Nodejs Json Parsing

Question

I am trying load json data using node js for jqgrid. I am using jqgrid and Express Js also. When I run node js it's not loading the json file. Can anyone help me what could be the issue. Here is the node js code snippet:

var express = require("express");
var app     = express();
var path    = require("path");
var config = require('./data.json');

app.get('/',function(req,res) {
    res.sendFile(__dirname + '/griddemo.html')
})

app.use(express.static(__dirname + '/public'))
app.listen(3000);

console.log("Running at Port 3000");

@RobertRozas correct!! Please print the log and check show us the error. — ajay, Apr 21 '15 at 12:23
Is the data.json file i the same path as the file containing the code you provided? Does the data.json file contain a valid json? — Yaki Klein, Apr 21 '15 at 12:48

ajay · Answer 1 · 2015-04-21T15:45:12.320

0

Looks like there is an issue with data.json file path or might be problem with json file. I have tried your script, its working for me. My suggestion is keep an eye on json file path.

edited Apr 21 '15 at 15:45

answered Apr 21 '15 at 12:25

ajay

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score 0 · Answer 2 · edited May 23 '17 at 12:22

You load your JSON data in the config object, then you do nothing with this object.

I suppose you want to pass this config in the HTML file in order to configure the jqgrid plugin (that I don't know BTW).

In this case you should use a templating language to generate a dynamic page (EJS will be more familiar for you if you have previously done PHP, else you should keep - for now - the default one, jade) and pass your config object to the template you made from your HTML.

To illustrate:

...
app.set('view engine', 'ejs');//Don't forget to install the ejs module
app.get('/',function(req,res) {
  res.render(__dirname + '/griddemo.ejs', {jqgridConfig: config})
})
...

app.js

...
<script>
  var jqgrid_config = <%- JSON.stringify(jqgridConfig) %>;
</script>
...

griddemo.ejs

If you don't already know the express app generator, you should better use it, it will highly help you to understand the concepts you need in order to render a dynamic page with Express.

Another way to do the job without generate dynamic pages is to put data.json in /public and to load this JSON file from griddemo.html (see how to use json file in html code)

Nodejs Json Parsing

2 Answers2