superagent

Nodejs crawler superagent, cheerio, and nodejssuperagent Preface I have heard of Crawlers for a long time. I started to learn nodejs over the past few days and wrote an article title, user name, number of readings, number of recommendations, and user profile on the homepage of the crawler blog garden. Now I have a small summary. These points are used: 1. node core module-File System 2. Third-party module used for http requests-

File upload and forward using egg.js + superagent//App/controller/file.jsConstController= require(' Egg ').Controller;ConstFs= require(' FS ')ConstRequest= require(' superagent ')ConstSendtowormhole= require(' Stream-wormhole ')ConstToArray= require(' Stream-to-array ');ConstPath= require(' path ');ConstUuid= require(' Uuid/v1 ');classFilecontrollerextendsController{Asyncfile(){ Const {CTx,App} = Th

GoalCreate a Lesson3 project in which to write code.When accessed in the browser http://localhost:3000/ , the output CNode (https://cnodejs.org/) Community home page of all post titles and links, in the form of JSONKnowledge Points: Learn to crawl Web pages using superagent Learn to use Cheerio Analysis Web pages Library Introduction:Superagent (http://visionmedia.github.io/superagent/) is

Superagent Version: 3.8.3Sample code:varProcess= require(' Process ');varSuperagent= require(' superagent ');varhttp= require(' http ');varFs= require(' FS ');varReadLine= require(' ReadLine ');varPicurl= "Http://192.168.1.125:9080/acps-mgm/login/changeValidateCode";varPostURL= "Http://192.168.1.125:9080/acps-mgm/login/login";varTesturl= "http://192.168.1.125:9080/acps-mgm/merchant/view/235162";varUsername=

Example code:var superagent = require(‘superagent‘);superagent.get("http://localhost:8091/user/all?reqUsername=adminreqPasswd=654321") .end( (err, res)=> { if (err) { console.log("出错：" + err); } else { console.log(res.text); } } );// user addvar url = "http://localhost:8091/user/update"superagent.post(url) .type("form") .send({ id: ‘5‘, fu

1. Module use(1) HTTP request library in Superagent:nodejs (each language has countless, Java Okhttp,ios afnetworking)(2) HTML parsing Library in Cheerio:nodejs (basic for each language). ）(3) Parallel/asynchronous concurrency function execution Library in Async:nodejs (this is very bull, other languages are not much the same type)2. Crawling contentMulti-play Hero League hero page, by parsing the URL of each hero within the page, and then request the hero's detailed data, extract the required d

' use strict '; ConstController= require(' Egg ').Controller; ConstRequest= require(' superagent '); classApicontrollerextendsController{Asyncfile(){ Const {CTx,App} = This; //egg built-in interface gets the uploaded file, reference address: ConstStream=AwaitCTX.GetFileStream(); ConstUrl= ' Http://demo/api/file '; //Attach need to pass 3 parameters, the official document said that the file name is

var htmlentities = { encode:function (str) { var buf = []; for (Var i=str.length-1;i>=0;i--) { buf.unshift ([' "", Str[i].charcodeat (), '; ']. Join (')); } Return Buf.join ("); }, decode:function (str) { return str.replace (/# (\d+);/g, function (match, DEC) { return string.fromcharcode (dec); });} }Superagent Cr

This article mainly introduced the Node.js [superAgent] Request Use example, has summarized the POST request, the GET request, the delete request and the PUT request example, recommends to everybody, hoped that everybody can like. POST request: The code is as follows:Request.post ('/api/pet '). End (function (Resp,err) {if (resp.body.status===200) {Alert (' Yay got ' + json.stringify (res.body));} else {Return next (Resp.body);}}); GET Request:

This article mainly introduces node. the js [superAgent] request usage example summarizes the post request, get request, delete request, and put request examples, and recommends them to you. Post request: The code is as follows: Request. post ('/api/pet '). End (function (resp, err ){If (resp. body. status === 200 ){Alert ('Yay got '+ JSON. stringify (res. body ));} Else {Return next (resp. body );}}); Get request: The code is as follows

POST request: Copy Code code as follows: Request.post ('/api/pet ') . End (function (Resp,err) { if (resp.body.status===200) { Alert (' Yay got ' + json.stringify (res.body)); } else { Return next (Resp.body); } });

article has introduced, so here no longer do the introduction: Click to view 2, need to install the new things: Superagent Role: Similar to request, we can use it to obtain get/post and other requests, and can set the relevant request header information, compared to the use of built-in modules, much simpler. Usage: var superagent = require (' superagent