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Postman JSON parse response body arrays inside arrays

I have this JSON Response from API call
[
{
"id": 20599,
"name": "Deliver",
"options": [
{
"id": 63775,
"name": "Item",
"dataType": "SelectMultiOption",
"required": false,
"options": [
{
"id": 426,
"name": "Towels"
},
{
"id": 427,
"name": "Toothbrush"
},
{
"id": 428,
"name": "Pillow"
}
]
}
]
}
]
I am using this code to get the id of the service "Deliver"
var data = JSON.parse(responseBody);
var loop_count = 0
for (count = 0; count < data.length; count++)
{
if (data[count].name == "Deliver")
{
var job_id = data[count].id;
postman.setEnvironmentVariable("service_id", job_id);
}
}
The questions are:
How can I get value from array "options", I need to get the "id":
63775 and store as "item_id" and the "name":"Item" as "item_name" postman variables.
Then I need to select the "options" nested in record
"Item" and select the option "name": "Toothbrush" and store in postman
variable "svc_optn_optn_name" and it's "id" stored in
"svc_optn_optn_id"

Here I am giving my own suggestion for your problem with few lines of code. I am not sure, how are you going to use these values. I also don't know if the outer options array will always have 1 item or more. I have just tried to satisfy your questions.
Please ask/comment, if you have more doubts or I am wrong.
I have created a function getAllPostmanDataFrom(obj) which takes object as parameter which is the value of data[count], gathers necessary info in other object postmanObj and returns it to the caller.
function getAllPostmanDataFrom(obj) {
const item_id = obj.options[0].id;
const item_name = obj.options[0].name;
const svc_optn_optn_name = obj.options[0].options[1].name;
const svc_optn_optn_id = obj.options[0].options[1].id;
const postmanObj = {item_id, item_name, svc_optn_optn_id, svc_optn_optn_name}; // Return object
return postmanObj;
}
var data = [
{
"id": 20599,
"name": "Deliver",
"options": [
{
"id": 63775,
"name": "Item",
"dataType": "SelectMultiOption",
"required": false,
"options": [
{
"id": 426,
"name": "Towels"
},
{
"id": 427,
"name": "Toothbrush"
},
{
"id": 428,
"name": "Pillow"
}
]
}
]
}
]
var count = 0;
var obj = data[count];
var postmanObj = getAllPostmanDataFrom(obj);
//var {item_id, item_name, svc_optn_optn_id} = postmanObj;
console. log(postmanObj)
/*
console.log(item_id);
console.log(item_name);
console.log(svc_optn_optn_id);
console.log(svc_optn_optn_name);
*/
Finally, you can use values contained in postmanObj as follows:.
postman.setEnvironmentVariable("item_id", postmanObj.item_id);
postman.setEnvironmentVariable("item_name", postmanObj.item_name);
And so on.

This is the solution
var data = JSON.parse(responseBody);
variable named as data
var loop_count = 0
for (count = 0; count < data.length; count++)
{
if (data[count].name == "Deliver")
{
var job_id = data[count].id;
postman.setEnvironmentVariable("service_id", job_id);
var job1_name = data[count].options[0].name;
postman.setEnvironmentVariable("item_name", job1_name);
var job2_id = data[count].options[0].id;
postman.setEnvironmentVariable("item_id", job2_id);
var job3_id = data[count].options[0].options[1].id;
postman.setEnvironmentVariable("svc_optn_optn_id", job3_id);
var job4_name = data[count].options[0].options[1].name;
postman.setEnvironmentVariable("svc_optn_optn_name", job4_name);
}

const data = JSON.parse(responseBody);
data.forEach(item => {
console.log(item.id); // deliver object id.
item.options.forEach(option => {
console.log(`Option Id ${option.id}`); // option id
postman.setEnvironmentVariable("service_id", option.id);
option.options(optionItem => {
if(optionItem.name == 'Toothbrush'){
postman.setEnvironmentVariable("svc_optn_optn_name", optionItem.name);
postman.setEnvironmentVariable("svc_optn_optn_id", optionItem.id);
}
});
});
});

