Develop Reference

How do I access "order" in this JSON (with semicolons in the name)?

Vijay Anand asked this question yesterday, but it was closed before he got an answer:
HTTP Response:
{
"entry": {
"#xml:base": "https://API_PROC_SRV/",
"#xmlns": "http://www.w3.org/2005/Atom",
"#xmlns:m": "http://schemas.microsoft.com/ado/2007/08/dataservices/metadata",
"#xmlns:d": "http://schemas.microsoft.com/ado/2007/08/dataservices",
"id": "https://API_PROC_SRV/A_Order",
"title": {
"#type": "text",
"#text": "A_Order()"
},
"updated": "2020-02-29T07:33:28Z",
"category": {
"#term": "Type",
"#scheme": "http://schemas.microsoft.com/ado/2007/08/dataservices/scheme"
},
"link": [],
"content": {
"#type": "application/xml",
"m:properties": {
"d:Order": "123456789"
}
}
}
}
Javascript code:
var json = response;
var order = json.object.entry.content['m:properties']['d:Order']; // I intend to read Order no from the below response.
Error (example, jsbin.com):
"TypeError: Cannot read property 'entry' of undefined
at null.js:27:25
at https://static.jsbin.com/js/prod/runner-4.1.7.min.js:1:13924
at https://static.jsbin.com/js/prod/runner-4.1.7.min.js:1:10866"
Per JSLint, the response is valid JSON.
json.object.entry is obviously wrong ... but
Q: What is the correct Javascript syntax to access the "order" value (named d:Order), when m:properties and d:Order both have semicolons in the name?
PS: I nominated Vijay's original question for re-opening ... but I'm not optimistic. Hence my new question.

You need to parse the JSON. And there's no object property anywhere, it's jut json.entry.content.
response = `{
"entry": {
"#xml:base": "https://API_PROC_SRV/",
"#xmlns": "http://www.w3.org/2005/Atom",
"#xmlns:m": "http://schemas.microsoft.com/ado/2007/08/dataservices/metadata",
"#xmlns:d": "http://schemas.microsoft.com/ado/2007/08/dataservices",
"id": "https://API_PROC_SRV/A_Order",
"title": {
"#type": "text",
"#text": "A_Order()"
},
"updated": "2020-02-29T07:33:28Z",
"category": {
"#term": "Type",
"#scheme": "http://schemas.microsoft.com/ado/2007/08/dataservices/scheme"
},
"link": [],
"content": {
"#type": "application/xml",
"m:properties": {
"d:Order": "123456789"
}
}
}
}`;
var json = JSON.parse(response);
var order = json.entry.content['m:properties']['d:Order'];
console.log(order);

Javascript parse JSON error, but works fine in validator

When I try to parse this JSON (Discord webhook):
{
"content": "this `supports` __a__ **subset** *of* ~~markdown~~ 😃 ```js\nfunction foo(bar) {\n console.log(bar);\n}\n\nfoo(1);```",
"embed": {
"title": "title ~~(did you know you can have markdown here too?)~~",
"description": "this supports [named links](https://discordapp.com) on top of the previously shown subset of markdown. ```\nyes, even code blocks```",
"url": "https://discordapp.com",
"color": 16324973,
"timestamp": "2018-12-18T09:22:12.841Z",
"footer": {
"icon_url": "https://cdn.discordapp.com/embed/avatars/0.png",
"text": "footer text"
},
"thumbnail": {
"url": "https://cdn.discordapp.com/embed/avatars/0.png"
},
"image": {
"url": "https://cdn.discordapp.com/embed/avatars/0.png"
},
"author": {
"name": "author name",
"url": "https://discordapp.com",
"icon_url": "https://cdn.discordapp.com/embed/avatars/0.png"
},
"fields": [
{
"name": "🤔",
"value": "some of these properties have certain limits..."
},
{
"name": "😱",
"value": "try exceeding some of them!"
},
{
"name": "🙄",
"value": "an informative error should show up, and this view will remain as-is until all issues are fixed"
},
{
"name": "<:thonkang:219069250692841473>",
"value": "these last two",
"inline": true
},
{
"name": "<:thonkang:219069250692841473>",
"value": "are inline fields",
"inline": true
}
]
}
}
Using this code:
var parsed = JSON.parse(req.body)
I get this error:
SyntaxError: Unexpected token o in JSON at position 1
But if I use a website such as
https://jsonformatter.curiousconcept.com
To validate the JSON, it says the JSON is valid.
What is wrong here?
UPDATE
I'm using an express server to simulate discord server, so it sends web hooks to the express server instead, I get the JSON using req.body.

This happens because JSON is a global object (it's the same object where you read the method parse!), so when you invoke JSON.parse(JSON) javascript thinks you want to parse it.
The same thing doesn't happen when you pass the variable to the validator, because it will be assigned to a local variable:
let JSON = "{}";
validate(JSON);
function(x) {
JSON.parse(x); // here JSON is again your global object!
}
EDIT
According to your updated question, maybe it happens because you already use bodyParser.json() as middleware, and when you use it, req.body is already an object and you don't need to parse it again.
Trying to parsing an already parsed object will throw an error.

