Merge branch 'master' of github.com:0xProject/0x-monorepo

* 'master' of github.com:0xProject/0x-monorepo: (171 commits)
  Fix bugs in postpublish_utils.js
  Update @0xproject/utils in top-level package.json
  Changelog tweaks
  Publish
  Updated CHANGELOGS
  Fix typo
  Add PR number to changelog entry
  Add changelog update to subproviders package
  Add `numberOfAccounts` param to `LedgerSubprovider` method `getAccountsAsync` and add tests
  Remove unnecessary type assertion
  Fix comments
  Add comments
  Don't need any external packages for 0x connect docs yet
  Instead of adding `@0xproject/types` to tsconfig.json, let's only add it when calling TypeDoc
  Fix styling
  Make prettier ignore postpublish_utils
  Update yarn.lock
  Update yarn.lock
  Update all mentions of the repo name being `0x.js` to `0x-monorepo`
  Add hack comment
  ...

1 files changed, 10 insertions, 8 deletions

diff --git a/packages/web3-wrapper/src/index.ts b/packages/web3-wrapper/src/index.ts
index a2878fc2a..a07805344 100644
--- a/packages/web3-wrapper/src/index.ts
+++ b/packages/web3-wrapper/src/index.ts
@@ -41,7 +41,8 @@ export class Web3Wrapper {
     }
     public async isSenderAddressAvailableAsync(senderAddress: string): Promise<boolean> {
         const addresses = await this.getAvailableAddressesAsync();
-        return _.includes(addresses, senderAddress);
+        const normalizedAddress = senderAddress.toLowerCase();
+        return _.includes(addresses, normalizedAddress);
     }
     public async getNodeVersionAsync(): Promise<string> {
         const nodeVersion = await promisify<string>(this._web3.version.getNode)();
@@ -96,7 +97,8 @@ export class Web3Wrapper {
     }
     public async getAvailableAddressesAsync(): Promise<string[]> {
         const addresses = await promisify<string[]>(this._web3.eth.getAccounts)();
-        return addresses;
+        const normalizedAddresses = _.map(addresses, address => address.toLowerCase());
+        return normalizedAddresses;
     }
     public async getLogsAsync(filter: Web3.FilterObject): Promise<Web3.LogEntry[]> {
         let fromBlock = filter.fromBlock;
@@ -126,14 +128,14 @@ export class Web3Wrapper {
         const web3Contract = this._web3.eth.contract(abi);
         return web3Contract;
     }
-    public getContractInstance(abi: Web3.ContractAbi, address: string): Web3.ContractInstance {
-        const web3ContractInstance = this.getContractFromAbi(abi).at(address);
-        return web3ContractInstance;
-    }
-    public async estimateGasAsync(data: string): Promise<number> {
-        const gas = await promisify<number>(this._web3.eth.estimateGas)({ data });
+    public async estimateGasAsync(txData: Partial<Web3.TxData>): Promise<number> {
+        const gas = await promisify<number>(this._web3.eth.estimateGas)(txData);
         return gas;
     }
+    public async callAsync(callData: Web3.CallData, defaultBlock?: Web3.BlockParam): Promise<string> {
+        const rawCalllResult = await promisify<string>(this._web3.eth.call)(callData, defaultBlock);
+        return rawCalllResult;
+    }
     public async sendTransactionAsync(txData: Web3.TxData): Promise<string> {
         const txHash = await promisify<string>(this._web3.eth.sendTransaction)(txData);
         return txHash;