Javascript strange behavior in Json Object Manipulation

I really can't get my hand around what is happening there and I really think that I should share this with you guys:
I am making a call to my api at '/products' and the response looks something like this in postman:
[
{
"id": 2,
"name": "some_product_name",
"description": "description",
"price": "$120.00",
"firmware_version": "1.0",
"quantity_in_stock": 50,
"selling": true,
"build_version": "1.2",
"category_id": 1,
"available_colors": [
{
"name": "blue",
"in_stock": true,
"picture": {
"type": "Buffer",
"data": []
}
},
{
"name": "black",
"in_stock": true,
"picture": null
},
{
"name": "silver",
"in_stock": true,
"picture": {
"type": "Buffer",
"data": []
}
}
]
}
]
Now what I am trying to do here is to create a new object called products_showcase that has one entry per product color, with the same informations except for the available_colors property, replaced by the color object:
$scope.initModel = function() {
$http({
method: 'GET',
url: '/products'
}).then(function(resp) {
console.log(resp.data);
$scope.products = resp.data;
$scope.products.forEach((item, index, array) => {
item.available_colors.forEach((color, index, array) => {
var product = item;
product.color = {};
product.color = color;
delete product['available_colors'];
$scope.products_showcase.push(product);
});
});
}, function(error) {
$scope.error = error;
});
};
But then, something really strange is happening:
The available_colors property gets deleted also in the response object, that I did not touch in the code in any way.
The color property gets added to the response object too.
The products_showcase is an array containing the same object 3 times with the color property equal to the firs color of the $scope.products.available_colors object i am iterating through

Javascript won't create new object when you assign it to a variable. You can use Object.create function to create a new object
from existing one.
$scope.initModel = function() {
$http({
method: 'GET',
url: '/products'
}).then(function(resp) {
console.log(resp.data);
$scope.products = Object.create(resp.data);
$scope.products.forEach((item, index, array) => {
item.available_colors.forEach((color, index, array) => {
var product = Object.create(item);
product.color = {};
product.color = color;
delete product['available_colors'];
$scope.products_showcase.push(product);
});
});
}, function(error) {
$scope.error = error;
});
};

Javascript assignment operator doesn't apparently create a new instance of the object for the new variable, it simply creates a pointer to the memory address of the 'father' object.
Example code:
var object = {property: 'myProp'};
console.log(object);
{property: 'myProp'}
var newObj = object;
newObj.newProperty = 'myNewProp';
console.log(object);
{property: 'myProp', newProperty: 'myNewProp'}
To create a new instance of the object we have to use the Object.create() method.

Convert CSV file to JSON dictionary?

I need to convert a large CSV data set to JSON, however the output should be a JSON dictionary like this:
var products = {
"crystal": {
"description": "This is a crystal",
"price": "2.95"
},
"emerald": {
"description": "This is a emerald",
"price": "5.95"
}
};
This is what the CSV table would look like:
I am using a script referenced here to generate the JSON:
var csv = require('csv')
var fs = require('fs')
var f = fs.createReadStream('Fielding.csv')
var w = fs.createWriteStream('out.txt')
w.write('[');
csv()
.from.stream(f, {columns:true})
.transform(function(row, index) {
return (index === 0 ? '' : ',\n') + JSON.stringify(row);
})
.to.stream(w, {columns: true, end: false})
.on('end', function() {
w.write(']');
w.end();
});
However the output from that script is created in this format:
[
{
"name": "crystal",
"description": "This is a crystal",
"price": "2.95"
},
{
"name": "emerald",
"description": "This is a emerald",
"price": "5.95"
}
]
How would I modify the script to get my desired "dictionary" format?

All you need to do is loop over the array and use item.name as key for your dictionary object
var products ={};
data.forEach(function(item){
products[item.name] = item;
});
This will leave the name property in the item but that shouldn't be an issue

