web3-core-subscriptions

web3-core-subscriptions

This is a sub-package of web3.js

This subscriptions package is used within some web3.js packages.

Please read the documentation for more.

Installation

You can install the package either using NPM or using Yarn

Using NPM

npm install web3-core-subscriptions

Using Yarn

yarn add web3-core-subscriptions

Usage

const Web3Subscriptions = require('web3-core-subscriptions');

const sub = new Web3Subscriptions({
    name: 'subscribe',
    type: 'eth',
    subscriptions: {
        'newBlockHeaders': {
            subscriptionName: 'newHeads',
            params: 0,
            outputFormatter: formatters.outputBlockFormatter
        },
        'pendingTransactions': {
            params: 0,
            outputFormatter: formatters.outputTransactionFormatter
        }
    }
});
sub.attachToObject(myCoolLib);

myCoolLib.subscribe('newBlockHeaders', function(){ ... });