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-rw-r--r--packages/contract-wrappers/CHANGELOG.json62
-rw-r--r--packages/contract-wrappers/CHANGELOG.md9
-rw-r--r--packages/contract-wrappers/package.json30
-rw-r--r--packages/contract-wrappers/src/contract_wrappers.ts10
-rw-r--r--packages/contract-wrappers/src/contract_wrappers/dutch_auction_wrapper.ts182
-rw-r--r--packages/contract-wrappers/src/fetchers/asset_balance_and_proxy_allowance_fetcher.ts74
-rw-r--r--packages/contract-wrappers/src/index.ts15
-rw-r--r--packages/contract-wrappers/src/types.ts12
-rw-r--r--packages/contract-wrappers/src/utils/assert.ts2
-rw-r--r--packages/contract-wrappers/test/dutch_auction_wrapper_test.ts128
-rw-r--r--packages/contract-wrappers/test/utils/dutch_auction_utils.ts153
11 files changed, 598 insertions, 79 deletions
diff --git a/packages/contract-wrappers/CHANGELOG.json b/packages/contract-wrappers/CHANGELOG.json
index d39027797..2ba6c9f10 100644
--- a/packages/contract-wrappers/CHANGELOG.json
+++ b/packages/contract-wrappers/CHANGELOG.json
@@ -1,9 +1,23 @@
[
{
+ "version": "4.2.0",
+ "changes": [
+ {
+ "note": "Added Dutch Auction wrapper",
+ "pr": 1465
+ }
+ ],
+ "timestamp": 1547040760
+ },
+ {
"version": "4.1.4",
"changes": [
{
"note": "Add support for Trust Wallet signature denial error"
+ },
+ {
+ "note": "Add balance and allowance queries for `MultiAssetProxy`",
+ "pr": 1363
}
]
},
@@ -38,8 +52,7 @@
"version": "4.1.0",
"changes": [
{
- "note":
- "Add a `nonce` field for `TxOpts` so that it's now possible to re-broadcast stuck transactions with a higher gas amount",
+ "note": "Add a `nonce` field for `TxOpts` so that it's now possible to re-broadcast stuck transactions with a higher gas amount",
"pr": 1292
}
],
@@ -67,18 +80,15 @@
"version": "4.0.0",
"changes": [
{
- "note":
- "Add signature validation, regular cancellation and `cancelledUpTo` checks to `validateOrderFillableOrThrowAsync`",
+ "note": "Add signature validation, regular cancellation and `cancelledUpTo` checks to `validateOrderFillableOrThrowAsync`",
"pr": 1235
},
{
- "note":
- "Improved the errors thrown by `validateOrderFillableOrThrowAsync` by making them more descriptive",
+ "note": "Improved the errors thrown by `validateOrderFillableOrThrowAsync` by making them more descriptive",
"pr": 1235
},
{
- "note":
- "Throw previously swallowed network errors when calling `validateOrderFillableOrThrowAsync` (see issue: #1218)",
+ "note": "Throw previously swallowed network errors when calling `validateOrderFillableOrThrowAsync` (see issue: #1218)",
"pr": 1235
}
],
@@ -109,28 +119,23 @@
"pr": 1105
},
{
- "note":
- "Default contract addresses are no longer stored in artifacts and are instead loaded from the `@0xproject/contract-addresses` package.",
+ "note": "Default contract addresses are no longer stored in artifacts and are instead loaded from the `@0xproject/contract-addresses` package.",
"pr": 1105
},
{
- "note":
- "Most contract addresses are now defined at instantiation time and are available as properties (e.g., `exchangeWrapper.address`) instead of methods (e.g., `exchangeWrapper.getContractAddress()`).",
+ "note": "Most contract addresses are now defined at instantiation time and are available as properties (e.g., `exchangeWrapper.address`) instead of methods (e.g., `exchangeWrapper.getContractAddress()`).",
"pr": 1105
},
{
- "note":
- "Removed `setProvider` method in top-level `ContractWrapper` class and added new `unsubscribeAll` method.",
+ "note": "Removed `setProvider` method in top-level `ContractWrapper` class and added new `unsubscribeAll` method.",
"pr": 1105
},
{
- "note":
- "Some properties and methods have been renamed. For example, some methods that previously could throw no longer can, and so their names have been updated accordingly.",
+ "note": "Some properties and methods have been renamed. For example, some methods that previously could throw no longer can, and so their names have been updated accordingly.",
"pr": 1105
},
{
- "note":
- "Removed ContractNotFound errors. Checking for this error was somewhat ineffecient. Relevant methods/functions now return the default error from web3-wrapper, which we feel provides enough information.",
+ "note": "Removed ContractNotFound errors. Checking for this error was somewhat ineffecient. Relevant methods/functions now return the default error from web3-wrapper, which we feel provides enough information.",
"pr": 1105
},
{
@@ -166,13 +171,11 @@
"version": "2.0.0",
"changes": [
{
- "note":
- "Fixes dropped events in subscriptions by fetching logs by blockHash instead of blockNumber. Support for fetching by blockHash was added in Geth > v1.8.13 and Parity > v2.1.0. Infura works too.",
+ "note": "Fixes dropped events in subscriptions by fetching logs by blockHash instead of blockNumber. Support for fetching by blockHash was added in Geth > v1.8.13 and Parity > v2.1.0. Infura works too.",
"pr": 1080
},
{
- "note":
- "Fix misunderstanding about blockstream interface callbacks and pass the raw JSON RPC responses to it",
+ "note": "Fix misunderstanding about blockstream interface callbacks and pass the raw JSON RPC responses to it",
"pr": 1080
}
],
@@ -221,18 +224,15 @@
"note": "Add `OrderValidatorWrapper`"
},
{
- "note":
- "Fix bug where contracts not deployed on a network showed an `EXCHANGE_CONTRACT_DOES_NOT_EXIST` error instead of `CONTRACT_NOT_DEPLOYED_ON_NETWORK`",
