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author | Fabio Berger <me@fabioberger.com> | 2017-11-13 11:17:18 +0800 |
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committer | Fabio Berger <me@fabioberger.com> | 2017-11-13 11:17:18 +0800 |
commit | c4ee2d73865a1444c079b9e2836b7630a0adf03e (patch) | |
tree | b9c7794e7022fb189675d914f5fe58dcabd67dec /src/contract.ts | |
parent | a74ec0effa818a86233fe64cb0dad2c61bbb4bb6 (diff) | |
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Switch over to Lerna + Yarn Workspaces setup for a mono-repo approach
Diffstat (limited to 'src/contract.ts')
-rw-r--r-- | src/contract.ts | 80 |
1 files changed, 0 insertions, 80 deletions
diff --git a/src/contract.ts b/src/contract.ts deleted file mode 100644 index 1aacc65dc..000000000 --- a/src/contract.ts +++ /dev/null @@ -1,80 +0,0 @@ -import * as Web3 from 'web3'; -import * as _ from 'lodash'; -import promisify = require('es6-promisify'); -import {SchemaValidator, schemas} from '0x-json-schemas'; -import {AbiType} from './types'; - -export class Contract implements Web3.ContractInstance { - public address: string; - public abi: Web3.ContractAbi; - private contract: Web3.ContractInstance; - private defaults: Partial<Web3.TxData>; - private validator: SchemaValidator; - // This class instance is going to be populated with functions and events depending on the ABI - // and we don't know their types in advance - [name: string]: any; - constructor(web3ContractInstance: Web3.ContractInstance, defaults: Partial<Web3.TxData>) { - this.contract = web3ContractInstance; - this.address = web3ContractInstance.address; - this.abi = web3ContractInstance.abi; - this.defaults = defaults; - this.populateEvents(); - this.populateFunctions(); - this.validator = new SchemaValidator(); - } - private populateFunctions(): void { - const functionsAbi = _.filter(this.abi, abiPart => abiPart.type === AbiType.Function); - _.forEach(functionsAbi, (functionAbi: Web3.MethodAbi) => { - if (functionAbi.constant) { - const cbStyleCallFunction = this.contract[functionAbi.name].call; - this[functionAbi.name] = { - callAsync: promisify(cbStyleCallFunction, this.contract), - }; - } else { - const cbStyleFunction = this.contract[functionAbi.name]; - const cbStyleEstimateGasFunction = this.contract[functionAbi.name].estimateGas; - this[functionAbi.name] = { - estimateGasAsync: promisify(cbStyleEstimateGasFunction, this.contract), - sendTransactionAsync: this.promisifyWithDefaultParams(cbStyleFunction), - }; - } - }); - } - private populateEvents(): void { - const eventsAbi = _.filter(this.abi, abiPart => abiPart.type === AbiType.Event); - _.forEach(eventsAbi, (eventAbi: Web3.EventAbi) => { - this[eventAbi.name] = this.contract[eventAbi.name]; - }); - } - private promisifyWithDefaultParams(fn: (...args: any[]) => void): (...args: any[]) => Promise<any> { - const promisifiedWithDefaultParams = (...args: any[]) => { - const promise = new Promise((resolve, reject) => { - const lastArg = args[args.length - 1]; - let txData: Partial<Web3.TxData> = {}; - if (this.isTxData(lastArg)) { - txData = args.pop(); - } - txData = { - ...this.defaults, - ...txData, - }; - const callback = (err: Error, data: any) => { - if (_.isNull(err)) { - resolve(data); - } else { - reject(err); - } - }; - args.push(txData); - args.push(callback); - fn.apply(this.contract, args); - }); - return promise; - }; - return promisifiedWithDefaultParams; - } - private isTxData(lastArg: any): boolean { - const isValid = this.validator.isValid(lastArg, schemas.txDataSchema); - return isValid; - } -} |