I found csv parser library most useful:
var csvText=`status,path,name,ext,checksum,size,document_service_id,document_service_path,message
success,./15-02-2017_17-11/d77c7886-ffe9-40f2-b2fe-e68410d07891//expE1.txt,expE1.txt,txt,38441337865069eabae7754b29bb43e1,414984,8269f7e3-3221-49bb-bb5a-5796cf208fd1,/neuroinftest/20170215/expE1.txt,
success,./15-02-2017_17-11/d77c7886-ffe9-40f2-b2fe-e68410d07891//expE10.txt,expE10.txt,txt,f27e46979035706eb0aaf58c26e09585,368573,2c94ed19-29c9-4660-83cf-c2148c3d6f61,/neuroinftest/20170215/expE10.txt,
success,./15-02-2017_17-11/d77c7886-ffe9-40f2-b2fe-e68410d07891//expE2.txt,expE2.txt,txt,e1040d9546423c823944120de0e5c46c,333308,b3898f5d-1058-4cf3-acf9-76759117b810,/neuroinftest/20170215/expE2.txt,
`
var csv = require('csv');
csv.parse(csvText, {columns: true}, function(err, data){
console.log(JSON.stringify(data, null, 2));
});
In variable csvText I have my comma-separated file, with the first line serving as a header. I use the parse function and I'm passing the {columns: true} to indicated that the first line has the headers. Second parameter in the callback function (data) has the object with keys being the headers and the values being the corresponding csv cells. I use JSON.stringify to print it nicely and the result object looks like this (it puts it into an array):
[
{
"status": "success",
"path": "./15-02-2017_17-11/d77c7886-ffe9-40f2-b2fe-e68410d07891//expE1.txt",
"name": "expE1.txt",
"ext": "txt",
"checksum": "38441337865069eabae7754b29bb43e1",
"size": "414984",
"document_service_id": "8269f7e3-3221-49bb-bb5a-5796cf208fd1",
"document_service_path": "/neuroinftest/20170215/expE1.txt",
"message": ""
},
{
"status": "success",
"path": "./15-02-2017_17-11/d77c7886-ffe9-40f2-b2fe-e68410d07891//expE10.txt",
"name": "expE10.txt",
"ext": "txt",
"checksum": "f27e46979035706eb0aaf58c26e09585",
"size": "368573",
"document_service_id": "2c94ed19-29c9-4660-83cf-c2148c3d6f61",
"document_service_path": "/neuroinftest/20170215/expE10.txt",
"message": ""
},
{
"status": "success",
"path": "./15-02-2017_17-11/d77c7886-ffe9-40f2-b2fe-e68410d07891//expE2.txt",
"name": "expE2.txt",
"ext": "txt",
"checksum": "e1040d9546423c823944120de0e5c46c",
"size": "333308",
"document_service_id": "b3898f5d-1058-4cf3-acf9-76759117b810",
"document_service_path": "/neuroinftest/20170215/expE2.txt",
"message": ""
}
]
UPD: This array can easily be turned into the object you need with reduce:
var res_obj = data.reduce(function(acc, cur, i) {
acc[cur.name] = cur;
return acc;
}, {});
In my case I use the name property as a key. Make sure it's unique.

I think something like this would work :
var products_arr = [{"name":"crystal","description":"This is a crystal","price":"2.95"},
{"name":"emerald","description":"This is a emerald","price":"5.95"}]
var products = {};
for (var i = 0, l = products_arr.length ; i < l ; ++i) {
var x = products_arr[i];
var name = x.name
delete x.name; // deletes name property from JSON object
products[name] = x;
}
This will output :
{
"crystal": {
"description": "This is a crystal",
"price": "2.95"
},
"emerald": {
"description": "This is a emerald",
"price": "5.95"
}
}

If you would like to modify your specific code, you could change the line
return (index === 0 ? '' : ',\n') + JSON.stringify(row);
to
var clonedRow = JSON.parse(JSON.stringify(row));
var key = clonedRow['name'];
delete clonedRow['name'];
var newRow = {};
newRow[key] = clonedRow;
return (index === 0 ? '' : ',\n') + JSON.stringify(newRow);
This creates a new object for each row, modifying the structure according to your requirement.

Your best bet is to use PapaParse, a powerful csv parser/dumper. It supports streams, various string encodings, header row, and it's fast.

JSON data transformation from table-like format to JSON?

