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How do I refer to this JSON Object Data?

I want to reference my Strapi database to my Next.JS Frontend. How can I reference a JSON data if it is also an object within the object?
As an example, to access the name, I use {activity.name}. How can I access the providerName?
I tried {activity.provider.providerName} but it is not working. What am I doing wrong?
[
{
"id": 1,
"name": "Bowling in Mundsburg",
"activityType": "Bowling",
"profileType": "Basic",
"adventureType": "Activity",
"slug": "bowling-in-new-york",
"provider": {
"id": 1,
"providerName": "Bowlingcenter New York",
"slug": "bowlingcenter-new-york",
"published_at": "2021-09-26T12:06:12.670Z",
"created_at": "2021-09-26T12:04:28.585Z",
"updated_at": "2021-09-26T12:06:12.690Z"
},
...
]

could you try like so?
const strapiRes = [
{
"id": 1,
"name": "Bowling in Mundsburg",
"activityType": "Bowling",
"profileType": "Basic",
"adventureType": "Activity",
"slug": "bowling-in-new-york",
"provider": {
"id": 1,
"providerName": "Bowlingcenter New York",
"slug": "bowlingcenter-new-york",
"published_at": "2021-09-26T12:06:12.670Z",
"created_at": "2021-09-26T12:04:28.585Z",
"updated_at": "2021-09-26T12:06:12.690Z"
}
}
];
const whatYouAreAskingFor = strapiRes[0].provider.providerName
also if you are looping try something like:
strapiRes.map(activity => activity.provider.providerName)

Accessing a specific key in JSON?

I'm trying to access the "title" section (key?) of this JSON object using NodeJS. I can return the entire object, but every time I try to access the key, undefined is returned.
[
[
{
"id": 119,
"title": "Roadhouse",
"url": "https://funsite.com/2021/03/20/funny/",
"date": "2021-03-20"
}
],
[
{
"id": 208,
"title": "New Sites",
"url": "https://coolsitestuff.com/notes/coolsite/",
"date": "2021-03-17"
}
],
[
{
"id": 13,
"title": "woah sites!!",
"url": "https://now.lettuce.com/then/2021-0000/",
"date": "2021-03-07"
}
],
[
{
"id": 120,
"title": "mynewalbumn",
"url": "https://notarealsite.com/2021/03/06/next-album/",
"date": "2021-03-06"
}
],
[
{
"id": 140,
"title": "fightingthemans",
"url": "http://fightcats.com/2021/03/06/keyfights",
"date": "2021-03-06"
}
],
[
{
"id": 14,
"title": "biggest lettuce youll ever see",
"url": "https://morelettuce.com/then/biggestlettuceleaf/",
"date": "2021-02-28"
}
]
]
NodeJS
const fs = require('fs')
fs.readFile('./data/links.json', 'utf8', (err, fsToString) => {
let data = JSON.parse(fsToString);
console.log(data.map(link => link[link.url]))
})
I've tried for loops and indexing that way but I haven't been able to get anything out of it.

You have 2 arrays, either loop over both of them or access it using index
let data =[
[
{
"id": 119,
"title": "Roadhouse",
"url": "https://funsite.com/2021/03/20/funny/",
"date": "2021-03-20"
}
],
[
{
"id": 208,
"title": "New Sites",
"url": "https://coolsitestuff.com/notes/coolsite/",
"date": "2021-03-17"
}
]
]
data.map(link=> console.log(link[0].url))

Your json is array of array objects, you need to access all arrays by index, you can use flatMap and map methods.
var data = [
[{
"id": 119,
"title": "Roadhouse",
"url": "https://funsite.com/2021/03/20/funny/",
"date": "2021-03-20"
}],
[{
"id": 208,
"title": "New Sites",
"url": "https://coolsitestuff.com/notes/coolsite/",
"date": "2021-03-17"
}],
[{
"id": 13,
"title": "woah sites!!",
"url": "https://now.lettuce.com/then/2021-0000/",
"date": "2021-03-07"
}],
[{
"id": 120,
"title": "mynewalbumn",
"url": "https://notarealsite.com/2021/03/06/next-album/",
"date": "2021-03-06"
}],
[{
"id": 140,
"title": "fightingthemans",
"url": "http://fightcats.com/2021/03/06/keyfights",
"date": "2021-03-06"
}],
[{
"id": 14,
"title": "biggest lettuce youll ever see",
"url": "https://morelettuce.com/then/biggestlettuceleaf/",
"date": "2021-02-28"
}]
];
console.log(data.flatMap(i=>i.map(f=>f.url)))