+ "note": "Fix bug where contracts not deployed on a network showed an `EXCHANGE_CONTRACT_DOES_NOT_EXIST` error instead of `CONTRACT_NOT_DEPLOYED_ON_NETWORK`",
"pr": 1044
},
{
- "note":
- "Export `AssetBalanceAndProxyAllowanceFetcher` and `OrderFilledCancelledFetcher` implementations",
+ "note": "Export `AssetBalanceAndProxyAllowanceFetcher` and `OrderFilledCancelledFetcher` implementations",
"pr": 1054
},
{
- "note":
- "Add `validateOrderFillableOrThrowAsync` and `validateFillOrderThrowIfInvalidAsync` to ExchangeWrapper",
+ "note": "Add `validateOrderFillableOrThrowAsync` and `validateFillOrderThrowIfInvalidAsync` to ExchangeWrapper",
"pr": 1054
}
],
@@ -251,13 +251,11 @@
"version": "1.0.1-rc.4",
"changes": [
{
- "note":
- "Export missing types: `TransactionEncoder`, `ContractAbi`, `JSONRPCRequestPayload`, `JSONRPCResponsePayload`, `JSONRPCErrorCallback`, `AbiDefinition`, `FunctionAbi`, `EventAbi`, `EventParameter`, `DecodedLogArgs`, `MethodAbi`, `ConstructorAbi`, `FallbackAbi`, `DataItem`, `ConstructorStateMutability`, `StateMutability` & `ExchangeSignatureValidatorApprovalEventArgs`",
+ "note": "Export missing types: `TransactionEncoder`, `ContractAbi`, `JSONRPCRequestPayload`, `JSONRPCResponsePayload`, `JSONRPCErrorCallback`, `AbiDefinition`, `FunctionAbi`, `EventAbi`, `EventParameter`, `DecodedLogArgs`, `MethodAbi`, `ConstructorAbi`, `FallbackAbi`, `DataItem`, `ConstructorStateMutability`, `StateMutability` & `ExchangeSignatureValidatorApprovalEventArgs`",
"pr": 924
},
{
- "note":
- "Remove superfluous exported types: `ContractEvent`, `Token`, `OrderFillRequest`, `ContractEventArgs`, `LogEvent`, `OnOrderStateChangeCallback`, `ECSignature`, `OrderStateValid`, `OrderStateInvalid`, `OrderState`, `FilterObject`, `TransactionReceipt` & `TransactionReceiptWithDecodedLogs`",
+ "note": "Remove superfluous exported types: `ContractEvent`, `Token`, `OrderFillRequest`, `ContractEventArgs`, `LogEvent`, `OnOrderStateChangeCallback`, `ECSignature`, `OrderStateValid`, `OrderStateInvalid`, `OrderState`, `FilterObject`, `TransactionReceipt` & `TransactionReceiptWithDecodedLogs`",
"pr": 924
},
{
diff --git a/packages/contract-wrappers/CHANGELOG.md b/packages/contract-wrappers/CHANGELOG.md
index 595fbcc31..fe7bb7b81 100644
--- a/packages/contract-wrappers/CHANGELOG.md
+++ b/packages/contract-wrappers/CHANGELOG.md
@@ -5,6 +5,15 @@ Edit the package's CHANGELOG.json file only.
CHANGELOG
+## v4.2.0 - _January 9, 2019_
+
+ * Added Dutch Auction wrapper (#1465)
+
+## v4.1.4 - _Invalid date_
+
+ * Add support for Trust Wallet signature denial error
+ * Add balance and allowance queries for `MultiAssetProxy` (#1363)
+
## v4.1.3 - _December 13, 2018_
* Dependencies updated
diff --git a/packages/contract-wrappers/package.json b/packages/contract-wrappers/package.json
index f3f7301fd..708b4249a 100644
--- a/packages/contract-wrappers/package.json
+++ b/packages/contract-wrappers/package.json
@@ -1,6 +1,6 @@
{
"name": "@0x/contract-wrappers",
- "version": "4.1.3",
+ "version": "4.2.0",
"description": "Smart TS wrappers for 0x smart contracts",
"keywords": [
"0xproject",
@@ -37,9 +37,9 @@
"node": ">=6.0.0"
},
"devDependencies": {
- "@0x/dev-utils": "^1.0.21",
- "@0x/migrations": "^2.2.2",
- "@0x/subproviders": "^2.1.8",
+ "@0x/dev-utils": "^1.0.22",
+ "@0x/migrations": "^2.3.0",
+ "@0x/subproviders": "^2.1.9",
"@0x/tslint-config": "^2.0.0",
"@types/lodash": "4.14.104",
"@types/mocha": "^2.2.42",
@@ -65,18 +65,20 @@
"web3-provider-engine": "14.0.6"
},
"dependencies": {
- "@0x/abi-gen-wrappers": "^2.0.2",
- "@0x/assert": "^1.0.20",
- "@0x/contract-addresses": "^2.0.0",
- "@0x/contract-artifacts": "^1.1.2",
- "@0x/fill-scenarios": "^1.0.16",
- "@0x/json-schemas": "^2.1.4",
- "@0x/order-utils": "^3.0.7",
- "@0x/types": "^1.4.1",
+ "@0x/abi-gen-wrappers": "^2.1.0",
+ "@0x/assert": "^1.0.21",
+ "@0x/contract-addresses": "^2.1.0",
+ "@0x/contract-artifacts": "^1.2.0",
+ "@0x/contracts-test-utils": "^1.0.3",
+ "@0x/fill-scenarios": "^1.1.0",
+ "@0x/json-schemas": "^2.1.5",
+ "@0x/order-utils": "^3.1.0",
+ "@0x/types": "^1.5.0",
"@0x/typescript-typings": "^3.0.6",
- "@0x/utils": "^2.0.8",
- "@0x/web3-wrapper": "^3.2.1",
+ "@0x/utils": "^2.1.1",
+ "@0x/web3-wrapper": "^3.2.2",
"ethereum-types": "^1.1.4",
+ "ethereumjs-abi": "0.6.5",
"ethereumjs-blockstream": "6.0.0",
"ethereumjs-util": "^5.1.1",
"ethers": "~4.0.4",
diff --git a/packages/contract-wrappers/src/contract_wrappers.ts b/packages/contract-wrappers/src/contract_wrappers.ts
index 0c535bd5c..4e594593e 100644
--- a/packages/contract-wrappers/src/contract_wrappers.ts
+++ b/packages/contract-wrappers/src/contract_wrappers.ts
@@ -12,6 +12,7 @@ import { Web3Wrapper } from '@0x/web3-wrapper';
import { Provider } from 'ethereum-types';
import * as _ from 'lodash';
+import { DutchAuctionWrapper } from './contract_wrappers/dutch_auction_wrapper';
import { ERC20ProxyWrapper } from './contract_wrappers/erc20_proxy_wrapper';
import { ERC20TokenWrapper } from './contract_wrappers/erc20_token_wrapper';
import { ERC721ProxyWrapper } from './contract_wrappers/erc721_proxy_wrapper';
@@ -65,6 +66,10 @@ export class ContractWrappers {
* An instance of the OrderValidatorWrapper class containing methods for interacting with any OrderValidator smart contract.
