Develop Reference

JavaScript: How can Get the json.file that it was post to my code?

Imagine if I want to wait to get JSON file If they post to me. I can get it. if it's not I waite for it. I want to get it and store it and parse it to work on it.
(I need to receive the request )How I can have JSON file I can get it to take what I need then post my HTTP response to the agent that sends me file that file.
my JSON file name is : flow_demo_1

var device_array = { device_id : [["7547092d-e03e-5148-a54f-8276a85d7f70","cpp_node_192-168-56-1:6111"]] };
var from_file_array = [
{ device_id_from_file: "7547092d-e03e-5148-a54f-8276a85d7f70" },
{ device_id_from_file: "93e71ba7-fb56-5592-a5f6-d855203dd7ae" },
{ device_id_from_file: "93e71ba7-fb56-5592-a5f6-d855203dd7ae" },
{ device_id_from_file: "fe21abdf-706f-5c7b-adb8-2507e145e820" },
];
var val = device_array['device_id'][0][0];
for (var i= 0; i < from_file_array.length; i++) {
if(from_file_array[i].device_id_from_file === val){
console.log("device ids are matches");
};
};

try this,you just want the which file data is matched right?
from_file_array.filter(each=>each.device_id_from_file===device_array.device_id[0][0])
it will give the matched device_id_from_file;if not you will get empty array

JSON POST Import

I am trying to import data from a JSON POST API into a Google Sheet. I have been able to log the full JSON response but now can't filter it to just the attribute that I require as I keep getting an error saying that the attribute is 'undefined' when I try to log DIV1. I have tried testing it for other parameters such as the DrawDate and DrawType, but keep getting the same message.
function main() {
// Make a POST request with a JSON payload.
var data = {
'CompanyId': 'GoldenCasket',
'MaxDrawCount': 1,
'OptionalProductFilter':['OzLotto']};
var options = {
'method' : 'post',
'contentType': 'application/json',
// Convert the JavaScript object to a JSON string.
'payload' : JSON.stringify(data)};
var response = UrlFetchApp.fetch('https://data.api.thelott.com/sales/vmax/web/data/lotto/opendraws', options);
Logger.log('output: '+ response);
var json = JSON.parse(response)
var DIV1 = json["Div1Amount"];
Logger.log(DIV1)
}
I am getting this response to the request, but I would like to receive just the Div1Amount.
output:
{
"Draws":[
{
"ProductId":"OzLotto",
"DrawNumber":1323,
"DrawDisplayName":"Oz Lotto $80,000,000",
"DrawDate":"2019-06-25T00:00:00",
"DrawLogoUrl":"http://media.tatts.com/TattsServices/Lotto/Products/OzLotto_v1.png",
"DrawType":"Jackpot",
"Div1Amount":80000000.0000,
"IsDiv1Estimated":false,
"IsDiv1Unknown":false,
"DrawCloseDateTimeUTC":"2019-06-25T09:35:00",
"DrawEndSellDateTimeUTC":"2019-06-25T09:30:00",
"DrawCountDownTimerSeconds":538150.0
}
],
"ErrorInfo":null,
"Success":true
}

In your response, Div1Amount is inisde Draws list. So, to do that, you have to get the list and iterate through the list then var DIV1 = listObj["Div1Amount"]; will work. Sample code:
//after `var json = JSON.parse(response)` line, change your code with this:
var drawList=json ["Draws"];
//now iterate the list:
for(var i=0;i<drawList.length;i++)
{
var DIV1=drawList[i]["Div1Amount"];
console.log(DIV1);
}

Get object from JSON with jQuery

I'm trying to query a JSON file in my own server using $.getJSON and then cycling inside the objects. No problem so far, then i have an ID which is the name of the object i want to return, but can't seem to get it right:
var id = 301;
var url = "path/to/file.json";
$.getJSON( url, function( json ) {
var items = [];
items = json;
for (var i = 0; i < items.length; i++) {
var item = items[i];
console.log(item);
}
});
This prints the following in the console:
Now let's say i want return only the object == to id so then i can refer to it like item.banos, item.dorms etc.
My first approach was something like
console.log(json.Object.key('301'));
Which didn't work
Any help would be very much appreciated.

It seems like your response is wrapped in an array with one element.
You can access object properties dynamically via square brackets:
var id = 301;
var url = "path/to/file.json";
$.getJSON(url, function(json) {
console.log(json[0][id].banos);
});

As you have the name of the property in the object you want to retrieve you can use bracket notation. you can also simplify your code because of this:
var id = 301;
//$.getJSON("path/to/file.json", function(json) {
// response data from AJAX request:
var json = {
'301': {
banos: 2
},
'302': {
banos: 3
},
'303': {
banos: 4
},
'304': {
banos: 5
},
};
var item = json[id];
console.log(item);
//});

$.each(items,function(n,value){
if(n==301)
alert(value);
});

getting json data from tree and feeding through to associative array

I'm trying to read a JSON API and parse the data into an associative array but I can't seem to get it to work. I must be doing something wrong.
Here is my code:
var matchedValues = {};
$.getJSON(url ,function(data) {
$.each(data, function() {
var value = this["value"];
var climb = this["climb"];
matchedValues[value] = climb;
});
});
console.log(matchedValues); //Outputs Object{}
Any ideas? I don't think I am console logging it correctly or maybe I'm doing something wrong?
Thanks

matchedValues is an Object not an array. try something likmatchedValues['your_key'] to get the value.