Your current code is trying to access an undefined object property.
Solution:
Replace the link[link.url] for link[0].url. So that the full line is
console.log(data.map(link => link[0].url))
Or if you want the titles:
console.log(data.map(link => link[0].title))

console.log(
data.flat().map(link=>link.url)
);
console.log(
data.map(item=>item[0].url)
);

From what I see your JSON file holds an array of arrays and each nested array contains one object. Therefore data.map(link => link[0].title) should return array of titles

You have an array of arrays and each one with just one position. For the code you posted you're just missing the index of each element.
If you change your code to this you'll get the array with the URL's you're looking for
fs.readFile('./example.json', 'utf8', (err, fsToString) => {
let data = JSON.parse(fsToString);
console.log(data.map(link => link[0].url))
})
Happy coding ;)!

Sorting Arrays creating key value pairs from multiple sources

I have a large JSON array that I want to use to create key value pairs, combining 3 integers as one pair item and another integer for the second pair item.
I am a begginer in coding so looking for some good advice along the way. The purpose of the code is to integrate in to my automation setup.
Im trying to put showid, season and episode as one combined integer and the episodeid and the key value pair.
So for the example below :
newarray = [{7.2.1 : 272, 7.2.2 : 273}]
2 objects within the array are as follows :
[
{
"episodes": [
{
"art": {
"season.banner": "image://.jpg/",
"season.poster": "image://.jpg/",
"season.thumb": "image:.tbn/",
"tvshow.banner": ".jpg/",
"tvshow.fanart": "image:jpg/",
"tvshow.poster": "image:jpg/"
},
"episode": 1,
"episodeid": 272,
"file": "test.avi",
"label": "test1",
"originaltitle": "",
"playcount": 0,
"plot": Hello World",
"rating": 8,
"season": 2,
"thumbnail": "image.tbn/",
"title": "test1",
"tvshowid": 7
},
{
"art": {
"season.banner": "image://.jpg/",
"season.poster": "image://.jpg/",
"season.thumb": "image:.tbn/",
"tvshow.banner": ".jpg/",
"tvshow.fanart": "image:jpg/",
"tvshow.poster": "image:jpg/"
},
"episode": 2,
"episodeid": 273,
"file": "test1.avi",
"label": "test1",
"originaltitle": "",
"playcount": 0,
"plot": Hello World",
"rating": 8,
"season": 2,
"thumbnail": "image1.tbn/",
"title": "test2",
"tvshowid": 7
},
]
I have tried to sort using push but its too basic for my needs. Can anyone help?

You can simply map over each show, then map over each episode, then use a template string to create the key of each object:
shows = [{
"episodes": [
{"episode": 1, "episodeid": 272, "season": 2, "tvshowid": 7 },
{"episode": 2, "episodeid": 273, "season": 2, "tvshowid": 7 }
]
}]
const mapped = shows.map(show => show.episodes.map(o => ({
[`${o.tvshowid}.${o.season}.${o.episode}`]: o.episodeid
})))
console.log(mapped)

You can use a reducer to get the an array of relations:
const collection =
{
"episodes": [
{
"art": {
"season.banner": "image://.jpg/",
"season.poster": "image://.jpg/",
"season.thumb": "image:.tbn/",
"tvshow.banner": ".jpg/",
"tvshow.fanart": "image:jpg/",
"tvshow.poster": "image:jpg/"
},
"episode": 1,
"episodeid": 272,
"file": "test.avi",
"label": "test1",
"originaltitle": "",
"playcount": 0,
"plot": "Hello World",
"rating": 8,
"season": 2,
"thumbnail": "image.tbn/",
"title": "test1",
"tvshowid": 7
},
{
"art": {
"season.banner": "image://.jpg/",
"season.poster": "image://.jpg/",
"season.thumb": "image:.tbn/",
"tvshow.banner": ".jpg/",
"tvshow.fanart": "image:jpg/",
"tvshow.poster": "image:jpg/"
},
"episode": 2,
"episodeid": 273,
"file": "test1.avi",
"label": "test1",
"originaltitle": "",
"playcount": 0,
"plot": "Hello World",
"rating": 8,
"season": 2,
"thumbnail": "image1.tbn/",
"title": "test2",
"tvshowid": 7
},
]
}
relations = collection.episodes.reduce((acc, curr) => {
const relation = {[curr.tvshowid + '.' + curr.season + '.' + curr.episode]: curr.episodeid}
acc = [...acc,relation];
return acc;
},[])
console.log(relations)