*/
public orderValidator: OrderValidatorWrapper;
+ /**
+ * An instance of the DutchAuctionWrapper class containing methods for interacting with any DutchAuction smart contract.
+ */
+ public dutchAuction: DutchAuctionWrapper;
private readonly _web3Wrapper: Web3Wrapper;
/**
@@ -141,6 +146,11 @@ export class ContractWrappers {
config.networkId,
contractAddresses.orderValidator,
);
+ this.dutchAuction = new DutchAuctionWrapper(
+ this._web3Wrapper,
+ config.networkId,
+ contractAddresses.dutchAuction,
+ );
}
/**
* Unsubscribes from all subscriptions for all contracts.
diff --git a/packages/contract-wrappers/src/contract_wrappers/dutch_auction_wrapper.ts b/packages/contract-wrappers/src/contract_wrappers/dutch_auction_wrapper.ts
new file mode 100644
index 000000000..c1aceff47
--- /dev/null
+++ b/packages/contract-wrappers/src/contract_wrappers/dutch_auction_wrapper.ts
@@ -0,0 +1,182 @@
+import { DutchAuctionContract } from '@0x/abi-gen-wrappers';
+import { DutchAuction } from '@0x/contract-artifacts';
+import { schemas } from '@0x/json-schemas';
+import { assetDataUtils } from '@0x/order-utils';
+import { DutchAuctionDetails, SignedOrder } from '@0x/types';
+import { BigNumber } from '@0x/utils';
+import { Web3Wrapper } from '@0x/web3-wrapper';
+import { ContractAbi } from 'ethereum-types';
+import * as ethAbi from 'ethereumjs-abi';
+import * as ethUtil from 'ethereumjs-util';
+import * as _ from 'lodash';
+
+import { orderTxOptsSchema } from '../schemas/order_tx_opts_schema';
+import { txOptsSchema } from '../schemas/tx_opts_schema';
+import { DutchAuctionData, DutchAuctionWrapperError, OrderTransactionOpts } from '../types';
+import { assert } from '../utils/assert';
+import { _getDefaultContractAddresses } from '../utils/contract_addresses';
+
+import { ContractWrapper } from './contract_wrapper';
+
+export class DutchAuctionWrapper extends ContractWrapper {
+ public abi: ContractAbi = DutchAuction.compilerOutput.abi;
+ public address: string;
+ private _dutchAuctionContractIfExists?: DutchAuctionContract;
+ /**
+ * Dutch auction details are encoded with the asset data for a 0x order. This function produces a hex
+ * encoded assetData string, containing information both about the asset being traded and the
+ * dutch auction; which is usable in the makerAssetData or takerAssetData fields in a 0x order.
+ * @param assetData Hex encoded assetData string for the asset being auctioned.
+ * @param beginTimeSeconds Begin time of the dutch auction.
+ * @param beginAmount Starting amount being sold in the dutch auction.
+ * @return The hex encoded assetData string.
+ */
+ public static encodeDutchAuctionAssetData(
+ assetData: string,
+ beginTimeSeconds: BigNumber,
+ beginAmount: BigNumber,
+ ): string {
+ const assetDataBuffer = ethUtil.toBuffer(assetData);
+ const abiEncodedAuctionData = (ethAbi as any).rawEncode(
+ ['uint256', 'uint256'],
+ [beginTimeSeconds.toString(), beginAmount.toString()],
+ );
+ const abiEncodedAuctionDataBuffer = ethUtil.toBuffer(abiEncodedAuctionData);
+ const dutchAuctionDataBuffer = Buffer.concat([assetDataBuffer, abiEncodedAuctionDataBuffer]);
+ const dutchAuctionData = ethUtil.bufferToHex(dutchAuctionDataBuffer);
+ return dutchAuctionData;
+ }
+ /**
+ * Dutch auction details are encoded with the asset data for a 0x order. This function decodes a hex
+ * encoded assetData string, containing information both about the asset being traded and the
+ * dutch auction.
+ * @param dutchAuctionData Hex encoded assetData string for the asset being auctioned.
+ * @return An object containing the auction asset, auction begin time and auction begin amount.
