diff options
Diffstat (limited to 'packages/web3-wrapper/src')
| -rw-r--r-- | packages/web3-wrapper/src/index.ts | 326 |
1 files changed, 163 insertions, 163 deletions
diff --git a/packages/web3-wrapper/src/index.ts b/packages/web3-wrapper/src/index.ts index 859333448..c4826f2be 100644 --- a/packages/web3-wrapper/src/index.ts +++ b/packages/web3-wrapper/src/index.ts @@ -4,170 +4,170 @@ import * as _ from 'lodash'; import * as Web3 from 'web3'; interface RawLogEntry { - logIndex: string | null; - transactionIndex: string | null; - transactionHash: string; - blockHash: string | null; - blockNumber: string | null; - address: string; - data: string; - topics: string[]; + logIndex: string | null; + transactionIndex: string | null; + transactionHash: string; + blockHash: string | null; + blockNumber: string | null; + address: string; + data: string; + topics: string[]; } export class Web3Wrapper { - private _web3: Web3; - private _defaults: Partial<TxData>; - private _jsonRpcRequestId: number; - constructor(provider: Web3.Provider, 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._web3.setProvider(provider); - this._defaults = defaults || {}; - this._jsonRpcRequestId = 0; - } - public getContractDefaults(): Partial<TxData> { - return this._defaults; - } - public setProvider(provider: Web3.Provider) { - 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 getNetworkIdAsync(): Promise<number> { - const networkIdStr = await promisify<string>(this._web3.version.getNetwork)(); - const networkId = _.parseInt(networkIdStr); - return networkId; - } - 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 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); - // Rewrap in a new BigNumber - 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; - } - public getContractFromAbi(abi: Web3.ContractAbi): Web3.Contract<any> { - 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 }); - return gas; - } - 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; - } + private _web3: Web3; + private _defaults: Partial<TxData>; + private _jsonRpcRequestId: number; + constructor(provider: Web3.Provider, 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._web3.setProvider(provider); + this._defaults = defaults || {}; + this._jsonRpcRequestId = 0; + } + public getContractDefaults(): Partial<TxData> { + return this._defaults; + } + public setProvider(provider: Web3.Provider) { + 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 getNetworkIdAsync(): Promise<number> { + const networkIdStr = await promisify<string>(this._web3.version.getNetwork)(); + const networkId = _.parseInt(networkIdStr); + return networkId; + } + 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 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); + // Rewrap in a new BigNumber + 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; + } + public getContractFromAbi(abi: Web3.ContractAbi): Web3.Contract<any> { + 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 }); + return gas; + } + 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; + } } |