You could use map for creating a new array.
var newarray = oShows.episodes.map( function(o){
return {[o.tvshowid + "." + o.season + "." + o.episode] : o.episodeid};
});
console.log(newarray); //[{7.2.1: 272}, {7.2.2: 273}]
Im trying to put showid, season and episode as one combined integer...
That's not possible because e.g. "7.2.1" is no integer. Your key will be a string.

how to remove this object from array inside of object in array?

I am not sure how to form this question, but I will do my best.
I don't know how to remove object by _id from 'list:' part.
So, I have one array, and inside of that array I have list of objects,inside of these objects I have again array with objects, so I want to remove one object from that last array, how I can do that?
Cannot fix it for 2 days, I'm stucked!
Thanks!
[
{
"_id": "599a1344bf50847b0972a465",
"title": "British Virgin Islands BC",
"list": [],
"price": "1350"
},
{
"_id": "599a1322bf50847b0972a38e",
"title": "USA (Nevada) LLC",
"list": [
{
"_id": "599a1322bf50847b0972a384",
"title": "Nominee Member",
"service": "nominee-service",
"price": "300"
},
{
"_id": "599a1322bf50847b0972a385",
"title": "Nominee Manager & General Power of Attorney (Apostilled)",
"service": "nominee-service",
"price": "650"
},
{
"_id": "599a1322bf50847b0972a386",
"title": "Special Power of Attorney",
"service": "nominee-service",
"price": "290"
}
],
"price": "789"
},
{
"_id": "599a12fdbf50847b0972a2ad",
"title": "Cyprus LTD",
"list": [
{
"_id": "599a12fdbf50847b0972a2a5",
"title": "Nominee Shareholder",
"service": "nominee-service",
"price": "370"
},
{
"_id": "599a12fdbf50847b0972a2a6",
"title": "Nominee Director & General Power or Attorney (Apostilled)",
"service": "nominee-service",
"price": "720"
},
{
"_id": "599a12fdbf50847b0972a2ab",
"title": "Extra Rubber Stamp",
"service": "other-service",
"price": "40"
}
],
"price": "1290"
}
]

Using Vanilla JS:
function findAndRemove(data, id) {
data.forEach(function(obj) { // Loop through each object in outer array
obj.list = obj.list.filter(function(o) { // Filter out the object with unwanted id, in inner array
return o._id != id;
});
});
}
var data = [{
"_id": "599a1344bf50847b0972a465",
"title": "British Virgin Islands BC",
"list": [],
"price": "1350"
},
{
"_id": "599a1322bf50847b0972a38e",
"title": "USA (Nevada) LLC",
"list": [{
"_id": "599a1322bf50847b0972a384",
"title": "Nominee Member",
"service": "nominee-service",
"price": "300"
},
{
"_id": "599a1322bf50847b0972a385",
"title": "Nominee Manager & General Power of Attorney (Apostilled)",
"service": "nominee-service",
"price": "650"
},
{
"_id": "599a1322bf50847b0972a386",
"title": "Special Power of Attorney",
"service": "nominee-service",
"price": "290"
}
],
"price": "789"
},
{
"_id": "599a12fdbf50847b0972a2ad",
"title": "Cyprus LTD",
"list": [{
"_id": "599a12fdbf50847b0972a2a5",
"title": "Nominee Shareholder",
"service": "nominee-service",
"price": "370"
},
{
"_id": "599a12fdbf50847b0972a2a6",
"title": "Nominee Director & General Power or Attorney (Apostilled)",
"service": "nominee-service",
"price": "720"
},
{
"_id": "599a12fdbf50847b0972a2ab",
"title": "Extra Rubber Stamp",
"service": "other-service",
"price": "40"
}
],
"price": "1290"
}
];
// Empty almost all of list, except middle one
findAndRemove(data, "599a1322bf50847b0972a384");
findAndRemove(data, "599a1322bf50847b0972a386");
findAndRemove(data, "599a12fdbf50847b0972a2a5");
findAndRemove(data, "599a12fdbf50847b0972a2a6");
findAndRemove(data, "599a12fdbf50847b0972a2ab");
console.log(data);
Cleared everything except middle list, just for better visualization.