+ */
+ public static decodeDutchAuctionData(dutchAuctionData: string): DutchAuctionData {
+ const dutchAuctionDataBuffer = ethUtil.toBuffer(dutchAuctionData);
+ // Decode asset data
+ const dutchAuctionDataLengthInBytes = 64;
+ const assetDataBuffer = dutchAuctionDataBuffer.slice(
+ 0,
+ dutchAuctionDataBuffer.byteLength - dutchAuctionDataLengthInBytes,
+ );
+ const assetDataHex = ethUtil.bufferToHex(assetDataBuffer);
+ const assetData = assetDataUtils.decodeAssetDataOrThrow(assetDataHex);
+ // Decode auction details
+ const dutchAuctionDetailsBuffer = dutchAuctionDataBuffer.slice(
+ dutchAuctionDataBuffer.byteLength - dutchAuctionDataLengthInBytes,
+ );
+ const [beginTimeSecondsAsBN, beginAmountAsBN] = ethAbi.rawDecode(
+ ['uint256', 'uint256'],
+ dutchAuctionDetailsBuffer,
+ );
+ const beginTimeSeconds = new BigNumber(`0x${beginTimeSecondsAsBN.toString()}`);
+ const beginAmount = new BigNumber(`0x${beginAmountAsBN.toString()}`);
+ return {
+ assetData,
+ beginTimeSeconds,
+ beginAmount,
+ };
+ }
+ /**
+ * Instantiate DutchAuctionWrapper
+ * @param web3Wrapper Web3Wrapper instance to use.
+ * @param networkId Desired networkId.
+ * @param address The address of the Dutch Auction contract. If undefined, will
+ * default to the known address corresponding to the networkId.
+ */
+ public constructor(web3Wrapper: Web3Wrapper, networkId: number, address?: string) {
+ super(web3Wrapper, networkId);
+ this.address = _.isUndefined(address) ? _getDefaultContractAddresses(networkId).dutchAuction : address;
+ }
+ /**
+ * Matches the buy and sell orders at an amount given the following: the current block time, the auction
+ * start time and the auction begin amount. The sell order is a an order at the lowest amount
+ * at the end of the auction. Excess from the match is transferred to the seller.
+ * Over time the price moves from beginAmount to endAmount given the current block.timestamp.
+ * @param buyOrder The Buyer's order. This order is for the current expected price of the auction.
+ * @param sellOrder The Seller's order. This order is for the lowest amount (at the end of the auction).
+ * @param takerAddress The user Ethereum address who would like to fill this order. Must be available via the supplied
+ * Provider provided at instantiation.
+ * @return Transaction hash.
+ */
+ public async matchOrdersAsync(
+ buyOrder: SignedOrder,
+ sellOrder: SignedOrder,
+ takerAddress: string,
+ orderTransactionOpts: OrderTransactionOpts = { shouldValidate: true },
+ ): Promise<string> {
+ // type assertions
+ assert.doesConformToSchema('buyOrder', buyOrder, schemas.signedOrderSchema);
+ assert.doesConformToSchema('sellOrder', sellOrder, schemas.signedOrderSchema);
+ await assert.isSenderAddressAsync('takerAddress', takerAddress, this._web3Wrapper);
+ assert.doesConformToSchema('orderTransactionOpts', orderTransactionOpts, orderTxOptsSchema, [txOptsSchema]);
+ const normalizedTakerAddress = takerAddress.toLowerCase();
+ // other assertions
+ if (
+ sellOrder.makerAssetData !== buyOrder.takerAssetData ||
+ sellOrder.takerAssetData !== buyOrder.makerAssetData
+ ) {
+ throw new Error(DutchAuctionWrapperError.AssetDataMismatch);
+ }
+ // get contract
+ const dutchAuctionInstance = await this._getDutchAuctionContractAsync();
+ // validate transaction
+ if (orderTransactionOpts.shouldValidate) {
+ await dutchAuctionInstance.matchOrders.callAsync(
+ buyOrder,
+ sellOrder,
+ buyOrder.signature,
+ sellOrder.signature,
+ {
+ from: normalizedTakerAddress,
+ gas: orderTransactionOpts.gasLimit,
+ gasPrice: orderTransactionOpts.gasPrice,
+ nonce: orderTransactionOpts.nonce,
+ },
+ );
+ }
+ // send transaction
+ const txHash = await dutchAuctionInstance.matchOrders.sendTransactionAsync(
+ buyOrder,
+ sellOrder,
+ buyOrder.signature,
+ sellOrder.signature,
+ {
+ from: normalizedTakerAddress,
+ gas: orderTransactionOpts.gasLimit,
+ gasPrice: orderTransactionOpts.gasPrice,
+ nonce: orderTransactionOpts.nonce,
+ },
+ );
+ return txHash;
+ }
+ /**
+ * Fetches the Auction Details for the given order
+ * @param sellOrder The Seller's order. This order is for the lowest amount (at the end of the auction).
+ * @return The dutch auction details.
