节点JS请求获取ETIMEDOUT'IP地址'

Question

Her's what i am doing in the code

i am Reading a text file with around 3500 links then i am reading each link , filtering the one i want and doing a request to get the status code, link, and page title (using cheerio). after around the looping the 100th or 200th link i get the "connect ETIMEDOUT 40...:443". links look good. Whats going on here? is the web server kicking me out thinking its is a DDOS?, i am doing this for a company i work for and this is not the intention obviously. if any of you want to test with large amount links , i used https://hackertarget.com/extract-links/ to get the links then put it in a text file.

Here is my code

 var request = require('request'); var cheerio = require('cheerio'); var URL = require('url-parse'); var axios = require('axios'); const fs = require('fs'); const readline = require('readline'); var main = []; var linkdata = []; const rl = readline.createInterface({ input: fs.createReadStream('C:/Users/Jay/Documents/Javascript/crawl/links.txt'), crlfDelay: Infinity }); rl.on('line', (link) => { if (link.startsWith('https://www.example.com')) { var encodeLink = encodeURI(link) request(encodeURI(encodeLink), function (error, response, body) { console.log("Link: ",encodeLink) if (error) { console.log("Error:Request " + error); } // Check status code (200 is HTTP OK) if (response.statusCode === 200) { // Parse the document body var $ = cheerio.load(body); var Status_200 = { "status Code": response.statusCode, "Page title:": $('title').text(), "Original Link": encodeLink, } main.push(Status_200) } if (response.statusCode === 302 || response.statusCode === 404 || response.statusCode === 500) { // Parse the document body var Status_Errors = { "status Code": response.statusCode, "Page title:": $('title').text(), "Original Link": encodeLink, } main.push(Status_Errors) } //console.log(JSON.stringify(main)) fs.writeFile("C:/Users/Jay/Documents/Javascript/crawl/output.json", JSON.stringify(main), (err) => { if (err) console.log(err); console.log("Successfully Written to File."); }); }) } }); 

Answer 1

Put a try catch around since using async to see if that helps with memory error you getting, probably good practice anyway

 try { const body = response.data; if (response.status === 200) { //do ur thing } if (response.status === 302 || response.status === 404 || response.status === 500) { // Parse the document body //do ur thing } fs.writeFile("C:/Users/T440/Documents/crawl/output.json", JSON.stringify(main), (err) => { if (err) console.log(err); console.log("Successfully Written to File."); }); } catch (error) { //catch them erros } main.push(Status_ErrorsCatch) 

Answer 2

With some suggestions from the comments i slowed down the process with readline async iterator structure as well as using axios for more promise friendly

Here is sample of how i fixed the ETIMEDOUT 'ip address' issue, i am having memmory issue now but the original problem is solved i think

 async function processLineByLine() { const rl = readline.createInterface({ input: fs.createReadStream('C:/Users/T440/Documents/crawl/links.txt'), crlfDelay: Infinity }); for await (const line of rl) { if (line.startsWith('https://www.example.com')) { var encodeLink = encodeURI(line); const response = await axios.get(encodeLink).catch((err)=>{