How to pass JSON object to node.js server

Question

I have a test JSON object as follows

{ Id: 100, plugins: [{ Name: 'Test', Version: '2' }] }

which I created using

var json = {}; 
json.Id =  100;
var plugins = [];
json.plugins = plugins;
json.plugins.push({"Name" : "Test", "Version" : "2"});

I have a client side function making an AJAX post request as follows

function postJSON() {
    $.ajax({
      type: 'POST',
      url: 'features',
      data: json,
      dataType: 'json'
    });
  }

I am trying to read this information on my server by just typing console.log(req) for now but it does't seem to be getting my json object.

app.post("/features", function(req, res) {
    console.log(req);
})

Thanks for help!

You can create that object by simply writing var json = { Id: 100, plugins: [{ Name: 'Test', Version: '2' }] } — SLaks
– SLaks, Commented Jul 2, 2013 at 15:39

SLaks · Accepted Answer · 2013-07-02 15:30:14Z

6

As long as you have the bodyParser() middleware installed, Express should parse the JSON request payload into req.body.

answered Jul 2, 2013 at 15:30

SLaks

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1 Comment

dopplesoldner Over a year ago

Thanks Slaks! I made the amateur mistake of forgetting to add bodyParser() P.S - I am going to dynamically build up the JSON object based on the plugins installed by the user so that was for illustration purposes only

taylorc93 · Accepted Answer · 2013-07-02 15:33:15Z

0

Your creation is wrong. JSON is a key-value based storage, meaning it has the syntax of a hash. Try this:

var json = {}; 
json['Id'] =  100;
var plugins = [];
plugins.push({"Name" : "Test", "Version" : "2"});
json['plugins'] = plugins;

answered Jul 2, 2013 at 15:33

taylorc93

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4 Comments

SLaks Over a year ago

That is not true; his JSON is perfectly fine. There is no difference between dot notation and indexer notation.

taylorc93 Over a year ago

Oh, really? The way I was taught, I was told that this was the proper syntax. I didn't know you could do it two different ways

SLaks Over a year ago

You were taught incorrectly. You should only use indexer notation if you're passing a variable (someObject[someVar]). Otherwise, you should always use ..

dopplesoldner Over a year ago

Yep Slaks is correct. Even your code results in the same JSON object as mine

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