+ */
+ public async getAuctionDetailsAsync(sellOrder: SignedOrder): Promise<DutchAuctionDetails> {
+ // type assertions
+ assert.doesConformToSchema('sellOrder', sellOrder, schemas.signedOrderSchema);
+ // get contract
+ const dutchAuctionInstance = await this._getDutchAuctionContractAsync();
+ // call contract
+ const auctionDetails = await dutchAuctionInstance.getAuctionDetails.callAsync(sellOrder);
+ return auctionDetails;
+ }
+ private async _getDutchAuctionContractAsync(): Promise<DutchAuctionContract> {
+ if (!_.isUndefined(this._dutchAuctionContractIfExists)) {
+ return this._dutchAuctionContractIfExists;
+ }
+ const contractInstance = new DutchAuctionContract(
+ this.abi,
+ this.address,
+ this._web3Wrapper.getProvider(),
+ this._web3Wrapper.getContractDefaults(),
+ );
+ this._dutchAuctionContractIfExists = contractInstance;
+ return this._dutchAuctionContractIfExists;
+ }
+}
diff --git a/packages/contract-wrappers/src/fetchers/asset_balance_and_proxy_allowance_fetcher.ts b/packages/contract-wrappers/src/fetchers/asset_balance_and_proxy_allowance_fetcher.ts
index d10cffe57..1ff130a48 100644
--- a/packages/contract-wrappers/src/fetchers/asset_balance_and_proxy_allowance_fetcher.ts
+++ b/packages/contract-wrappers/src/fetchers/asset_balance_and_proxy_allowance_fetcher.ts
@@ -1,8 +1,7 @@
-// tslint:disable:no-unnecessary-type-assertion
import { AbstractBalanceAndProxyAllowanceFetcher, assetDataUtils } from '@0x/order-utils';
-import { AssetProxyId, ERC20AssetData, ERC721AssetData } from '@0x/types';
import { BigNumber } from '@0x/utils';
import { BlockParamLiteral } from 'ethereum-types';
+import * as _ from 'lodash';
import { ERC20TokenWrapper } from '../contract_wrappers/erc20_token_wrapper';
import { ERC721TokenWrapper } from '../contract_wrappers/erc721_token_wrapper';
@@ -18,42 +17,45 @@ export class AssetBalanceAndProxyAllowanceFetcher implements AbstractBalanceAndP
}
public async getBalanceAsync(assetData: string, userAddress: string): Promise<BigNumber> {
const decodedAssetData = assetDataUtils.decodeAssetDataOrThrow(assetData);
- if (decodedAssetData.assetProxyId === AssetProxyId.ERC20) {
- const decodedERC20AssetData = decodedAssetData as ERC20AssetData;
- const balance = await this._erc20Token.getBalanceAsync(decodedERC20AssetData.tokenAddress, userAddress, {
+ let balance: BigNumber | undefined;
+ if (assetDataUtils.isERC20AssetData(decodedAssetData)) {
+ balance = await this._erc20Token.getBalanceAsync(decodedAssetData.tokenAddress, userAddress, {
defaultBlock: this._stateLayer,
});
- return balance;
- } else {
- const decodedERC721AssetData = decodedAssetData as ERC721AssetData;
+ } else if (assetDataUtils.isERC721AssetData(decodedAssetData)) {
const tokenOwner = await this._erc721Token.getOwnerOfAsync(
- decodedERC721AssetData.tokenAddress,
- decodedERC721AssetData.tokenId,
+ decodedAssetData.tokenAddress,
+ decodedAssetData.tokenId,
{
defaultBlock: this._stateLayer,
},
);
- const balance = tokenOwner === userAddress ? new BigNumber(1) : new BigNumber(0);
- return balance;
+ balance = tokenOwner === userAddress ? new BigNumber(1) : new BigNumber(0);
+ } else if (assetDataUtils.isMultiAssetData(decodedAssetData)) {
+ // The `balance` for MultiAssetData is the total units of the entire `assetData` that are held by the `userAddress`.
+ for (const [index, nestedAssetDataElement] of decodedAssetData.nestedAssetData.entries()) {
+ const nestedAmountElement = decodedAssetData.amounts[index];
+ const nestedAssetBalance = (await this.getBalanceAsync(
+ nestedAssetDataElement,
+ userAddress,
+ )).dividedToIntegerBy(nestedAmountElement);
+ if (_.isUndefined(balance) || nestedAssetBalance.lessThan(balance)) {
+ balance = nestedAssetBalance;
+ }
+ }
}
+ return balance as BigNumber;
}
public async getProxyAllowanceAsync(assetData: string, userAddress: string): Promise<BigNumber> {
const decodedAssetData = assetDataUtils.decodeAssetDataOrThrow(assetData);
- if (decodedAssetData.assetProxyId === AssetProxyId.ERC20) {
- const decodedERC20AssetData = decodedAssetData as ERC20AssetData;
- const proxyAllowance = await this._erc20Token.getProxyAllowanceAsync(
- decodedERC20AssetData.tokenAddress,
- userAddress,
- {
- defaultBlock: this._stateLayer,
- },
- );
- return proxyAllowance;
- } else {
- const decodedERC721AssetData = decodedAssetData as ERC721AssetData;
-
+ let proxyAllowance: BigNumber | undefined;
+ if (assetDataUtils.isERC20AssetData(decodedAssetData)) {
+ proxyAllowance = await this._erc20Token.getProxyAllowanceAsync(decodedAssetData.tokenAddress, userAddress, {
+ defaultBlock: this._stateLayer,
+ });
+ } else if (assetDataUtils.isERC721AssetData(decodedAssetData)) {
const isApprovedForAll = await this._erc721Token.isProxyApprovedForAllAsync(
- decodedERC721AssetData.tokenAddress,
+ decodedAssetData.tokenAddress,
userAddress,
{
defaultBlock: this._stateLayer,
@@ -63,15 +65,27 @@ export class AssetBalanceAndProxyAllowanceFetcher implements AbstractBalanceAndP
return new BigNumber(this._erc20Token.UNLIMITED_ALLOWANCE_IN_BASE_UNITS);
} else {
const isApproved = await this._erc721Token.isProxyApprovedAsync(
- decodedERC721AssetData.tokenAddress,
- decodedERC721AssetData.tokenId,
+ decodedAssetData.tokenAddress,
+ decodedAssetData.tokenId,
{
defaultBlock: this._stateLayer,
},
);
- const proxyAllowance = isApproved ? new BigNumber(1) : new BigNumber(0);
- return proxyAllowance;
+ proxyAllowance = isApproved ? new BigNumber(1) : new BigNumber(0);
+ }
+ } else if (assetDataUtils.isMultiAssetData(decodedAssetData)) {
+ // The `proxyAllowance` for MultiAssetData is the total units of the entire `assetData` that the proxies have been approved to spend by the `userAddress`.
