account@0112.pro> Date: Thu May 19 20:46:15 2022 +0100 fix: small bug fix commit a023a2e6a747f4874a27ed37e9086e282ecceea9 Author: Verisana <account@0112.pro> Date: Thu May 19 20:44:51 2022 +0100 feat: update fetchOrderBook function in ILimitOrderProvider commit 03ec2125339833f5bc4d8023963fa2d125c8d4b0 Author: Verisana <account@0112.pro> Date: Thu May 19 18:08:22 2022 +0100 feat: started adding preprocessTransaction to paraswap limit order commit bd3ebed37ff8b02f8d7a2e22d44fa870d68e8a9e Author: Verisana <account@0112.pro> Date: Thu May 19 13:26:46 2022 +0100 feat: remove direct cache usage in paraswap limit-order provider commit 26e08164485e80f62057100309b700c20e987773 Author: Verisana <account@0112.pro> Date: Thu May 19 13:24:13 2022 +0100 feat: add new fetchOrderBook function to limit order provider commit 14b06b564b4ae838090a863f240ced53bf24f048 Author: Verisana <account@0112.pro> Date: Thu May 19 13:13:13 2022 +0100 refactor: remove getTopPools implementation in paraswap limit order commit 6cf3017928eb977596b9bef79c0d06e170598e0d Merge: 123337b 6acc3d6 Author: Verisana <account@0112.pro> Date: Wed May 18 20:49:18 2022 +0100 Merge branch 'master' into feature/back-585 commit 123337b7a9ad2c2b8833f144bfcce5cc3b630270 Author: Verisana <account@0112.pro> Date: Wed May 18 20:41:39 2022 +0100 feat: add cache prefix in constants commit c1d3006ec250f0ba8377cc27ebe7dc71f20973d9 Author: Verisana <account@0112.pro> Date: Wed May 18 20:41:27 2022 +0100 feat: implement Dex for limit-order commit 5a4f857f5341151e00411277b02c1c777f2818b2 Author: Verisana <account@0112.pro> Date: Wed May 18 20:40:59 2022 +0100 feat: adjust interface of iLimitOrderProvider to current needs commit 268ea0b1cc66e5a90267686cc5684ae9966f40d8 Author: Verisana <account@0112.pro> Date: Wed May 18 20:40:23 2022 +0100 feat: make getAdapterParam syncOrAsync commit f2d3fe1a3ac7db24e4b9b6422eedd03ec2a8486d Author: Verisana <account@0112.pro> Date: Tue May 17 22:50:17 2022 +0100 feat: update Paraswap limit order service commit e6e8ed7d3ee846570b13db0777c2f9b431a31927 Merge: 661e2e4 f84ed57 Author: Verisana <account@0112.pro> Date: Tue May 17 19:33:36 2022 +0100 Merge remote-tracking branch 'dexlib/feature/back-585' into feature/back-585 commit 661e2e42e269ee1fb467f0363ac8e17265e6c123 Merge: 08bc977 0f23e27 Author: Verisana <account@0112.pro> Date: Tue May 17 14:37:27 2022 +0100 Merge branch 'master' into feature/back-585 commit 08bc977662794334292bc4c434796296aad88947 Author: Verisana <account@0112.pro> Date: Wed May 4 22:02:20 2022 +0100 feat: remove initialize pricing for paraswap-limit-order provider commit 7f76f2dd45844a42c331c5e75a54f9ede6c9bdfe Author: Verisana <account@0112.pro> Date: