Refactor web3Wrapper to a separate package

1 files changed, 0 insertions, 202 deletions

diff --git a/packages/0x.js/src/web3_wrapper.ts b/packages/0x.js/src/web3_wrapper.ts
deleted file mode 100644
index 6a6b4e760..000000000
--- a/packages/0x.js/src/web3_wrapper.ts
+++ /dev/null
@@ -1,202 +0,0 @@
-import BigNumber from 'bignumber.js';
-import * as _ from 'lodash';
-import * as Web3 from 'web3';
-
-import {Artifact, ArtifactContractName, TransactionReceipt, TxData, ZeroExError} from './types';
-import {promisify} from './utils/promisify';
-
-interface RawLogEntry {
-    logIndex: string|null;
-    transactionIndex: string|null;
-    transactionHash: string;
-    blockHash: string|null;
-    blockNumber: string|null;
-    address: string;
-    data: string;
-    topics: string[];
-}
-
-const CONTRACT_NAME_TO_NOT_FOUND_ERROR: {[contractName: string]: ZeroExError} = {
-    ZRX: ZeroExError.ZRXContractDoesNotExist,
-    EtherToken: ZeroExError.EtherTokenContractDoesNotExist,
-    Token: ZeroExError.TokenContractDoesNotExist,
-    TokenRegistry: ZeroExError.TokenRegistryContractDoesNotExist,
-    TokenTransferProxy: ZeroExError.TokenTransferProxyContractDoesNotExist,
-    Exchange: ZeroExError.ExchangeContractDoesNotExist,
-};
-
-export class Web3Wrapper {
-    private web3: Web3;
-    private networkId: number;
-    private defaults: Partial<TxData>;
-    private jsonRpcRequestId: number;
-    constructor(provider: Web3.Provider, networkId: number, defaults?: Partial<TxData>) {
-        if (_.isUndefined((provider as any).sendAsync)) {
-            // Web3@1.0 provider doesn't support synchronous http requests,
-            // so it only has an async `send` method, instead of a `send` and `sendAsync` in web3@0.x.x`
-            // We re-assign the send method so that Web3@1.0 providers work with 0x.js
-            (provider as any).sendAsync = (provider as any).send;
-        }
-        this.web3 = new Web3();
-        this.networkId = networkId;
-        this.web3.setProvider(provider);
-        this.defaults = defaults || {};
-        this.jsonRpcRequestId = 0;
-    }
-    public getContractDefaults(): Partial<TxData> {
-        return this.defaults;
-    }
-    public setProvider(provider: Web3.Provider, networkId: number) {
-        this.networkId = networkId;
-        this.web3.setProvider(provider);
-    }
-    public isAddress(address: string): boolean {
-        return this.web3.isAddress(address);
-    }
-    public async isSenderAddressAvailableAsync(senderAddress: string): Promise<boolean> {
-        const addresses = await this.getAvailableAddressesAsync();
-        return _.includes(addresses, senderAddress);
-    }
-    public async getNodeVersionAsync(): Promise<string> {
-        const nodeVersion = await promisify<string>(this.web3.version.getNode)();
-        return nodeVersion;
-    }
-    public async getTransactionReceiptAsync(txHash: string): Promise<TransactionReceipt> {
-        const transactionReceipt = await promisify<TransactionReceipt>(this.web3.eth.getTransactionReceipt)(txHash);
-        if (!_.isNull(transactionReceipt)) {
-            transactionReceipt.status = this.normalizeTxReceiptStatus(transactionReceipt.status);
-        }
-        return transactionReceipt;
-    }
-    public getCurrentProvider(): Web3.Provider {
-        return this.web3.currentProvider;
-    }
-    public getNetworkId(): number {
-        return this.networkId;
-    }
-    public async getContractInstanceFromArtifactAsync(
-        artifact: Artifact, address?: string,
-    ): Promise<Web3.ContractInstance> {
-        let contractAddress: string;
-        if (_.isUndefined(address)) {
-            const networkId = this.getNetworkId();
-            if (_.isUndefined(artifact.networks[networkId])) {
-                throw new Error(ZeroExError.ContractNotDeployedOnNetwork);
-            }
-            contractAddress = artifact.networks[networkId].address.toLowerCase();
-        } else {
-            contractAddress = address;
-        }
-        const doesContractExist = await this.doesContractExistAtAddressAsync(contractAddress);
-        if (!doesContractExist) {
-            throw new Error(CONTRACT_NAME_TO_NOT_FOUND_ERROR[artifact.contract_name]);
-        }
-        const contractInstance = this.getContractInstance(
-            artifact.abi, contractAddress,
-        );
-        return contractInstance;
-    }
-    public toWei(ethAmount: BigNumber): BigNumber {