+ for (const [index, nestedAssetDataElement] of decodedAssetData.nestedAssetData.entries()) {
+ const nestedAmountElement = decodedAssetData.amounts[index];
+ const nestedAssetAllowance = (await this.getProxyAllowanceAsync(
+ nestedAssetDataElement,
+ userAddress,
+ )).dividedToIntegerBy(nestedAmountElement);
+ if (_.isUndefined(proxyAllowance) || nestedAssetAllowance.lessThan(proxyAllowance)) {
+ proxyAllowance = nestedAssetAllowance;
+ }
}
}
+ return proxyAllowance as BigNumber;
}
}
diff --git a/packages/contract-wrappers/src/index.ts b/packages/contract-wrappers/src/index.ts
index d66ff5c9c..69bbe3c91 100644
--- a/packages/contract-wrappers/src/index.ts
+++ b/packages/contract-wrappers/src/index.ts
@@ -34,6 +34,7 @@ export { ERC20ProxyWrapper } from './contract_wrappers/erc20_proxy_wrapper';
export { ERC721ProxyWrapper } from './contract_wrappers/erc721_proxy_wrapper';
export { ForwarderWrapper } from './contract_wrappers/forwarder_wrapper';
export { OrderValidatorWrapper } from './contract_wrappers/order_validator_wrapper';
+export { DutchAuctionWrapper } from './contract_wrappers/dutch_auction_wrapper';
export { TransactionEncoder } from './utils/transaction_encoder';
@@ -54,9 +55,21 @@ export {
OrderAndTraderInfo,
TraderInfo,
ValidateOrderFillableOpts,
+ DutchAuctionData,
} from './types';
-export { Order, SignedOrder, AssetProxyId } from '@0x/types';
+export {
+ AssetData,
+ ERC20AssetData,
+ ERC721AssetData,
+ SingleAssetData,
+ MultiAssetData,
+ MultiAssetDataWithRecursiveDecoding,
+ DutchAuctionDetails,
+ Order,
+ SignedOrder,
+ AssetProxyId,
+} from '@0x/types';
export {
BlockParamLiteral,
diff --git a/packages/contract-wrappers/src/types.ts b/packages/contract-wrappers/src/types.ts
index 14d4649ae..945ca88cd 100644
--- a/packages/contract-wrappers/src/types.ts
+++ b/packages/contract-wrappers/src/types.ts
@@ -9,7 +9,7 @@ import {
WETH9Events,
} from '@0x/abi-gen-wrappers';
import { ContractAddresses } from '@0x/contract-addresses';
-import { OrderState, SignedOrder } from '@0x/types';
+import { AssetData, OrderState, SignedOrder } from '@0x/types';
import { BigNumber } from '@0x/utils';
import { BlockParam, ContractEventArg, DecodedLogArgs, LogEntryEvent, LogWithDecodedArgs } from 'ethereum-types';
@@ -206,3 +206,13 @@ export interface BalanceAndAllowance {
balance: BigNumber;
allowance: BigNumber;
}
+
+export enum DutchAuctionWrapperError {
+ AssetDataMismatch = 'ASSET_DATA_MISMATCH',
+}
+
+export interface DutchAuctionData {
+ assetData: AssetData;
+ beginTimeSeconds: BigNumber;
+ beginAmount: BigNumber;
+}
diff --git a/packages/contract-wrappers/src/utils/assert.ts b/packages/contract-wrappers/src/utils/assert.ts
index 3f02ed052..d30c6b29c 100644
--- a/packages/contract-wrappers/src/utils/assert.ts
+++ b/packages/contract-wrappers/src/utils/assert.ts
@@ -70,7 +70,7 @@ export const assert = {
/*
* Asserts that all the orders have the same value for the provided propertyName
* If the value parameter is provided, this asserts that all orders have the prope
- */
+ */
ordersHaveAtMostOneUniqueValueForProperty(orders: Order[], propertyName: string, value?: any): void {
const allValues = _.map(orders, order => _.get(order, propertyName));
sharedAssert.hasAtMostOneUniqueValue(
diff --git a/packages/contract-wrappers/test/dutch_auction_wrapper_test.ts b/packages/contract-wrappers/test/dutch_auction_wrapper_test.ts
new file mode 100644
index 000000000..d7a6ca015
--- /dev/null
+++ b/packages/contract-wrappers/test/dutch_auction_wrapper_test.ts
@@ -0,0 +1,128 @@
+import { expectTransactionFailedAsync, getLatestBlockTimestampAsync } from '@0x/contracts-test-utils';
+import { BlockchainLifecycle } from '@0x/dev-utils';
+import { assetDataUtils } from '@0x/order-utils';
+import { RevertReason, SignedOrder } from '@0x/types';
+import { BigNumber } from '@0x/utils';
+import * as chai from 'chai';
+import 'mocha';
+
+import { ContractWrappers } from '../src';
+
+import { chaiSetup } from './utils/chai_setup';
+import { constants } from './utils/constants';
+import { DutchAuctionUtils } from './utils/dutch_auction_utils';
+import { migrateOnceAsync } from './utils/migrate';
+import { tokenUtils } from './utils/token_utils';
+import { provider, web3Wrapper } from './utils/web3_wrapper';
+
+chaiSetup.configure();
+const expect = chai.expect;
+const blockchainLifecycle = new BlockchainLifecycle(web3Wrapper);
+
+// tslint:disable:custom-no-magic-numbers
+describe('DutchAuctionWrapper', () => {
+ const makerAssetAmount = new BigNumber(5);
+ const auctionEndTakerAmount = new BigNumber(10);
+ const auctionBeginTakerAmount = auctionEndTakerAmount.times(2);
+ const tenMinutesInSeconds = 10 * 60;
+ let contractWrappers: ContractWrappers;
+ let exchangeContractAddress: string;
