I am wondering how can I parse Array of JSON objects in NodeJS?
I want to post JSON array to the server, and be able to use the received array as a regualar JavaScript array.
Thanks in advance.
This is my front-end part that I am converting Array to String using stringify function
document.getElementById("sendJson").addEventListener("click", function () {
$.post("/echo", JSON.stringify(QuestionsArray), function (data) {
alert(data);
});
})
This my back-end part that I am trying to convert Array of JSON object to Array
app.post('/echo', function (req, res) {
var Array = JSON.parse(JSON.stringify(req.toString()));
res.end(Array[0]["QuestionText"].toString());
});
This is Array that I am trying to sent to the server:
[
{
"QuestionText":"What is your Name",
"QuestionType":1
},
{
"QuestionText":"Where are you from",
"QuestionType":2,
"ChoiceList":[
"US",
"UK"
]
},
{
"QuestionText":"Are you married",
"QuestionType":3,
"ChoiceList":[
"Yes",
"No"
]
}
]
Answer
In your app.js:
var bodyParser = require("body-parser");
...
app.use(bodyParser.urlencoded({extended: true}));
Then you can just use req.body to get the posted values:
app.post('/echo', function (req, res) {
var Array = req.body.data;
res.end(Array[0]["QuestionText"].toString());
});
In front-end, don’t do any stringifying:
$.post("/echo", {data: QuestionsArray}, function (data) {
alert(data);
});