passing array to server via JSON.stringify() and getting strange result

Question

I am developing an app on node.js, express.js and mongodb. My task is to pass an array to server-side and insert it to db. I've searched throughout the web and found that I need to stringify my array via JSON.stringify(), but when I console it on server side it looks strange and every attempt to use JSON.parse() ends with error. Here is an array which is passed through JSON.stringify():

    [{
    "city": "London",
    "date": "20.11.2015",
    "sector": "A",
    "row": "1",
    "place": "1"
}, {
    "city": "London",
    "date": "20.11.2015",
    "sector": "A",
    "row": "1",
    "place": "2"
}, {
    "city": "London",
    "date": "20.11.2015",
    "sector": "A",
    "row": "2",
    "place": "1"
}, {
    "city": "London",
    "date": "20.11.2015",
    "sector": "A",
    "row": "2",
    "place": "2"
}, {
    "city": "London",
    "date": "20.11.2015",
    "sector": "B",
    "row": "1",
    "place": "1"
}, {
    "city": "London",
    "date": "20.11.2015",
    "sector": "B",
    "row": "1",
    "place": "2"
}, {
    "city": "London",
    "date": "20.11.2015",
    "sector": "B",
    "row": "2",
    "place": "1"
}, {
    "city": "London",
    "date": "20.11.2015",
    "sector": "B",
    "row": "2",
    "place": "2"
}]

when I pass it to server side it looks like this:

{ '[{"city":"London","date":"20.11.2015","sector":"A","row":"1","place":"1"},{"city":"London","date":"20.11.2015","sector":"A","row":"1","place":"2"},{"city":"London","date":"20.11.2015","sector":"A","row":"2","place":"1"},{"city":"London","date":"20.11.2015","sector":"A","row":"2","place":"2"},{"city":"London","date":"20.11.2015","sector":"B","row":"1","place":"1"},{"city":"London","date":"20.11.2015","sector":"B","row":"1","place":"2"},{"city":"London","date":"20.11.2015","sector":"B","row":"2","place":"1"},{"city":"London","date":"20.11.2015","sector":"B","row":"2","place":"2"}]': ''}

and any attempt to parse it leads to 500 error. So what am I doing wrong?

@epascarello $.ajax({ method: "POST", url: "/tickets/addticket", dataType: "json", data: JSON.stringify(dataToSend) }); — Артур Пипченко
– Артур Пипченко, Commented Dec 29, 2015 at 23:00

epascarello · Accepted Answer · 2015-12-29 23:03:16Z

4

Do you see what it is doing? It is using the JSON you passed up as the key with no value.

You can just do

$.ajax({ 
   method: "POST", 
   url: "/tickets/addticket", 
   dataType: "json",
   data : { val : JSON.stringify(dataToSend) }
}

and the node.js read the querystring value for val

1 Comment

epascarello Over a year ago

First way is right too, just would need to change how you were getting the data, but the second way is normally how it is done.

Collectives™ on Stack Overflow

passing array to server via JSON.stringify() and getting strange result

1 Answer 1

1 Comment

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

1 Answer 1

1 Comment

Your Answer

Sign up or log in

Post as a guest

Related