+ let userAddresses: string[];
+ let makerAddress: string;
+ let takerAddress: string;
+ let makerTokenAddress: string;
+ let takerTokenAddress: string;
+ let buyOrder: SignedOrder;
+ let sellOrder: SignedOrder;
+ let makerTokenAssetData: string;
+ let takerTokenAssetData: string;
+ let auctionBeginTimeSeconds: BigNumber;
+ let auctionEndTimeSeconds: BigNumber;
+ before(async () => {
+ // setup contract wrappers & addresses
+ const contractAddresses = await migrateOnceAsync();
+ await blockchainLifecycle.startAsync();
+ const config = {
+ networkId: constants.TESTRPC_NETWORK_ID,
+ contractAddresses,
+ blockPollingIntervalMs: 10,
+ };
+ contractWrappers = new ContractWrappers(provider, config);
+ exchangeContractAddress = contractWrappers.exchange.address;
+ userAddresses = await web3Wrapper.getAvailableAddressesAsync();
+ [, makerAddress, takerAddress] = userAddresses;
+ [makerTokenAddress, takerTokenAddress] = tokenUtils.getDummyERC20TokenAddresses();
+ // construct asset data for tokens being swapped
+ [makerTokenAssetData, takerTokenAssetData] = [
+ assetDataUtils.encodeERC20AssetData(makerTokenAddress),
+ assetDataUtils.encodeERC20AssetData(takerTokenAddress),
+ ];
+ // setup auction details in maker asset data
+ const currentBlockTimestamp: number = await getLatestBlockTimestampAsync();
+ auctionBeginTimeSeconds = new BigNumber(currentBlockTimestamp - tenMinutesInSeconds);
+ auctionEndTimeSeconds = new BigNumber(currentBlockTimestamp + tenMinutesInSeconds);
+ // create auction orders
+ const coinbase = userAddresses[0];
+ const dutchAuctionUtils = new DutchAuctionUtils(
+ web3Wrapper,
+ coinbase,
+ exchangeContractAddress,
+ contractWrappers.erc20Proxy.address,
+ );
+ sellOrder = await dutchAuctionUtils.createSignedSellOrderAsync(
+ auctionBeginTimeSeconds,
+ auctionEndTimeSeconds,
+ auctionBeginTakerAmount,
+ auctionEndTakerAmount,
+ makerAssetAmount,
+ makerTokenAssetData,
+ takerTokenAssetData,
+ makerAddress,
+ constants.NULL_ADDRESS,
+ );
+ buyOrder = await dutchAuctionUtils.createSignedBuyOrderAsync(sellOrder, takerAddress);
+ });
+ after(async () => {
+ await blockchainLifecycle.revertAsync();
+ });
+ beforeEach(async () => {
+ await blockchainLifecycle.startAsync();
+ });
+ afterEach(async () => {
+ await blockchainLifecycle.revertAsync();
+ });
+ describe('#matchOrdersAsync', () => {
+ it('should match two orders', async () => {
+ const txHash = await contractWrappers.dutchAuction.matchOrdersAsync(buyOrder, sellOrder, takerAddress);
+ await web3Wrapper.awaitTransactionSuccessAsync(txHash, constants.AWAIT_TRANSACTION_MINED_MS);
+ });
+ it('should throw when invalid transaction and shouldValidate is true', async () => {
+ // request match with bad buy/sell orders
+ const badSellOrder = buyOrder;
+ const badBuyOrder = sellOrder;
+ return expectTransactionFailedAsync(
+ contractWrappers.dutchAuction.matchOrdersAsync(badBuyOrder, badSellOrder, takerAddress, {
+ shouldValidate: true,
+ }),
+ RevertReason.InvalidAssetData,
+ );
+ });
+ });
+
+ describe('#getAuctionDetailsAsync', () => {
+ it('should get auction details', async () => {
+ // get auction details
+ const auctionDetails = await contractWrappers.dutchAuction.getAuctionDetailsAsync(sellOrder);
+ // run some basic sanity checks on the return value
+ expect(auctionDetails.beginTimeSeconds, 'auctionDetails.beginTimeSeconds').to.be.bignumber.equal(
+ auctionBeginTimeSeconds,
+ );
+ expect(auctionDetails.beginAmount, 'auctionDetails.beginAmount').to.be.bignumber.equal(
+ auctionBeginTakerAmount,
+ );
+ expect(auctionDetails.endTimeSeconds, 'auctionDetails.endTimeSeconds').to.be.bignumber.equal(
+ auctionEndTimeSeconds,
+ );
+ });
+ });
+});
diff --git a/packages/contract-wrappers/test/utils/dutch_auction_utils.ts b/packages/contract-wrappers/test/utils/dutch_auction_utils.ts
new file mode 100644
index 000000000..8e2aef217
--- /dev/null
+++ b/packages/contract-wrappers/test/utils/dutch_auction_utils.ts
@@ -0,0 +1,153 @@
+import { DummyERC20TokenContract } from '@0x/abi-gen-wrappers';
+import * as artifacts from '@0x/contract-artifacts';
+import { assetDataUtils } from '@0x/order-utils';
+import { orderFactory } from '@0x/order-utils/lib/src/order_factory';
+import { SignedOrder } from '@0x/types';
+import { BigNumber } from '@0x/utils';
+import { Web3Wrapper } from '@0x/web3-wrapper';
+
+import { DutchAuctionWrapper } from '../../src/contract_wrappers/dutch_auction_wrapper';
+
+import { constants } from './constants';
+
+export class DutchAuctionUtils {
+ private readonly _web3Wrapper: Web3Wrapper;
+ private readonly _coinbase: string;
+ private readonly _exchangeAddress: string;
+ private readonly _erc20ProxyAddress: string;
+
+ constructor(web3Wrapper: Web3Wrapper, coinbase: string, exchangeAddress: string, erc20ProxyAddress: string) {