It would be something like without using JSONStream:
http.request(options, function(res) {
var buffers = []
res
.on('data', function(chunk) {
buffers.push(chunk)
})
.on('end', function() {
JSON.parse(Buffer.concat(buffers).toString())
})
})
For using it with JSONStream, it would be something like:
http.request(options, function(res) {
var stream = JSONStream.parse('*')
res.pipe(stream)
stream.on('data', console.log.bind(console, 'an item'))
})
(OR)
Here is the Some Steps for this issue..
You Can use lodash for resolving this.
import the lodash and call unescape().
const _ = require('lodash');
let htmlDecoder = function(encodedStr){
return _.unescape(encodedStr);
}
htmlDecoder(JSON);

extract particular data from json file

I am new to using javascript as well as json. I need to extract certain sections from json for processing the data.
"response": {
"status": "OK",
"code": 200,
"header": [
{
"key": "Cache-Control",
"value": "no-cache"
},
{
"key": "Pragma",
"value": "no-cache"
},
"body": "{\r\n \"#odata.context\":\"http://localhost:53292/odata/$metadata#Movies\",\"value\":[\r\n {\r\n \"Id\":1,\"Title\":\"StarWars - The Force Awakens\",\"ReleaseDate\":\"2015-10-25T00:00:00+05:30\",\"Rating\":\"FiveStar\",\"Director\":{\r\n \"FirstName\":\"J.J.\",\"LastName\":\"Abrams\"\r\n },\"LastModifiedOn\":\"2016-09-30T10:46:33.3114027+05:30\"\r\n },{\r\n \"Id\":2,\"Title\":\"Mad Max - The Fury Road\",\"ReleaseDate\":\"2015-05-15T00:00:00+05:30\",\"Rating\":\"FourStar\",\"Director\":{\r\n \"FirstName\":\"George\",\"LastName\":\"Miller\"\r\n },\"LastModifiedOn\":\"2016-09-30T10:46:33.3114027+05:30\"\r\n }\r\n ]\r\n}",
"cookie": [],
"responseTime": 30,
"responseSize": 583,
"update": {},
"reason": {},
"text": {},
"json": {},
"mime": {},
"dataURI": {},
"size": {},
"describe": {},
"toObjectResolved": {},
"toJSON": {},
"meta": {}
},
"id": "5a3d3fb3-93a7-4555-b0d5-a4482d98b888"
}
This is my json file. I need only 'body' from it.How to get this done using javascript? Please help me.

var jsonParsed = JSON.parse( put_yourJSON_here );
and then just use jsonParsed.body

Youc an use JSON.parse to convert json data to javascript object and then get the data of body, try with below sample:
var data = JSON.parse("put your data here");
var body = data.body;

Provided that your JSON is a string and not just a general Javascript object, then you can access its properties by parsing it.
var jsonText = '{"id":"123", "name":"Joe Bloggs"}';
var jsonObj = JSON.parse(jsonText);
var name = jsonObj.name; // Joe Bloggs
Edit: Or you can get the resource using jQuery.getJSON():
$.getJSON( "path/to/file.json", function( data ) {
var name = data.name; // Joe Bloggs
});

Dynamically add array elements to JSON Object

I'm creating a JSON object from an array and I want to dynamically push data to this JSON object based on the values from array. See my code for a better understanding of my problem...
for(i=0;i<duplicates.length; i++) {
var request = {
"name": duplicates[i].scope,
"id": 3,
"rules":[
{
"name": duplicates[i].scope + " " + "OP SDR Sync",
"tags": [
{
"tagId": 1,
"variables":[
{
"variable": duplicates[i].variable[j],
"matchType": "Regex",
"value": duplicates[i].scopeDef
}
],
"condition": false,
},
{
"tagId": 1,
"condition": false,
}
],
"ruleSetId": 3,
}
]
}
}
I take object properties from the duplicates array that can have the following elements:
[{scopeDef=.*, scope=Global, variable=[trackingcode, v1, v2]}, {scopeDef=^https?://([^/:\?]*\.)?delta.com/products, scope=Products Section, variable=[v3]}]
As you can see, an object contain variable element that can have multiple values. I need to push to the JSON object all those values dynamically (meaning that there could be more than 3 values in an array).
For example, after I push all the values from the duplicates array, my JSON object should look like this:
name=Products Section,
rules=
[
{
name=Products Section OP SDR Sync,
tags=[
{
variables=
[
{
matchType=Regex,
variable=v3,
value=^https?://([^/:\?]*\.)?delta.com/products
},
{
matchType=Regex,
variable=trackingcode,
value=.*
},
{
matchType=Regex,
variable=v1,
value=.*
},
{
matchType=Regex,
variable=v2,
value=.*
}
],
condition=false,
},
{
condition=false,
tagId=1
}
],
ruleSetId=3
}
]
}
I tried the following code but without success:
for(var j in duplicates[i].variable) {
var append = JSON.parse(request);
append['variables'].push({
"variable":duplicates[i].variable[j],
"matchType": "Regex",
"value": duplicates[i].scopeDef
})
}
Please let me know if I need to provide additional information, I just started working with JSON objects.

