Develop Reference

Parse nested JSON Response Javascript

I know there are several threads on this subject but I've looked through over 30 threads without success.
I have managed to parse a JSON response so it looks like this:
{
"1": {
"id": "1",
"name": "Fruit",
.
.
.
"entities": {
"1": {
"id": "1",
"name": "blue bird",
.
.
.
"status": "1"
},
"2": {
using this code
let json = JSON.parse(body);
console.log(json);
Now I want to access the "id", "name" etc. AND the "id" and "name" for the "entities" tag.
So far I have tried:
console.log(json[0]);
console.log(json.id);
which both returns undefined
I have also tried
console.log(json[0].id);
which gives an error
Any ideas?

In this instance, your first key is 1, so you can access it with json[1].
const json = {
"1": {
"id": "1",
"name": "Fruit"
},
"2": {
"id": "2",
"name": "Veggies"
}
};
console.log(json[1]);

In this json, you can reach the id by
json.1.id
But I think that first of all your json is not correctly written, you should have something like
{
"elements": [
{ "id" : 1, "name" : "fruit" },
{ "id" : 2, "name" : "vegetable" }
]
}
like that, json.elements is a collection/array, and you can loop, count, or any other things you will not be able to do because your json looks like a super heavy list of different properties ( he doesn't know that json.1 and json.2 are the same type of objects.

const jsonData = JSON.parse(body);
for (const i in jsonData) {
for (const j in jsonData[i]) {
console.log('${i}: ${jsonData[i][j]}');
}
}

How to get specific data from object array?

I'm a beginner and would like to know how I can get a specific object from an array
I have an Array that looks like this:
data {
"orderid": 5,
"orderdate": "testurl.com",
"username": "chris",
"email": "",
"userinfo": [
{
"status": "processing",
"duedate": "" ,
}
]
},
To get the data from above I would do something like this:
return this.data.orderid
But how can I go deeper and get the status in userinfo?
return this.data.orderid.userinfo.status
doesn't work... anyone have any ideas?

A few points:
data is not an array, is an Object (see the curly braces, arrays have squared brackets). To be really precise, your syntax is invalid, but I assume you wanted to type data = { ... }, as opposed to data { ... }
Your syntax is almost correct, the only mistake you are making is that userinfo is an array, and arrays have numeric indexes (I.e. array[0], array[1]). What you are looking for is this.data.orderid.userinfo[0].status

Use data.userinfo[0].status to get the value (in your case this.data.userinfo[0].status)
var data = {
"orderid": 5,
"orderdate": "testurl.com",
"username": "chris",
"email": "",
"userinfo": [
{
"status": "processing",
"duedate": "" ,
}
]
};
console.log(data.userinfo[0].status);

User Info is an array, so you would need to access it using indexer like so:
return this.data.userinfo[0].status
MDN on arrays: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array

You need to iterate over data.userinfo (it's an array)
var data = {
"orderid": 5,
"orderdate": "testurl.com",
"username": "chris",
"email": "",
"userinfo": [
{
"status": "processing",
"duedate": "" ,
}
]
};
data.userinfo.forEach(function(element) {
console.log(element.status);
});

How do I replace json property value in multiple places using JavaScript in Apigee

I need to replace multiple occurrence of property value in a json request using JavaScript. I have tried this in JSFiddle and it worked but the same code in an Apigee JavaScript policy is not replacing the value.
I have json data as follows:
[
{
"Name": "app1",
"groups": [
{
"desc": "this is a test group",
"id": "test1",
"name": "test grp45"
},
{
"desc": "this is another test group",
"id": "test2",
"name": "test group 2"
}
],
"id": "1"
},
{
"Name": "app2",
"groups": [
{
"desc": "this is a test group",
"id": "test3",
"name": "test group 4"
},
{
"desc": "this is another test group",
"id": "test4",
"name": "test group 4"
}
],
"id": "2"
},
{
"Name": "app3",
"groups": [
{
"desc": "this is a test group",
"id": "test5",
"name": "test group 5"
},
{
"desc": "this is another test group",
"id": "test6",
"name": "test group 6"
}
],
"id": "3"
}
]
Here's what I have tried:
var val = context.getVariabl("request.content");
context.setVariable("val", val);
function findAndReplace(val1, value, replacevalue) {
for (var x in val1) {
if (typeof val1[x] == typeof {}) {
findAndReplace(val1[x], value, replacevalue);
}
if (val1[x] == value) {
val1["name"] = replacevalue;
//break; // uncomment to stop after first replacement
}
}
}
findAndReplace(val, "test1", "img");
var result = JSON.stringify(val);
var obj = JSON.parse(result);
context.setVariable("response.content", obj);
I want to replace the value of "test1" to "img".

First, you're setting response.content with the parsed obj. You'd want:
context.setVariable("response.content", result);
...instead, because the flow variable needs to be a string, not a JavaScript object.
Second, you're getting request.content and then setting response.content. You probably only want one or the other, especially considering that likely this policy is attached to the request OR the response flow, not both (you can't set the request in the response flow, and content.response would be overwritten by the target response).
Use the Apigee trace tool to see where in the flow your policy is executing, and to inspect the variables being set -- this will help you figure out what you need to fix.

