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-rw-r--r--packages/0x.js/CHANGELOG.md6
-rw-r--r--packages/0x.js/src/contract_wrappers/contract_wrapper.ts2
-rw-r--r--packages/0x.js/src/contract_wrappers/ether_token_wrapper.ts13
-rw-r--r--packages/0x.js/test/ether_token_wrapper_test.ts15
4 files changed, 32 insertions, 4 deletions
diff --git a/packages/0x.js/CHANGELOG.md b/packages/0x.js/CHANGELOG.md
index 5250402c6..06b11cba8 100644
--- a/packages/0x.js/CHANGELOG.md
+++ b/packages/0x.js/CHANGELOG.md
@@ -1,8 +1,12 @@
# CHANGELOG
+## v0.x.0 - _TBD, 2018_
+
+ * Add `zeroEx.etherToken.getContractAddressIfExists` (#350)
+
## v0.31.1 - _February 1, 2018_
- * Fix the bug causing order watcher to throw is makerToken === zrx (#357)
+ * Fix the bug causing order watcher to throw if makerToken === zrx (#357)
## v0.31.0 - _January 30, 2018_
diff --git a/packages/0x.js/src/contract_wrappers/contract_wrapper.ts b/packages/0x.js/src/contract_wrappers/contract_wrapper.ts
index 2d5818618..d913e8d9b 100644
--- a/packages/0x.js/src/contract_wrappers/contract_wrapper.ts
+++ b/packages/0x.js/src/contract_wrappers/contract_wrapper.ts
@@ -32,7 +32,7 @@ const CONTRACT_NAME_TO_NOT_FOUND_ERROR: {
export class ContractWrapper {
protected _web3Wrapper: Web3Wrapper;
- private _networkId: number;
+ protected _networkId: number;
private _abiDecoder?: AbiDecoder;
private _blockAndLogStreamerIfExists?: BlockAndLogStreamer;
private _blockAndLogStreamIntervalIfExists?: NodeJS.Timer;
diff --git a/packages/0x.js/src/contract_wrappers/ether_token_wrapper.ts b/packages/0x.js/src/contract_wrappers/ether_token_wrapper.ts
index cbafcfe94..32c9ae6a9 100644
--- a/packages/0x.js/src/contract_wrappers/ether_token_wrapper.ts
+++ b/packages/0x.js/src/contract_wrappers/ether_token_wrapper.ts
@@ -162,6 +162,19 @@ export class EtherTokenWrapper extends ContractWrapper {
public _unsubscribeAll(): void {
super._unsubscribeAll();
}
+ /**
+ * Retrieves the Ethereum address of the EtherToken contract deployed on the network
+ * that the user-passed web3 provider is connected to. If it's not Kovan, Ropsten, Rinkeby, Mainnet or TestRPC
+ * (networkId: 50), it will return undefined (e.g a private network).
+ * @returns The Ethereum address of the EtherToken contract or undefined.
+ */
+ public getContractAddressIfExists(): string | undefined {
+ const networkSpecificArtifact = artifacts.EtherTokenArtifact.networks[this._networkId];
+ const contractAddressIfExists = _.isUndefined(networkSpecificArtifact)
+ ? undefined
+ : networkSpecificArtifact.address;
+ return contractAddressIfExists;
+ }
private _invalidateContractInstance(): void {
this._unsubscribeAll();
this._etherTokenContractsByAddress = {};
diff --git a/packages/0x.js/test/ether_token_wrapper_test.ts b/packages/0x.js/test/ether_token_wrapper_test.ts
index 9716abab8..da49ec467 100644
--- a/packages/0x.js/test/ether_token_wrapper_test.ts
+++ b/packages/0x.js/test/ether_token_wrapper_test.ts
@@ -17,7 +17,6 @@ import {
ZeroEx,
ZeroExError,
} from '../src';
-import { artifacts } from '../src/artifacts';
import { DoneCallback } from '../src/types';
import { chaiSetup } from './utils/chai_setup';
@@ -60,7 +59,7 @@ describe('EtherTokenWrapper', () => {
tokens = await zeroEx.tokenRegistry.getTokensAsync();
userAddresses = await zeroEx.getAvailableAddressesAsync();
addressWithETH = userAddresses[0];
- wethContractAddress = (zeroEx.etherToken as any)._getContractAddress(artifacts.EtherTokenArtifact);
+ wethContractAddress = zeroEx.etherToken.getContractAddressIfExists() as string;
depositWeiAmount = (zeroEx as any)._web3Wrapper.toWei(new BigNumber(5));
decimalPlaces = 7;
addressWithoutFunds = userAddresses[1];
@@ -71,6 +70,18 @@ describe('EtherTokenWrapper', () => {
afterEach(async () => {
await blockchainLifecycle.revertAsync();
});
+ describe('#getContractAddressIfExists', async () => {
+ it('should return contract address if connected to a known network', () => {
+ const contractAddressIfExists = zeroEx.etherToken.getContractAddressIfExists();
+ expect(contractAddressIfExists).to.not.be.undefined();
+ });
+ it('should return undefined if connected to an unknown network', () => {
+ const UNKNOWN_NETWORK_NETWORK_ID = 10;
+ const unknownNetworkZeroEx = new ZeroEx(web3.currentProvider, { networkId: UNKNOWN_NETWORK_NETWORK_ID });
+ const contractAddressIfExists = unknownNetworkZeroEx.etherToken.getContractAddressIfExists();
+ expect(contractAddressIfExists).to.be.undefined();
+ });
+ });
describe('#depositAsync', () => {
it('should successfully deposit ETH and issue Wrapped ETH tokens', async () => {
const preETHBalance = await (zeroEx as any)._web3Wrapper.getBalanceInWeiAsync(addressWithETH);