First of all, you dont need to parse request, you already create an object, parse only when you get JSON as string, like:
var json='{"a":"1", "b":"2"}';
var x = JSON.parse(json);
Next, you have any property of object wrapped in arrays. To correctly work with it you should write:
request.rules[0].tags[0].variables.push({
"variable":duplicates[i].variable[j],
"matchType": "Regex",
"value": duplicates[i].scopeDef
})
If you want to use your code snippet, you need some changes in request:
var request = {
"name": duplicates[i].scope,
"id": 3,
"variables":[
{
"variable": duplicates[i].variable[j],
"matchType": "Regex",
"value": duplicates[i].scopeDef
}
],
"rules":[
{
"name": duplicates[i].scope + " " + "OP SDR Sync",
"tags": [
{
"tagId": 1,
"condition": false,
},
{
"tagId": 1,
"condition": false,
}
],
"ruleSetId": 3,
}
]
}
}
To understand JSON remember basic rule: read JSON backward. It means:
property
object.property
arrayOfObfects['id'].object.property
mainObject.arrayOfObfects['id'].object.property
and so on. Good luck!

JavaScript issues with json data [duplicate]

This question already has answers here:
Access-Control-Allow-Origin error sending a jQuery Post to Google API's
(7 answers)
Closed 8 years ago.
I'm trying to fetch and parse json data so I could output it to a blank HTML file. The problem that keeps occurring to me is that if I fetch the data and parse it I get a Uncaught TypeError: Cannot read property 'SOCENGPRE' of undefined error. If I fetch the json data in dataType: "text" format I get the XMLHttpRequest cannot load <api url> No 'Access-Control-Allow-Origin' header is present on the requested resource. Origin 'null' is therefore not allowed access. error. The website is on a local machine and I cannot edit the server to be cross-platformed because of person reasons. The code looks like this :
var myDataVar;
function main() {
$.ajax({
url: "http://api&leagues=SOCENGPRE&format=jsonp&callback=?",
dataType: "json",
success: function (data) {
myDataVar = $.parseJSON(data);
getUpcomingFixtures();
}
});
}
function getUpcomingFixtures() {
for (var i = 0; i <= myDataVar.SOCENGPRE.fixtures.length - 1; i++) {
console.log(myDataVar.SOCENGPRE.fixtures[i].id);
console.log(myDataVar.SOCENGPRE.fixtures[i].home_team + " vs " + myDataVar.SOCENGPRE.fixtures[i].away_team);
}
}
An example of the data being fetched looks like this :
{
"SOCENGPRE": {
"league_name": "Barclays Premier League",
"league_phid": null,
"league_type": null,
"fixtures": [{
"id": "64714",
"code": "SOCENGPRE",
"event_slug": "west_ham-tottenham-1401290",
"start": "1399117500",
"home_team": "West Ham",
"home_team_phid": null,
"home_team_logo": "\/\/dxnxhx88pdxyv.cloudfront.net\/logo\/32\/t523.png",
"home_team_short": "",
"away_team": "Tottenham",
"away_team_phid": null,
"away_team_logo": "\/\/dxnxhx88pdxyv.cloudfront.net\/logo\/32\/t498.png",
"away_team_short": "",
"phid": null
}, {
"id": "64711",
"code": "SOCENGPRE",
"event_slug": "manchester_u-sunderland-1401286",
"start": "1399125600",
"home_team": "Manchester U",
"home_team_phid": null,
"home_team_logo": "\/\/dxnxhx88pdxyv.cloudfront.net\/logo\/32\/t20790.png",
"home_team_short": "Man U",
"away_team": "Sunderland",
"away_team_phid": null,
"away_team_logo": "\/\/dxnxhx88pdxyv.cloudfront.net\/logo\/32\/t382.png",
"away_team_short": "",
"phid": null
}, {
"id": "64712",
"code": "SOCENGPRE",
"event_slug": "stoke-fulham-1401288",
"start": "1399125600",
"home_team": "Stoke",
"home_team_phid": null,
"home_team_logo": "\/\/dxnxhx88pdxyv.cloudfront.net\/logo\/32\/t389.png",
"home_team_short": "",
"away_team": "Fulham",
"away_team_phid": null,
"away_team_logo": "\/\/dxnxhx88pdxyv.cloudfront.net\/logo\/32\/t379.png",
"away_team_short": "",
"phid": null
}]
}
}
My goal is to just fetch the fixture id and the two teams competing. Any clue what I'm doing wrong?

Try using the below code , don't parse the JSON again as it is already handled, assuming string is your JSON object.
At beginning of script declare this variable result as array;
var result = [];
function getUpcomingFixtures() {
$.each( string , function ( i , val) {
$.each( val['fixtures'] , function ( k , fixturesData) {
result.push( { id: fixturesData.id ,
hometeam : fixturesData.home_team ,
awayteam : fixturesData.away_team
}
);
});
});
}