mysql - Cannot read property 'name' of undefined in Node JS -


i new in node js. i'm trying make crud app in node js using mysql. facing error can't understood or handle. please help. , thankx in adv.

i can't read input field value ejs page server.js page.

my server.js file given below

        // server.js var express = require('express'); var app = express(); var bodyparser = require('body-parser'); var mysql = require('mysql'); var con = mysql.createconnection({     host: "localhost",     user: "root",     password: "",     database: "tuts_rest" });  // set view engine ejs app.set('view engine', 'ejs');  // page  app.get('/about', function(req, res) {     res.render('pages/about'); });  app.post('/insert', function(req,res){      con.connect();      console.log(req.body.name);      con.query("insert users(name,email,country) values('"+req.body.name+"','"+req.body.email+"','"+req.body.country+"')", function(err, results) {       if (!err)         res.send('inserted successfully!')       else         throw error;     });      con.end(); });  app.listen(8080); console.log('8080 magic port');

i'm sending following data using form

<form role="form" action="/insert" method="post">     <div class="form-group">         <label for="lname">name:</label>         <input type="text" class="form-control" id="name" name="name" required>     </div>     <div class="form-group">         <label for="email">email address:</label>         <input type="email" class="form-control" id="email" name="email" required>     </div>     <div class="form-group">         <label for="country">country:</label>         <input type="text" class="form-control" id="country" name="country">     </div>     <button type="submit" class="btn btn-default">submit</button> </form>

and error given below

typeerror: cannot read property 'name' of undefined     @ e:\xampp\htdocs\node\basic\server.js:40:22     @ layer.handle [as handle_request] (e:\xampp\htdocs\node\basic\node_modules\express\lib\router\layer.js:95:5)     @ next (e:\xampp\htdocs\node\basic\node_modules\express\lib\router\route.js:137:13)     @ route.dispatch (e:\xampp\htdocs\node\basic\node_modules\express\lib\router\route.js:112:3)     @ layer.handle [as handle_request] (e:\xampp\htdocs\node\basic\node_modules\express\lib\router\layer.js:95:5)     @ e:\xampp\htdocs\node\basic\node_modules\express\lib\router\index.js:281:22     @ function.process_params (e:\xampp\htdocs\node\basic\node_modules\express\lib\router\index.js:335:12)     @ next (e:\xampp\htdocs\node\basic\node_modules\express\lib\router\index.js:275:10)     @ expressinit (e:\xampp\htdocs\node\basic\node_modules\express\lib\middleware\init.js:40:5)     @ layer.handle [as handle_request] (e:\xampp\htdocs\node\basic\node_modules\express\lib\router\layer.js:95:5)

requiring body-parser not anything. need make express use it.

// accept url encoded app.use(bodyparser.urlencoded({     extended: true }));  // accept json  app.use(bodyparser.json());

note:

  • your queries wide open sql injection. use prepared statements or use query builder knex you.

  • instead of creating , managing connections one-by-one, use connection pooling. so, usemysql.createpool instead of mysql.createconnection


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