Get image as base64 string using node-fetch

fetch.js

'use strict';

const fetch = require('node-fetch')
    , base64stream = require('base64-stream');

const URL = 'https://www.google.de/images/branding/googlelogo/2x/googlelogo_color_272x92dp.png';

fetch(URL)
    .then((res) => {
        return new Promise((resolve, reject) => {
            let chunks = [];
            let myStream = res.body.pipe(base64stream.encode());
            myStream.on('data', (chunk) => {
                chunks = chunks.concat(chunk);
            });
            myStream.on('end', () => {
                resolve(chunks.toString('base64'));
            });
        });
    })
    .then(console.log);

@prionkor try like this

const { Base64Encode } = require("base64-stream");
const fetch = (...args) =>
  import("node-fetch").then(({ default: fetch }) => fetch(...args));

const getImageDataFromUrl = (url) => {
  return fetch(url).then((res) => {
    return new Promise((resolve, reject) => {
      let chunks = [];
      let myStream = res.body.pipe(new Base64Encode());
      myStream.on("data", (chunk) => {
        chunks = chunks.concat(chunk);
      });
      myStream.on("end", () => {
        resolve(chunks.toString("base64"));
      });
    });
  });
};