Pass a view JSON to the route

Question

I’m trying to send a JSON of view for a route, but I’m not getting it. Unfortunately I know little about JSON, ajax, GET and POST.

In the view, the json:

var json = {
  "numeroMesa": numeroMesa,
  "itens": itens 
};

Remembering that the variable numeroMesa is a global variable in javascript and itens is an array with some numbers.

Soon after, I have:

$.get('addPedido/' + json, function(data) {
  alert(data);
});

And on the route, I have:

Route::get('/addPedido/{json}', function($json) {
  $json = JSON_decode($json);
  return $json;
});

When sending, Alert shows nothing. I’m using framework laravel.

Answer 1

It’s not the best way, or I can still say it’s wrong.

You are concatenating a javascript object with a string (in the url).

  var json = {
      "numeroMesa": numeroMesa,
      "itens": itens 
  };

$.get('addPedido/' + json)

In turn Laravel, expects you to pass another segment (the URL word between bars /) when you use {json}.

A json string passed in the url would look bad and could cause errors. Not to mention you didn’t convert the javascript object to json through JSON.stringify.

The correct approach would be to use the parameters of url in the ajax request. Like this:

$.get('addPedido/', json, function () { /**...**/ })

So you could, by the route of Laravel, use the method Input::get to capture the values passed to the request parameter addPedido/

Thus:

Route::get('/addPedido', function() {
    $input = Input::only('numeroMesa', 'itens');

    var_dump($input['itens'], $input['numeroMesa']);
});

It is therefore not necessary to use the json to send the data to the Laravel. Just use the url parameters to capture them in a request GET.