32 lines
1.3 KiB
TypeScript
32 lines
1.3 KiB
TypeScript
// HACK: web3 injects XMLHttpRequest into the global scope and ProviderEngine checks XMLHttpRequest
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// to know whether it is running in a browser or node environment. We need it to be undefined since
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// we are not running in a browser env.
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// Filed issue: https://github.com/ethereum/web3.js/issues/844
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(global as any).XMLHttpRequest = undefined;
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import ProviderEngine = require('web3-provider-engine');
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import RpcSubprovider = require('web3-provider-engine/subproviders/rpc');
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import * as Web3 from 'web3';
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import {constants} from './constants';
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import {EmptyWalletSubProvider} from '../../src/subproviders/empty_wallet_subprovider';
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export const web3Factory = {
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create(hasAddresses: boolean = true): Web3 {
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const provider = this.getRpcProvider(hasAddresses);
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const web3 = new Web3();
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web3.setProvider(provider);
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return web3;
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},
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getRpcProvider(hasAddresses: boolean = true): Web3.Provider {
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const provider = new ProviderEngine();
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const rpcUrl = `http://${constants.RPC_HOST}:${constants.RPC_PORT}`;
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if (!hasAddresses) {
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provider.addProvider(new EmptyWalletSubProvider());
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}
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provider.addProvider(new RpcSubprovider({
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rpcUrl,
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}));
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provider.start();
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return provider;
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},
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};
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