38 lines
1.0 KiB
JavaScript
38 lines
1.0 KiB
JavaScript
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const ProviderEngine = require('web3-provider-engine');
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// const ProviderSubprovider = require("web3-provider-engine/subproviders/provider.js");
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const RpcSubprovider = require('web3-provider-engine/subproviders/rpc.js');
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class Provider {
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constructor(web3Endpoint) {
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this.engine = new ProviderEngine();
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// this.web3 = new Web3(engine);
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this.engine.addProvider(new RpcSubprovider({
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rpcUrl: web3Endpoint
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}));
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this.engine.on('block', function (block) {
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console.log('================================');
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console.log('BLOCK CHANGED:', '#' + block.number.toString('hex'), '0x' + block.hash.toString('hex'));
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console.log('================================');
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});
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// network connectivity error
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this.engine.on('error', function (err) {
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// report connectivity errors
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console.error(err.stack);
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});
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this.engine.start();
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}
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sendAsync() {
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this.engine.sendAsync.apply(this.engine, arguments);
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}
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send() {
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return this.engine.send.apply(this.engine, arguments);
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}
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}
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module.exports = Provider;
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