readline-async-await.js

import fs from 'fs';
import readline from 'readline';

async function process() {
    return new Promise((resolve, reject) => {
        let stream = fs.createReadStream('/tmp/file.txt');

        let rl = readline.createInterface({
            input: stream
        });

        rl.on('line', (line) => {
            console.log(line);
        }).on('close', () => {
            resolve('finished');
        }).on('error', err => {
            reject(err);
        })

    });
}

(async function () {
    try {
        const result = await process();
        console.log(result)
    } catch (e) {
        console.error(e);
    }
})()