Wed May 4 21:56:50 2022 +0100 feat: update implementation for paraswap limit order commit 586c8ae425abde599e85b9d9c112e62c525e2c8a Author: Verisana <account@0112.pro> Date: Wed May 4 21:55:54 2022 +0100 feat: update ILimitOrderProvider commit a5fda4d555c7cd747a10068990ece8a024be286d Author: Verisana <account@0112.pro> Date: Wed May 4 21:54:44 2022 +0100 test: remove event base test for ParaSwap LimitOrder commit fda0bf6337f976442c4160de4e761e8a8e6d2dae Author: Verisana <account@0112.pro> Date: Wed May 4 16:22:42 2022 +0100 feat: use generic for limit-order-exchange commit 6f7c596d22bedd9bb62386e646a5ee463ddb931c Author: Verisana <account@0112.pro> Date: Wed May 4 16:21:28 2022 +0100 feat: update all parts for paraswap-limit-order commit 2304e9220ad7c88d2bb315d1dd618935ead2751d Author: Verisana <account@0112.pro> Date: Wed May 4 16:20:23 2022 +0100 refactor: move AdapterMappings to src types commit ca71caef99db7ade2fb32d585ab3744ccfb31dd3 Author: Verisana <account@0112.pro> Date: Wed May 4 16:17:07 2022 +0100 feat: update ilimit-order-providers commit b3bd025d3aeb3a962893454f15b67fb525c0271a Author: Verisana <account@0112.pro> Date: Tue May 3 21:13:14 2022 +0100 feat: use enum for namings commit 1eccc1efb42487d8203b40d753760f25359d566c Author: Verisana <account@0112.pro> Date: Tue May 3 20:01:19 2022 +0100 feat: initialize paraswap-limit-order integration commit cbcffe8c76ba34381b9d8a3ba0c8899816097105 Author: Verisana <account@0112.pro> Date: Tue May 3 20:00:43 2022 +0100 feat: create ILimitOrderProvider commit 0b9107ec1c5febf07a0fa7330427b7a6e17a6506 Author: Verisana <account@0112.pro> Date: Tue May 3 20:00:02 2022 +0100 feat: create LimitOrderExchange from SimpleExchange
Native-org · Jun 21, 2022 · 1fc68d4 · 1fc68d4
1 parent acab2e5
commit 1fc68d4
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Showing 24 changed files with 1,505 additions and 21 deletions.
diff --git a/.gitignore b/.gitignore
@@ -8,3 +8,4 @@ tests/logs.json
 tests/states.json
 tests/configs.json
 .idea/
+local-scripts
diff --git a/package.json b/package.json
@@ -3,12 +3,11 @@
   "version": "2.0.46",
   "main": "build/index.js",
   "types": "build/index.d.ts",
-  "repository": "https://github.com/paraswap/paraswap-dex-lib",
   "author": "dev@paraswap.io",
   "license": "MIT",
   "private": false,
   "publishConfig": {
-    "access": "public"
+    "access": "restricted"
   },
   "devDependencies": {
     "@types/axios": "0.14.0",
@@ -41,6 +40,7 @@
     "@ethersproject/bytes": "^5.6.1",
     "@ethersproject/contracts": "5.4.1",
     "@ethersproject/providers": "5.4.1",
+    "ethers": "^5.6.7",
     "lens.ts": "^0.5.1",
     "lodash": "4.17.21",
     "log4js": "6.3.0",

