squid-js/src/keeper/Web3Provider.ts

import * as Web3 from 'web3'
import Config from '../models/Config'

export default class Web3Provider {
    /**
     * Returns Web3 instance.
     * @return {Web3}
     */
    public static getWeb3(config: Partial<Config> = {}): Web3 {
        return new Web3(
            config.web3Provider ||
                Web3.givenProvider ||
                new Web3.providers.HttpProvider(config.nodeUri)
        )
    }
}