+ this._web3Wrapper = web3Wrapper;
+ this._coinbase = coinbase;
+ this._exchangeAddress = exchangeAddress;
+ this._erc20ProxyAddress = erc20ProxyAddress;
+ }
+ public async createSignedSellOrderAsync(
+ auctionBeginTimeSections: BigNumber,
+ acutionEndTimeSeconds: BigNumber,
+ auctionBeginTakerAssetAmount: BigNumber,
+ auctionEndTakerAssetAmount: BigNumber,
+ makerAssetAmount: BigNumber,
+ makerAssetData: string,
+ takerAssetData: string,
+ makerAddress: string,
+ takerAddress: string,
+ senderAddress?: string,
+ makerFee?: BigNumber,
+ takerFee?: BigNumber,
+ feeRecipientAddress?: string,
+ ): Promise<SignedOrder> {
+ // Notes on sell order:
+ // - The `takerAssetAmount` is set to the `auctionEndTakerAssetAmount`, which is the lowest amount the
+ // the seller can expect to receive
+ // - The `makerAssetData` is overloaded to include the auction begin time and begin taker asset amount
+ const makerAssetDataWithAuctionDetails = DutchAuctionWrapper.encodeDutchAuctionAssetData(
+ makerAssetData,
+ auctionBeginTimeSections,
+ auctionBeginTakerAssetAmount,
+ );
+ const signedOrder = await orderFactory.createSignedOrderAsync(
+ this._web3Wrapper.getProvider(),
+ makerAddress,
+ makerAssetAmount,
+ makerAssetDataWithAuctionDetails,
+ auctionEndTakerAssetAmount,
+ takerAssetData,
+ this._exchangeAddress,
+ {
+ takerAddress,
+ senderAddress,
+ makerFee,
+ takerFee,
+ feeRecipientAddress,
+ expirationTimeSeconds: acutionEndTimeSeconds,
+ },
+ );
+ const erc20AssetData = assetDataUtils.decodeERC20AssetData(makerAssetData);
+ await this._increaseERC20BalanceAndAllowanceAsync(erc20AssetData.tokenAddress, makerAddress, makerAssetAmount);
+ return signedOrder;
+ }
+ public async createSignedBuyOrderAsync(
+ sellOrder: SignedOrder,
+ buyerAddress: string,
+ senderAddress?: string,
+ makerFee?: BigNumber,
+ takerFee?: BigNumber,
+ feeRecipientAddress?: string,
+ expirationTimeSeconds?: BigNumber,
+ ): Promise<SignedOrder> {
+ const dutchAuctionData = DutchAuctionWrapper.decodeDutchAuctionData(sellOrder.makerAssetData);
+ // Notes on buy order:
+ // - The `makerAssetAmount` is set to `dutchAuctionData.beginAmount`, which is
+ // the highest amount the buyer would have to pay out at any point during the auction.
+ // - The `takerAssetAmount` is set to the seller's `makerAssetAmount`, as the buyer
+ // receives the entire amount being sold by the seller.
+ // - The `makerAssetData`/`takerAssetData` are reversed from the sell order
+ const signedOrder = await orderFactory.createSignedOrderAsync(
+ this._web3Wrapper.getProvider(),
+ buyerAddress,
+ dutchAuctionData.beginAmount,
+ sellOrder.takerAssetData,
+ sellOrder.makerAssetAmount,
+ sellOrder.makerAssetData,
+ sellOrder.exchangeAddress,
+ {
+ senderAddress,
+ makerFee,
+ takerFee,
+ feeRecipientAddress,
+ expirationTimeSeconds,
+ },
+ );
+ const buyerERC20AssetData = assetDataUtils.decodeERC20AssetData(sellOrder.takerAssetData);
+ await this._increaseERC20BalanceAndAllowanceAsync(
+ buyerERC20AssetData.tokenAddress,
+ buyerAddress,
+ dutchAuctionData.beginAmount,
+ );
+ return signedOrder;
+ }
+ private async _increaseERC20BalanceAndAllowanceAsync(
+ tokenAddress: string,
+ address: string,
+ amount: BigNumber,
+ ): Promise<void> {
+ if (amount.isZero() || address === constants.NULL_ADDRESS) {
+ return; // noop
+ }
+ await Promise.all([
+ this._increaseERC20BalanceAsync(tokenAddress, address, amount),
+ this._increaseERC20AllowanceAsync(tokenAddress, address, amount),
+ ]);
+ }
+ private async _increaseERC20BalanceAsync(tokenAddress: string, address: string, amount: BigNumber): Promise<void> {
+ const erc20Token = new DummyERC20TokenContract(
+ artifacts.DummyERC20Token.compilerOutput.abi,
+ tokenAddress,
+ this._web3Wrapper.getProvider(),
+ this._web3Wrapper.getContractDefaults(),
+ );
+ const txHash = await erc20Token.transfer.sendTransactionAsync(address, amount, {
+ from: this._coinbase,
+ });
+ await this._web3Wrapper.awaitTransactionSuccessAsync(txHash, constants.AWAIT_TRANSACTION_MINED_MS);
+ }
+ private async _increaseERC20AllowanceAsync(
+ tokenAddress: string,
+ address: string,
+ amount: BigNumber,
+ ): Promise<void> {
+ const erc20Token = new DummyERC20TokenContract(
+ artifacts.DummyERC20Token.compilerOutput.abi,
+ tokenAddress,
+ this._web3Wrapper.getProvider(),
+ this._web3Wrapper.getContractDefaults(),
+ );
+ const oldMakerAllowance = await erc20Token.allowance.callAsync(address, this._erc20ProxyAddress);
+ const newMakerAllowance = oldMakerAllowance.plus(amount);
+ const txHash = await erc20Token.approve.sendTransactionAsync(this._erc20ProxyAddress, newMakerAllowance, {
+ from: address,
+ });
+ await this._web3Wrapper.awaitTransactionSuccessAsync(txHash, constants.AWAIT_TRANSACTION_MINED_MS);
+ }
+}