-        const balanceWei = this.web3.toWei(ethAmount, 'ether');
-        return balanceWei;
-    }
-    public async getBalanceInWeiAsync(owner: string): Promise<BigNumber> {
-        let balanceInWei = await promisify<BigNumber>(this.web3.eth.getBalance)(owner);
-        balanceInWei = new BigNumber(balanceInWei);
-        return balanceInWei;
-    }
-    public async doesContractExistAtAddressAsync(address: string): Promise<boolean> {
-        const code = await promisify<string>(this.web3.eth.getCode)(address);
-        // Regex matches 0x0, 0x00, 0x in order to accommodate poorly implemented clients
-        const codeIsEmpty = /^0x0{0,40}$/i.test(code);
-        return !codeIsEmpty;
-    }
-    public async signTransactionAsync(address: string, message: string): Promise<string> {
-        const signData = await promisify<string>(this.web3.eth.sign)(address, message);
-        return signData;
-    }
-    public async getBlockNumberAsync(): Promise<number> {
-        const blockNumber = await promisify<number>(this.web3.eth.getBlockNumber)();
-        return blockNumber;
-    }
-    public async getBlockAsync(blockParam: string|Web3.BlockParam): Promise<Web3.BlockWithoutTransactionData> {
-        const block = await promisify<Web3.BlockWithoutTransactionData>(this.web3.eth.getBlock)(blockParam);
-        return block;
-    }
-    public async getBlockTimestampAsync(blockParam: string|Web3.BlockParam): Promise<number> {
-        const {timestamp} = await this.getBlockAsync(blockParam);
-        return timestamp;
-    }
-    public async getAvailableAddressesAsync(): Promise<string[]> {
-        const addresses = await promisify<string[]>(this.web3.eth.getAccounts)();
-        return addresses;
-    }
-    public async getLogsAsync(filter: Web3.FilterObject): Promise<Web3.LogEntry[]> {
-        let fromBlock = filter.fromBlock;
-        if (_.isNumber(fromBlock)) {
-            fromBlock = this.web3.toHex(fromBlock);
-        }
-        let toBlock = filter.toBlock;
-        if (_.isNumber(toBlock)) {
-            toBlock = this.web3.toHex(toBlock);
-        }
-        const serializedFilter = {
-            ...filter,
-            fromBlock,
-            toBlock,
-        };
-        const payload = {
-            jsonrpc: '2.0',
-            id: this.jsonRpcRequestId++,
-            method: 'eth_getLogs',
-            params: [serializedFilter],
-        };
-        const rawLogs = await this.sendRawPayloadAsync<RawLogEntry[]>(payload);
-        const formattedLogs = _.map(rawLogs, this.formatLog.bind(this));
-        return formattedLogs;
-    }
-    private getContractInstance(abi: Web3.ContractAbi, address: string): Web3.ContractInstance {
-        const web3ContractInstance = this.web3.eth.contract(abi).at(address);
-        return web3ContractInstance;
-    }
-    private async getNetworkAsync(): Promise<number> {
-        const networkId = await promisify<number>(this.web3.version.getNetwork)();
-        return networkId;
-    }
-    private async sendRawPayloadAsync<A>(payload: Web3.JSONRPCRequestPayload): Promise<A> {
-        const sendAsync = this.web3.currentProvider.sendAsync.bind(this.web3.currentProvider);
-        const response = await promisify<Web3.JSONRPCResponsePayload>(sendAsync)(payload);
-        const result = response.result;
-        return result;
-    }
-    private normalizeTxReceiptStatus(status: undefined|null|string|0|1): null|0|1 {
-        // Transaction status might have four values
-        // undefined - Testrpc and other old clients
-        // null - New clients on old transactions
-        // number - Parity
-        // hex - Geth
-        if (_.isString(status)) {
-            return this.web3.toDecimal(status) as 0|1;
-        } else if (_.isUndefined(status)) {
-            return null;
-        } else {
-            return status;
-        }
-    }
-    private formatLog(rawLog: RawLogEntry): Web3.LogEntry {
-        const formattedLog = {
-            ...rawLog,
-            logIndex: this.hexToDecimal(rawLog.logIndex),
-            blockNumber: this.hexToDecimal(rawLog.blockNumber),
-            transactionIndex: this.hexToDecimal(rawLog.transactionIndex),
-        };
-        return formattedLog;
-    }
-    private hexToDecimal(hex: string|null): number|null {
-        if (_.isNull(hex)) {
-            return null;
-        }
-        const decimal = this.web3.toDecimal(hex);
-        return decimal;
-    }
-}