diff --git a/src/bigint-constants.ts b/src/bigint-constants.ts
@@ -9,4 +9,5 @@ export const BI_POWS = new Array(37)
 export const BI_MAX_INT = BigInt(MAX_INT);
 export const BI_MAX_UINT = 2n ** 256n - 1n;
 export const BI_MAX_UINT96 = 2n ** 96n - 1n;
+
 export const BI_ADDR_MASK = (1n << 160n) - 1n;
diff --git a/src/constants.ts b/src/constants.ts
@@ -68,3 +68,7 @@ export const AugustusAddress: { [nid: number]: Address } = {
 };
 
 export const SUBGRAPH_TIMEOUT = 20 * 1000;
+
+export enum LIMIT_ORDER_PROVIDERS {
+  PARASWAP = 'ParaSwapLimitOrderProvider',
+}
diff --git a/src/dex-helper/dummy-limit-order-provider.ts b/src/dex-helper/dummy-limit-order-provider.ts
@@ -0,0 +1,81 @@
+import { ILimitOrderProvider } from './ilimit-order-provider';
+import {
+  ParaswapLimitOrderResponse,
+  ParaswapPriceSummaryResponse,
+} from '../dex/paraswap-limit-orders/types';
+import { SwapSide, Network, LIMIT_ORDER_PROVIDERS } from '../constants';
+import { Address, BigIntAsString } from '../types';
+
+export class DummyLimitOrderProvider
+  implements
+    ILimitOrderProvider<
+      ParaswapLimitOrderResponse,
+      ParaswapPriceSummaryResponse
+    >
+{
+  readonly name: LIMIT_ORDER_PROVIDERS = LIMIT_ORDER_PROVIDERS.PARASWAP;
+
+  private readonly _priceSummary: {
+    [key in string]: ParaswapPriceSummaryResponse[];
+  } = {};
+
+  private readonly _ordersToExecute: {
+    [key in number]: ParaswapLimitOrderResponse[];
+  } = {};
+
+  async fetchAndReserveOrders(
+    network: Network,
+    srcAddress: Address,
+    destAddress: Address,
+    srcAmount: BigIntAsString,
+    destAmount: BigIntAsString,
+    swapSide: SwapSide,
+    userAddress: Address,
+    backupOrdersMaxPercent?: number,
+    backupOrdersMinCount?: number,
+  ): Promise<ParaswapLimitOrderResponse[] | null> {
+    return this._ordersToExecute[network]
+      ? this._ordersToExecute[network]
+      : null;
+  }
+
+  async fetchPriceSummary(
+    network: Network,
+    src: Address,
+    dest: Address,
+  ): Promise<ParaswapPriceSummaryResponse[] | null> {
+    const key = DummyLimitOrderProvider.getPriceSummaryCacheKey(
+      network,
+      src,
+      dest,
+    );
+    const priceSummary = this._priceSummary[key];
+    return priceSummary === undefined ? null : priceSummary;
+  }
+
+  setPriceSummary(
+    network: Network,
+    src: Address,
+    dest: Address,
+    priceSummary: ParaswapPriceSummaryResponse[],
+  ) {
+    const key = DummyLimitOrderProvider.getPriceSummaryCacheKey(
+      network,
+      src,
+      dest,
+    );
+    this._priceSummary[key] = priceSummary;
+  }
+
+  setOrdersToExecute(network: number, orders: ParaswapLimitOrderResponse[]) {
+    this._ordersToExecute[network] = orders;
+  }
+
+  static getPriceSummaryCacheKey(
+    network: Network,
+    src: Address,
+    dest: Address,
+  ) {
+    return `${network}_${dest.toLowerCase()}_${src.toLowerCase()}`;
+  }
+}
diff --git a/src/dex-helper/ilimit-order-provider.ts b/src/dex-helper/ilimit-order-provider.ts
@@ -0,0 +1,30 @@
+import { BigIntAsString, Address } from '../types';
+import { LIMIT_ORDER_PROVIDERS, Network } from '../constants';
+import { SwapSide } from 'paraswap-core';
+
+export interface ILimitOrderProvider<
+  LimitOrderResponse,
+  LimitOrderPriceSummaryResponse,
+> {
+  name: LIMIT_ORDER_PROVIDERS;
+
+  // null is for the case when some orders are not available after the lag
+  // between requesting the prices and actually building the order
+  fetchAndReserveOrders(
+    network: Network,
+    srcAddress: Address,
+    destAddress: Address,
+    srcAmount: BigIntAsString,
+    destAmount: BigIntAsString,
+    swapSide: SwapSide,
+    userAddress: Address,
+    backupOrdersMaxPercent?: number,
+    backupOrdersMinCount?: number,
+  ): Promise<LimitOrderResponse[] | null>;
+
+  fetchPriceSummary(
+    network: Network,
+    src: Address,
+    dest: Address,
+  ): Promise<LimitOrderPriceSummaryResponse[] | null>;
+}
diff --git a/src/dex-helper/index.ts b/src/dex-helper/index.ts
@@ -7,3 +7,5 @@ export { IRequestWrapper } from './irequest-wrapper';
 export { IBlockManager, EventSubscriber } from './iblock-manager';
 
