node.js - What is the use of body-parser? -

- 

var express = require('express'); var app = express(); var bodyparser = require('body-parser');  // create application/x-www-form-urlencoded parser var urlencodedparser = bodyparser.urlencoded({ extended: false })  app.use(express.static('public'));  app.get('/index.htm', function (req, res) {    res.sendfile( __dirname + "/" + "index.htm" ); })  app.post('/process_post', urlencodedparser, function (req, res) {     // prepare output in json format    response = {        first_name:req.body.first_name,        last_name:req.body.last_name    };    console.log(response);    res.end(json.stringify(response)); })  var server = app.listen(8081, function () {    var host = server.address().address   var port = server.address().port    console.log("example app listening @ http://%s:%s", host, port)  })
  1. var bodyparser = require('body-parser');

  2. var urlencodedparser = bodyparser.urlencoded({ extended: false })

  3. app.post('/process_post', urlencodedparser, function (req, res)

can please explain purpose of above 3 lines of code , use of body-parser?

  1. the bodyparser populate req.body property parsed body request. line 1 1 use in class via require.

  2. returns middleware parses urlencoded bodies. parser accepts utf-8 encoding of body , supports automatic inflation of gzip , deflate encodings. extended option allows choose between parsing url-encoded data querystring library (when false) or qs library (when true). "extended" syntax allows rich objects , arrays encoded url-encoded format, allowing json-like experience url-encoded.

  3. with last line saying route has defined use bodyparser have defined

the of stuff have copied https://github.com/expressjs/body-parser. may take @ link


Comments

Post a Comment

Popular posts from this blog

Hatching array of circles in AutoCAD using c# -

-
i beginner in autocad plugins .i have created array of circle using following code. now, have hatch circles in array .how that??how hatch circles @ once? moreover, how can return hatch method , use hatch objects.sorry language.thanks in advance. [assembly: commandclass(typeof(beamsection.class1))] namespace beamsection { public class class1 { //class1 obj = new class1(); [commandmethod("beamatsupport")] public void addlightweightpolyline() { // current document , database document acdoc = application.documentmanager.mdiactivedocument; database accurdb = acdoc.database; promptpointresult ppr = acdoc.editor.getpoint("\nselect starting point "); var ucs = acdoc.editor.currentusercoordinatesystem; point3d startingpt = ppr.value.transformby(ucs); list<double> radius = new list<double>(); radius.add(0.5);
Read more

ios - UITEXTFIELD InputView Uipicker not working in swift -

-
hello trying pop uipickerview view programmatically when user clicks on textfield. have tried doesn't doing anything. isn't working. nothing happening when click textfield class userprofiletableviewcontroller: uitableviewcontroller,uitextfielddelegate,uipickerviewdelegate,uipickerviewdatasource { var itempicker: uipickerview! = uipickerview() @iboutlet weak var gendertxtfield: uitextfield! var gender = ["male","female"] override func viewdidload() { super.viewdidload() gendertxtfield.delegate = self itempicker!.delegate = self itempicker!.datasource = self itempicker!.backgroundcolor = uicolor.blackcolor() self.gendertxtfield.inputview = itempicker } func numberofcomponentsinpickerview(pickerview: uipickerview) -> int{ return 1 } // returns # of rows in each component.. func pickerview(pickerview: uipickerview, numberofrowsincomponent component:
Read more

Python Pig Latin Translator -

-
so have been working on @ codecademy.com while trying learn python. don't know if blind , can't see why won't work or what. here's code won't let me use. function print variable if had typed in , print "empty" if didn't type anything. print "welcome english pig latin translator!" original = raw_input("what's name?") if len(original) > 0 print original else print "empty" if len(original) > 0 else the above lines contains syntax errors. try: if len(original) > 0: else: note added colons, ( : ).
Read more