I have data that's in this format:
{
"columns": [
{
"values": [
{
"data": [
"Project Name",
"Owner",
"Creation Date",
"Completed Tasks"
]
}
]
}
],
"rows": [
{
"values": [
{
"data": [
"My Project 1",
"Franklin",
"7/1/2015",
"387"
]
}
]
},
{
"values": [
{
"data": [
"My Project 2",
"Beth",
"7/12/2015",
"402"
]
}
]
}
]
}
Is there some super short/easy way I can format it like so:
{
"projects": [
{
"projectName": "My Project 1",
"owner": "Franklin",
"creationDate": "7/1/2015",
"completedTasks": "387"
},
{
"projectName": "My Project 2",
"owner": "Beth",
"creationDate": "7/12/2015",
"completedTasks": "402"
}
]
}
I've already got the column name translation code:
r = s.replace(/\%/g, 'Perc')
.replace(/^[0-9A-Z]/g, function (x) {
return x.toLowerCase();
}).replace(/[\(\)\s]/g, '');
Before I dive into this with a bunch of forEach loops, I was wondering if there was a super quick way to transform this. I'm open to using libraries such as Underscore.

function translate(str) {
return str.replace(/\%/g, 'Perc')
.replace(/^[0-9A-Z]/g, function (x) {
return x.toLowerCase();
})
.replace(/[\(\)\s]/g, '');
}
function newFormat(obj) {
// grab the column names
var colNames = obj.columns[0].values[0].data;
// create a new temporary array
var out = [];
var rows = obj.rows;
// loop over the rows
rows.forEach(function (row) {
var record = row.values[0].data;
// create a new object, loop over the existing array elements
// and add them to the object using the column names as keys
var newRec = {};
for (var i = 0, l = record.length; i < l; i++) {
newRec[translate(colNames[i])] = record[i];
}
// push the new object to the array
out.push(newRec);
});
// return the final object
return { projects: out };
}
DEMO

There is no easy way, and this is really not that complex of an operation, even using for loops. I don't know why you would want to use regex to do this.
I would start with reading out the column values into a numerically indexed array.
So something like:
var sourceData = JSON.parse(yourJSONstring);
var columns = sourceData.columns[0].values[0].data;
Now you have a convenient way to start building your desired object. You can use the columns array created above to provide property key labels in your final object.
var sourceRows = sourceData.rows;
var finalData = {
"projects": []
};
// iterate through rows and write to object
for (i = 0; i < sourceRows.length; i++) {
var sourceRow = sourceRows[i].values.data;
// load data from row in finalData object
for (j = 0; j < sourceRow.length; j++) {
finalData.projects[i][columns[j]] = sourceRow[j];
}
}
That should do the trick for you.

How to bind an array to a ListView

I know how to parse with Json and bind a file like this to a listview:
[
{
"key": "Arthur Schopenhauer",
"numeroFrasi": 3,
"foto" : "images/TEST.jpg",
},
{
"key": "Nietzsche",
"numeroFrasi": 1,
"foto" : "images/TEST.jpg",
},
.........
But I can't understand nor find on Web how to bind just every "frasi" (that is an array) in a file like this:
[
{
"key": "Arthur Schopenhauer",
"numeroFrasi": 3,
"foto" : "images/TEST.jpg",
"frasi": [
"Fras1",
"Frase 2 schopenahuer",
"Frase 3 schopenhahuer"
]
},
{
"key": "Nietzsche",
"numeroFrasi": 1,
"foto" : "images/TEST.jpg",
"frasi": [
"Frase 2 nietzsche",
"Frase 3 nietzsche"
]
},
...............
My Object isn't an array, but it is definied like this form a txt file parsed with Json:
This is the generic definition:
(function () {
"use strict";
var list = new WinJS.Binding.List();
var groupedItems = list.createGrouped(
function groupKeySelector(item) { return item.group.key; },
function groupDataSelector(item) { return item.group; }
);
WinJS.xhr({ url: "/data/frasi.txt" }).then(function (xhr) {
var items = JSON.parse(xhr.responseText);
// Add the items to the WinJS.Binding.List
items.forEach(function (item) {
list.push(item);
});
});
Then this is the specific definition (because when I navigate to my page, I select just an "item", so only one "key, "numeriFrasi", "foto", "frasi":
WinJS.UI.Pages.define("/pages/itemDetail/itemDetail.html", {
ready: function (element, options) {
item = options && options.item ? Data.resolveItemReference(options.item) : Data.items.getAt(0);
"resolveItemReference" gets one item from all the items created

Strip out frasis to an Array first. You can use underscore.js
frasis = YOUROBJECT.map(function(el){return el.frasi;});
frasis = _(frasis).faltten();
Then use it to build your ListView