node-fetch Advanced Usage All In One

fetch

// stream

https://www.npmjs.com/package/node-fetch#streams

demos

Node.js web crawler

import fetch from "node-fetch";

import path from 'node:path';
import {fileURLToPath} from 'node:url';

// import fs from 'node:fs';
import {createWriteStream} from 'node:fs';
import {pipeline} from 'node:stream';
import {promisify} from 'node:util'

// const __filename = fileURLToPath(import.meta.url);
// const __dirname = path.dirname(__filename);
// console.log(`import.meta.url`, import.meta.url)
// console.log(`__dirname`, __dirname)


async function downloadFile(url, path) {
  const streamPipeline = promisify(pipeline);
  fetch(url).then(async (res) => {
    if (!res.ok) {
      throw new Error(`unexpected response ${res.statusText}`);
    }
    console.log(`✅ res =`, res)
    return await streamPipeline(res.body, createWriteStream(path));
  }).catch(err => {
    console.log(`❌ err =`, err)
  }).finally(() => {
    console.log(`finally 

标签：node,const,url,res,path,Usage,import,fetch	

From： https://www.cnblogs.com/xgqfrms/p/17659774.html