not able display data json - json

Question

My data format is :
{
"_id": "593994b7163e6b0011c738cb",
"location_id": "58ec522a99da86001123ec47",
"customer_id": "premiereservices",
"user": {
"phone_num": "8587366808",
"balance": 98.05
},
"cart_total": 3,
"shopping_cart": {
"items": [
{
"barcode": "611269101713",
"description": "Red Bull Sugar Free 8.4oz",
"price": 3,
"taxable": false,
"tax_collected": 0
}
]
},
"Date": "2017-06-08T12:17:27.039Z",
"__v": 0
}
I am not able iterate data from "shopping_cart" and "user" need help on this issue.
Thanks.

Answer 1

to extract data from shopping_cart has items array so you will need a for loop here
For example:
let a = {
"shopping_cart": {
"items": [
{
"barcode": "611269101713",
"description": "Red Bull Sugar Free 8.4oz",
"price": 3,
"taxable": false,
"tax_collected": 0
}
]
}
}
if(a.shopping_cart.items.length) {
for(let i: number = 0; i < a.shopping_cart.items.length; i++) {
console.log(a.shopping_cart.items[i].barcode);
console.log(a.shopping_cart.items[i].description); /* etc you can here */
}
}
to extract data for user
let a = {
"user": {
"phone_num": "8587366808",
"balance": 98.05
},
}
console.log(a['user']['phone_num']) /* etc you can here */

Answer 2

Thanks all for your help.This is working for my requirement.
Here is working code:
import {Component} from 'angular2/core'
#Component({
selector: 'my-app',
template: `
<ul *ngFor="let object of data">
<li>
<ul *ngFor="let value of of ObjectKey(object)"><li> {{value.phone_num}}</li> </ul>
</li>
<li>
<ul *ngFor="let value1 of of ObjectKey(object.shopping_cart.items)"><li> {{value1.barcode}}</li> </ul>
</li>
</ul>
`,
directives: [],
styles: [`
`]
})
export class App {
ObjectKey(obj){
return Object.keys(obj).map((key)=>{ return obj[key]});
}
}

Answer 3

If it is json encoded then decode it pls..
Then
foreach(data.shopping_cart as item)
{
barcode=item[0]["barcode"];
description=item[0]["description"];
}
0 is the index

Answer 4

Create data.model.ts
import { User } from './user.model';
import { ShoppingCart } from './shopping-cart.model';
export class Data {
_id: string;
location_id: string;
customer_id: string;
user: User;
cart_total: number;
shopping_cart: ShoppingCart;
Date: string;
__v: number;
}
Create user.model.ts
export class User {
phone_num: string;
balance: number;
}
Create shopping-cart.model.ts
import { Item } from './item.model';
export class ShoppingCart {
items: Item[];
}
Create item.model.ts
export class Item {
barcode: string;
description: string;
price: number;
taxable: boolean;
tax_collected: number;
}
Then
let str: string = 'your json string';
let data: Data = JSON.parse(str);
console.log(data.user);
data.shopping_cart.items.forEach(item => {
console.log(item);
});

Answer 5

are you using android studio? If so I might be able to help I have been asking similary questions for 2 days now. we need more info but, your first step is probably going to be creating a json array to store the info like "JSONArray arr= new JSONArray(in here put your josn condition object, followed by a .toString() method)