diff options
Diffstat (limited to 'packages/testnet-faucets/src/ts/zrx_request_queue.ts')
-rw-r--r-- | packages/testnet-faucets/src/ts/zrx_request_queue.ts | 46 |
1 files changed, 46 insertions, 0 deletions
diff --git a/packages/testnet-faucets/src/ts/zrx_request_queue.ts b/packages/testnet-faucets/src/ts/zrx_request_queue.ts new file mode 100644 index 000000000..3d73f9dd2 --- /dev/null +++ b/packages/testnet-faucets/src/ts/zrx_request_queue.ts @@ -0,0 +1,46 @@ +import { ZeroEx } from '0x.js'; +import { BigNumber } from '@0xproject/utils'; +import * as _ from 'lodash'; + +import { configs } from './configs'; +import { errorReporter } from './error_reporter'; +import { RequestQueue } from './request_queue'; +import { utils } from './utils'; + +// HACK: web3 leaks XMLHttpRequest into the global scope and causes requests to hang +// because they are using the wrong XHR package. +// Filed issue: https://github.com/ethereum/web3.js/issues/844 +// tslint:disable-next-line:ordered-imports +import * as Web3 from 'web3'; + +const DISPENSE_AMOUNT_ZRX = new BigNumber(0.1); +const QUEUE_INTERVAL_MS = 5000; + +export class ZRXRequestQueue extends RequestQueue { + private _zeroEx: ZeroEx; + constructor(web3: Web3, networkId: number) { + super(web3); + this.queueIntervalMs = QUEUE_INTERVAL_MS; + const zeroExConfig = { + networkId, + }; + this._zeroEx = new ZeroEx(web3.currentProvider, zeroExConfig); + } + protected async processNextRequestFireAndForgetAsync(recipientAddress: string) { + utils.consoleLog(`Processing ZRX ${recipientAddress}`); + const baseUnitAmount = ZeroEx.toBaseUnitAmount(DISPENSE_AMOUNT_ZRX, 18); + try { + const zrxTokenAddress = this._zeroEx.exchange.getZRXTokenAddress(); + const txHash = await this._zeroEx.token.transferAsync( + zrxTokenAddress, + configs.DISPENSER_ADDRESS, + recipientAddress, + baseUnitAmount, + ); + utils.consoleLog(`Sent ${DISPENSE_AMOUNT_ZRX} ZRX to ${recipientAddress} tx: ${txHash}`); + } catch (err) { + utils.consoleLog(`Unexpected err: ${err} - ${JSON.stringify(err)}`); + await errorReporter.reportAsync(err); + } + } +} |