As suggested above you have a couple of things to do to get this to work.
First I would suggest you use two policies. The javascript sample above would be called in the request flow - the one above would store a stringified version of the object into an intermediate flow variable say "foo" as below:
var val = JSON.parse(context.getVariable("request.content"));
findAndReplace(val, "test1", "img");
context.setVariable("foo",JSON.stringify(val));
In the response flow you can then use an assign message policy to insert "foo" into the response. As below:
<?xml version="1.0" encoding="UTF-8" standalone="yes" ?>
<AssignMessage async="false" continueOnError="false" enabled="true" name="assignFoo">
<DisplayName>assignFoo</DisplayName>
<FaultRules/>
<Properties/>
<Set>
<Headers/>
<Payload contentType="application/json; charset=utf-8">{foo}</Payload>
<StatusCode>200</StatusCode>
<ReasonPhrase>OK</ReasonPhrase>
</Set>
<AssignTo createNew="false" transport="http" type="response" />
<IgnoreUnresolvedVariables>true</IgnoreUnresolvedVariables>
</AssignMessage>

Use string replace()
This converts the JSON into string
JSON.stringify(json).replace("test1", "img")
and then you could convert it back to JSON with replaced values
JSON.parse(json)

Converting JSON/JS Object to array

I have a JSON response from my API that is structured like so:
{
"data": [
{
"id": "1", "name": "test"
},
{
"id": "2", "name": "test2"
}
]
}
When I reference data I get the array with each record. I need the curly braces to be brackets due to a plugin I am using requiring it to be an array.
Desired output:
[
["1", "test"],
["2", "test"]
]
How can I convert the above JSON to this?
Edit:
This turned out to be a problem with a plugin I was using, and I knew how to do this fine all along. Thought I was going crazy but my code was fine, some plugin was screwing things up.

You can do this using Array.prototype.map
var arr = json.data.map(function(x){
return [x.id, x.name];
});

Something like this maybe: http://jsfiddle.net/3gcg6Lbz/1/
var arr = new Array();
var obj = {
"data": [
{
"id": "1", "name": "test"
},
{
"id": "2", "name": "test2"
}
]
}
for(var i in obj.data) {
var thisArr = new Array();
thisArr.push(obj.data[i].id);
thisArr.push(obj.data[i].name);
arr.push(thisArr);
}
console.log(arr);

JSON parsing in JS

I am getting a JSON in response from server:
{
"width": "765",
"height": "990",
"srcPath": "http://192.168.5.13:8888/ebook/user_content/_ADMIN_/_MERGED_/1273.pdf",
"coverPage": "",
"documents": [
{
"index": "1",
"text": "Archiving Microsoft® Office SharePoint® Server 2007 Data with the Hitachi Content Archive Platform and Hitachi Data Discovery for Microsoft SharePoint",
"type": "doc",
"id": "HDS_054227~201106290029",
"children": [
{
"text": "Page 1",
"leaf": "true",
"pageLocation": "http://192.168.5.13:8888/ebook/user_content/_ADMIN_/_IMAGES_/HDS_054227~201106290029/image_1.png"
},
{
"text": "Page 2",
"leaf": "true",
"pageLocation": "http://192.168.5.13:8888/ebook/user_content/_ADMIN_/_IMAGES_/HDS_054227~201106290029/image_2.png"
}
]
},
{
"index": "11",
"text": "Brocade FCoE Enabling Server I/O Consolidation",
"type": "doc",
"id": "HDS_053732~201105261741",
"children": [
{
"text": "Page 1",
"leaf": "true",
"pageLocation": "http://192.168.5.13:8888/ebook/user_content/_ADMIN_/_IMAGES_/HDS_053732~201105261741/image_1.png"
},
{
"text": "Page 2",
"leaf": "true",
"pageLocation": "http://192.168.5.13:8888/ebook/user_content/_ADMIN_/_IMAGES_/HDS_053732~201105261741/image_2.png"
}
]
}
]
}
And I want to get pagelocation of the children.
Can anyone tell me how to do this?
Hi
i also want to get indexes from this and then want to get pagelocations of that particular children. Can you tell me how would i do that?
And also when i when i am getting indexes array it is returning me ,, only and not the index nos.
I am using following code for that :
indexes=response.documents.map(function(e){ return e.children.index; })
Thanks & Regards

If you're interested in simply retrieving all the page locations, you can do it using filter:
var locations = [];
json.documents.forEach(function(e,i) {
e.children.forEach(function(e2,i2) {
locations.push(e2.pageLocation);
)}
});
// returns flat array like [item1,item2,item3,item4]
You can get an array of arrays using map:
var locations = [];
var locations = json.documents.map(function(e) {
return e.children.map(function(e2) {
return e2.pageLocation;
});
});
// returns 2-dimensional array like [[item1,item2],[item1,item2]]

Your json response is an appropriate javascript object So you can access all elements of the object like you do as in back end.
here, you have an array of object of the type documents and each document object has array of objects of the type children. so
syntax would be
myjson.documents[0].children[0].pagelocation
( = http://192.168.5.13:8888/ebook/user_content/_ADMIN_/_IMAGES_/HDS_054227~201106290029/image_1.png)
will give you the very first page location..
and so on