 export { DummyDexHelper } from './dummy-dex-helper';
+
+export { DummyLimitOrderProvider } from './dummy-limit-order-provider'
diff --git a/src/dex/idex.ts b/src/dex/idex.ts
@@ -8,6 +8,9 @@ import {
   Token,
   ExchangePrices,
   PoolLiquidity,
+  OptimalSwapExchange,
+  ExchangeTxInfo,
+  PreprocessTransactionOptions,
 } from '../types';
 import { SwapSide, Network } from '../constants';
 import { IDexHelper } from '../dex-helper/idex-helper';
@@ -27,6 +30,18 @@ export interface IDexTxBuilder<ExchangeData, DirectParam = null> {
     side: SwapSide,
   ): NumberAsString;
 
+  // If exists, called before getAdapterParam to use async calls and receive data if needed
+  preProcessTransaction?(
+    optimalSwapExchange: OptimalSwapExchange<ExchangeData>,
+    srcToken: Token,
+    destToken: Token,
+    side: SwapSide,
+    options: PreprocessTransactionOptions,
+  ): AsyncOrSync<[OptimalSwapExchange<ExchangeData>, ExchangeTxInfo]>;
+
+  // This is helper a function to support testing if preProcessTransaction is implemented
+  getTokenFromAddress?(address: Address): Token;
+
   // Encode params required by the exchange adapter
   // Used for multiSwap, buy & megaSwap
   getAdapterParam(

diff --git a/src/dex/index.ts b/src/dex/index.ts
@@ -42,6 +42,7 @@ import { Platypus } from './platypus/platypus';
 import { GMX } from './gmx/gmx';
 import { WooFi } from './woo-fi/woo-fi';
 import { Dystopia } from './uniswap-v2/dystopia/dystopia';
+import { ParaswapLimitOrders } from './paraswap-limit-orders/paraswap-limit-orders';
 import { AugustusRFQOrder } from './augustus-rfq';
 
 const LegacyDexes = [
@@ -84,6 +85,7 @@ const Dexes = [
   GMX,
   WooFi,
   Dystopia,
+  ParaswapLimitOrders,
 ];
 
 const AdapterNameAddressMap: {
@@ -105,8 +107,8 @@ const AdapterNameAddressMap: {
     BscBuyAdapter: '0xdA0DAFbbC95d96bAb164c847112e15c0299541f6',
   },
   [Network.ROPSTEN]: {
-    RopstenAdapter01: '0x74fF86C61CF66334dCfc999814DE4695B4BaE57b',
-    RopstenBuyAdapter: '0xDDbaC07C9ef96D6E792c25Ff934E7e111241BFf1',
+    RopstenAdapter01: '0x59b7F6258e78C3E5234bb651656EDd0e08868cd5',
+    RopstenBuyAdapter: '0x63e908A4C793a33e40254362ED1A5997a234D85C',
   },
   [Network.AVALANCHE]: {
     AvalancheAdapter01: '0xC79cf51b0951418cb7B010e38c3ceB8801E53184',

