Merge pull request #89 from 0xProject/proxy

Add zeroEx.proxy

4 files changed, 26 insertions, 9 deletions

diff --git a/src/0x.ts b/src/0x.ts
index b56a2f949..938e61805 100644
--- a/src/0x.ts
+++ b/src/0x.ts
@@ -52,7 +52,11 @@ export class ZeroEx {
      * wrapped ETH ERC20 token smart contract.
      */
     public etherToken: EtherTokenWrapper;
-    private _proxyWrapper: ProxyWrapper;
+    /**
+     * An instance of the ProxyWrapper class containing methods for interacting with the
+     * proxy smart contract.
+     */
+    public proxy: ProxyWrapper;
     private _web3Wrapper: Web3Wrapper;
     /**
      * Verifies that the elliptic curve signature `signature` was generated
@@ -150,8 +154,8 @@ export class ZeroEx {
     constructor(provider: Web3Provider) {
         this._web3Wrapper = new Web3Wrapper(provider);
         this.token = new TokenWrapper(this._web3Wrapper);
-        this._proxyWrapper = new ProxyWrapper(this._web3Wrapper);
-        this.exchange = new ExchangeWrapper(this._web3Wrapper, this.token, this._proxyWrapper);
+        this.proxy = new ProxyWrapper(this._web3Wrapper);
+        this.exchange = new ExchangeWrapper(this._web3Wrapper, this.token, this.proxy);
         this.tokenRegistry = new TokenRegistryWrapper(this._web3Wrapper);
         this.etherToken = new EtherTokenWrapper(this._web3Wrapper, this.token);
     }
@@ -165,7 +169,7 @@ export class ZeroEx {
         await this.exchange.invalidateContractInstancesAsync();
         this.tokenRegistry.invalidateContractInstance();
         this.token.invalidateContractInstances();
-        this._proxyWrapper.invalidateContractInstance();
+        this.proxy.invalidateContractInstance();
     }
     /**
      * Get user Ethereum addresses available through the supplied web3 instance available for sending transactions.
diff --git a/src/contract_wrappers/exchange_wrapper.ts b/src/contract_wrappers/exchange_wrapper.ts
index 57a116aea..6726f3eac 100644
--- a/src/contract_wrappers/exchange_wrapper.ts
+++ b/src/contract_wrappers/exchange_wrapper.ts
@@ -99,7 +99,7 @@ export class ExchangeWrapper extends ContractWrapper {
      * subtracting the unavailable amount from the total order takerAmount.
      * @param   orderHash               The hex encoded orderHash for which you would like to retrieve the
      *                                  unavailable takerAmount.
-     * @param   exchangeContractAddress The hex encoded address of the Exchange contract to use.
+     * @param   exchangeContractAddress The hex encoded address of the Exchange contract to call.
      * @return  The amount of the order (in taker tokens) that has either been filled or canceled.
      */
     public async getUnavailableTakerAmountAsync(orderHash: string,
@@ -115,7 +115,7 @@ export class ExchangeWrapper extends ContractWrapper {
     /**
      * Retrieve the takerAmount of an order that has already been filled.
      * @param   orderHash    The hex encoded orderHash for which you would like to retrieve the filled takerAmount.
-     * @param   exchangeContractAddress The hex encoded address of the Exchange contract to use.
+     * @param   exchangeContractAddress The hex encoded address of the Exchange contract to call.
      * @return  The amount of the order (in taker tokens) that has already been filled.
      */
     public async getFilledTakerAmountAsync(orderHash: string,
@@ -132,7 +132,7 @@ export class ExchangeWrapper extends ContractWrapper {
      * Retrieve the takerAmount of an order that has been cancelled.
      * @param   orderHash    The hex encoded orderHash for which you would like to retrieve the
      *                       cancelled takerAmount.
-     * @param   exchangeContractAddress The hex encoded address of the Exchange contract to use.
+     * @param   exchangeContractAddress The hex encoded address of the Exchange contract to call.
      * @return  The amount of the order (in taker tokens) that has been cancelled.
      */
     public async getCanceledTakerAmountAsync(orderHash: string,
@@ -578,7 +578,7 @@ export class ExchangeWrapper extends ContractWrapper {
      * @param   subscriptionOpts        Subscriptions options that let you configure the subscription.
      * @param   indexFilterValues       An object where the keys are indexed args returned by the event and
      *                                  the value is the value you are interested in. E.g `{maker: aUserAddressHex}`
-     * @param   exchangeContractAddress The hex encoded address of the Exchange contract to use.
+     * @param   exchangeContractAddress The hex encoded address of the Exchange contract to call.
      * @return                      ContractEventEmitter object
      */
     public async subscribeAsync(eventName: ExchangeEvents, subscriptionOpts: SubscriptionOpts,
diff --git a/src/contract_wrappers/proxy_wrapper.ts b/src/contract_wrappers/proxy_wrapper.ts
index 862bce131..bdf163f35 100644
--- a/src/contract_wrappers/proxy_wrapper.ts
+++ b/src/contract_wrappers/proxy_wrapper.ts
@@ -14,7 +14,7 @@ export class ProxyWrapper extends ContractWrapper {
     }
     /**
      * Check if the Exchange contract address is authorized by the Proxy contract.
-     * @param   exchangeContractAddress     The hex encoded address of the Exchange contract to use.
+     * @param   exchangeContractAddress     The hex encoded address of the Exchange contract to call.
      * @return  Whether the exchangeContractAddress is authorized.
      */
     public async isAuthorizedAsync(exchangeContractAddress: string): Promise<boolean> {
@@ -22,6 +22,16 @@ export class ProxyWrapper extends ContractWrapper {
         const isAuthorized = await proxyContractInstance.authorized.call(exchangeContractAddress);
         return isAuthorized;
     }
+    /**
+     * Get the list of all Exchange contract addresses authorized by the Proxy contract.
+     * @param   exchangeContractAddress     The hex encoded address of the Exchange contract to call.
+     * @return  The list of authorized addresses.
+     */
+    public async getAuthorizedAddressesAsync(exchangeContractAddress: string): Promise<string[]> {
+        const proxyContractInstance = await this._getProxyContractAsync();
+        const authorizedAddresses = await proxyContractInstance.getAuthorizedAddresses.call();
+        return authorizedAddresses;
+    }
     private async _getProxyContractAsync(): Promise<ProxyContract> {
         if (!_.isUndefined(this._proxyContractIfExists)) {
             return this._proxyContractIfExists;
diff --git a/src/types.ts b/src/types.ts
index b7ee9c946..8047f4536 100644
--- a/src/types.ts
+++ b/src/types.ts
@@ -149,6 +149,9 @@ export interface EtherTokenContract extends ContractInstance {
 }
 
 export interface ProxyContract extends ContractInstance {
+    getAuthorizedAddresses: {
+        call: () => Promise<string[]>;
+    };
     authorized: {
         call: (address: string) => Promise<boolean>;
     };