I assume that the data coming back from the ajax call is a JSON string, which you wish to parse. If that’s the case, then the problem is already solved using JavaScript’s JSON object:
var matchedValues = {};
$.getJSON(url ,function(data) {
matchedValues=JSON.parse(data);
});
console.log(JSON.stringfy(matchedValues)); //Outputs Object{}
As you see in the above example, you have to reverse the process in order to print it out.
See JSON MDN Article

Try this approach from jquery documentation
EDIT:
$.getJSON(url, function(data) {
var matchedValues = {};
$.each(data, function(key, val) {
items[key] = val;
});

If I understood your question, then your data is an Array of objects, and you want to consolidate them in a big object.
If got it right, then use this approach:
var matchedValues = {};
$.getJSON("ajax/test.json", function(data) {
for (var i = 0; i < data.length; i++) {
for (key in data[i]) {
matchedValues[key] = data[i][key];
}
}
console.log(matchedValues); //this should print your object.
});
The data objects must have different keys or they will be overlapsed.

retrieve value in unnamed json array url

I'm struggling to retrieve some value on a json in this url:
http://go-gadget.googlecode.com/svn/trunk/test.json
the url data looks like this:
[
{
"key":{
"parentKey":{
"kind":"user",
"id":0,
"name":"test 1"
},
"kind":"smsgateway",
"id":5707702298738688
},
"propertyMap":{
"content":"test1 content",
"date":"Dec 12, 2013 2:58:57 PM",
"user":"test1"
}
}]
By ignoring the "key", I want to access the value of "propertyMap" object (content,date and user) using javascript code.
I have tried this code but it couldn't get the result:
var url = "http://go-gadget.googlecode.com/svn/trunk/test.json";
$.getJSON(url, function (json) {
for (var i = 0; i < json.length; i = i + 1) {
var content = json[i].propertyMap.content;
console.log('content : ', content);
var user = json[i].propertyMap.user;
console.log('user: ', user);
var date = json[i].propertyMap.date;
console.log('date : ', date);
}
});
(unsuccessful code here http://jsfiddle.net/KkWdN/)
considering this json can't be change, is there any mistake I've made from the code above or there's any other technique to get the result?
I just learn to use javascript and json for 1 month so response with an example is really appreciated.
--edited: I change [].length to json.length, now I'm looking for the answer to access the url

That would be something like :
$.getJSON("http://go-gadget.googlecode.com/svn/trunk/test.json", function(json) {
for (var i = 0; i < json.length; i++) {
var map = json[i].propertyMap;
var content = map.content;
var user = map.user;
var date = map.date;
$('#date').text(date);
$('#nohp').text(user);
$('#content').text(content);
}
});
But the request fails, as no 'Access-Control-Allow-Origin' header is present on the requested resource, so you're being stopped by the same origin policy

What do you think [].length; would evaluate to .
It is 0 , so it would never go inside the for loop.
Other than that you code looks ok.
Replace your for loop as below
$.getJSON(url, function (json) {
for (var i = 0; i < json.length; i = i + 1) {
Also you seem to be accessing a API as part of the different domain.
So you need to use CORS or JSONP to get this working if you want to retrieve data from a different domain.

Change:
for (var i = 0; i < [].length; i = i + 1) {
to
for (var i = 0; i < json.length; i = i + 1) {
DEMO here.

How about using something like the following
In your case, say the object is myObj, I would get the value like this
var content = fetchValue(myObj, [0, "propertyMap", "content"], "");
var date = fetchValue(myObj, [0, "propertyMap", "date"], new Date());
var user = fetchValue(myObj, [0, "propertyMap", "user"], "");
Just to make sure that we send a default value in case we do not get the desired ojbect. The beauty of this approach is that now you do not have to worry about array or objects nested in the structure. The fetchValue function could be something like below.
function fetchValue(object, propertyChain, defaultValue){
var returnValue;
try{
returnValue = object;
forEach(propertyChain, function(element){
returnValue = returnValue[element];
});
}catch(err){
return defaultValue;
}
if(returnValue == undefined) {
returnValue = defaultValue;
}
return returnValue;
}
Adding the forEach function
function forEach(array, action){
for(var x in array)
action(array[x]);
}