diff --git a/src/dex/limit-order-exchange.ts b/src/dex/limit-order-exchange.ts
@@ -0,0 +1,39 @@
+import { Provider } from '@ethersproject/providers';
+import { LIMIT_ORDER_PROVIDERS } from '../constants';
+import { ILimitOrderProvider } from '../dex-helper/ilimit-order-provider';
+import { Address } from '../types';
+import { SimpleExchange } from './simple-exchange';
+
+export abstract class LimitOrderExchange<
+  LimitOrderResponse,
+  LimitOrderPriceSummaryResponse,
+> extends SimpleExchange {
+  protected _limitOrderProvider?: ILimitOrderProvider<
+    LimitOrderResponse,
+    LimitOrderPriceSummaryResponse
+  >;
+
+  constructor(augustusAddress: Address, provider: Provider) {
+    super(augustusAddress, provider);
+  }
+
+  abstract get limitOrderProviderName(): LIMIT_ORDER_PROVIDERS;
+
+  set limitOrderProvider(
+    limitOrderProvider: ILimitOrderProvider<
+      LimitOrderResponse,
+      LimitOrderPriceSummaryResponse
+    >,
+  ) {
+    if (
+      this.limitOrderProviderName.toLowerCase() ===
+      limitOrderProvider.name.toLowerCase()
+    ) {
+      this._limitOrderProvider = limitOrderProvider;
+    } else {
+      throw new Error(
+        `Given wrong limitOrderProvider: '${limitOrderProvider.name}'. Expected: '${this.limitOrderProviderName}'`,
+      );
+    }
+  }
+}
diff --git a/src/dex/nerve/config.ts b/src/dex/nerve/config.ts
@@ -1,6 +1,6 @@
 import { SwapSide } from 'paraswap-core';
 import { DexParams } from './types';
-import { DexConfigMap, AdapterMappings } from '../../types';
+import { AdapterMappings, DexConfigMap } from '../../types';
 import { Network } from '../../constants';
 import nervePoolABI from '../../abi/nerve/nerve-pool.json';
 import axialPoolABI from '../../abi/nerve/axial-pool.json';

diff --git a/src/dex/paraswap-limit-orders/config.ts b/src/dex/paraswap-limit-orders/config.ts
@@ -0,0 +1,38 @@
+import { DexParams } from './types';
+import { AdapterMappings, DexConfigMap } from '../../types';
+import { Network, SwapSide } from '../../constants';
+
+export const ParaswapLimitOrdersConfig: DexConfigMap<DexParams> = {
+  ParaswapLimitOrders: {
+    [Network.ROPSTEN]: {
+      rfqAddress: '0x34268C38fcbC798814b058656bC0156C7511c0E4',
+    },
+  },
+};
+
+export const Adapters: Record<number, AdapterMappings> = {
+  [Network.AVALANCHE]: {
+    [SwapSide.SELL]: [{ name: 'AvalancheAdapter01', index: 9 }],
+    [SwapSide.BUY]: [{ name: 'AvalancheBuyAdapter', index: 2 }],
+  },
+  [Network.BSC]: {
+    [SwapSide.SELL]: [{ name: 'BscAdapter01', index: 13 }],
+    [SwapSide.BUY]: [{ name: 'BscBuyAdapter', index: 2 }],
+  },
+  [Network.FANTOM]: {
+    [SwapSide.SELL]: [{ name: 'FantomAdapter01', index: 6 }],
+    [SwapSide.BUY]: [{ name: 'FantomBuyAdapter', index: 2 }],
+  },
+  [Network.MAINNET]: {
+    [SwapSide.SELL]: [{ name: 'Adapter03', index: 9 }],
+    [SwapSide.BUY]: [{ name: 'BuyAdapter', index: 5 }],
+  },
+  [Network.POLYGON]: {
+    [SwapSide.SELL]: [{ name: 'PolygonAdapter01', index: 14 }],
+    [SwapSide.BUY]: [{ name: 'PolygonBuyAdapter', index: 3 }],
+  },
+  [Network.ROPSTEN]: {
+    [SwapSide.SELL]: [{ name: 'RopstenAdapter01', index: 2 }],
+    [SwapSide.BUY]: [{ name: 'RopstenBuyAdapter', index: 2 }],
+  },
+};
diff --git a/src/dex/paraswap-limit-orders/constant.ts b/src/dex/paraswap-limit-orders/constant.ts
@@ -0,0 +1 @@
+export const ONE_ORDER_GASCOST = 65500;
Original file line number	Diff line number	Diff line change
Expand Up		@@ -7,3 +7,5 @@ export { IRequestWrapper } from './irequest-wrapper';
		export { IBlockManager, EventSubscriber } from './iblock-manager';

		export { DummyDexHelper } from './dummy-dex-helper';

		export { DummyLimitOrderProvider } from './dummy-limit-order-provider'