#Abhijit Kar your one is working perfectly, thanks mate!
How I can later splice this list?
When I was working with objects from first array, I did it like this :
var inventory = jsonArrayList;
for (var i = 0; i < inventory.length; i++) {
if (inventory[i]._id == deleteProductById) {
vm.items.splice(i, 1);
break;
}
}
It would be very helpful, thanks alot!

You can use Array.map and Array.filter to accomplish this. Detailed explanation in comments:
PS: This snippet uses ES6 arrow functions and spread operator
function removeById(arr, id) {
// Array.map iterates over each item in the array,
// and executes the given function on the item.
// It returns an array of all the items returned by the function.
return arr.map(obj => {
// Return the same object, if the list is empty / null / undefined
if (!obj.list || !obj.list.length) return obj;
// Get a new list, skipping the item with the spedified id
const newList = obj.list.filter(val => val._id !== id);
// map function returns the new object with the filtered list
return { ...obj, list: newList };
});
}
const oldArray = <YOUR_ORIGINAL_ARRAY>;
const newArray = removeById(arr, "599a12fdbf50847b0972a2a5");

Checking a value in a nested JSON using Postman

I have a nested JSON returned from an API that I am hitting using a GET request, in POSTMAN chrome app. My JSON looks like this
"result": [
{
"_id": "some_id",
"name": "India",
"code": "IN",
"link": "http://www.india.info/",
"closingTime": "2017-02-25T01:12:17.860Z",
"openingTime": "2017-02-25T06:12:17.205Z",
"image": "image_link",
"status": "online",
"serverStatus": "online",
"games": [
{
"_id": "some_game_id1",
"name": "Cricket"
},
{
"_id": "some_another_id1",
"name": "Baseball"
},
{
"_id": "some_another_id_2",
"name": "Basketball"
}
]
},
{
"_id": "some_id",
"name": "Australia",
"code": "AUS",
"link": "https://www.lonelyplanet.com/aus/adelaide",
"closingTime": "2017-02-28T05:13:38.022Z",
"openingTime": "2017-02-28T05:13:38.682Z",
"image": "some_image_url",
"status": "offline",
"serverStatus": "online",
"games": [
{
"_id": "some_game_id_2",
"name": "Cricket"
},
{
"_id": "some_another_id_3",
"name": "Kho-Kho"
},
{
"_id": "some_another_id_4",
"name": "Badminton"
},
{
"_id": "some_another_id_5",
"name": "Tennis"
}
]
},
I am trying to test whether my response body has "name":"India" and the "game" with "some_game_id1" contains the "name":"cricket".
I went through this link where the answer is to have an array for "name"created and then check within the array whether the array contains the value. I tried this but my code fails.
Also, I tried searching the element by the index within the JSON body using this -
var searchJSON = JSON.parse(responseBody);
tests["name contains India"] = searchJSON.result.name[0]==="India";
But this also fails. I tried using the .value appended with the second line of above code, but it also fails. How can I check this thing?

You need to put [0] after result (which is an array) rather than name (which is a string).
Also, use a regular expression to check whether the name contains 'India', because using === only checks if the name is exactly India.
var searchJSON = JSON.parse(responseBody)
tests["name contains India"] = /India/.test(searchJSON.result[0].name)
Demo Snippet:
var responseBody = `{
"result": [{
"_id": "some_id",
"name": "India",
"code": "IN",
"link": "http://www.india.info/",
"closingTime": "2017-02-25T01:12:17.860Z",
"openingTime": "2017-02-25T06:12:17.205Z",
"image": "image_link",
"status": "online",
"serverStatus": "online",
"games": [{
"_id": "some_game_id1",
"name": "Cricket"
},
{
"_id": "some_another_id1",
"name": "Baseball"
},
{
"_id": "some_another_id_2",
"name": "Basketball"
}
]
},
{
"_id": "some_id",
"name": "Australia",
"code": "AUS",
"link": "https://www.lonelyplanet.com/aus/adelaide",
"closingTime": "2017-02-28T05:13:38.022Z",
"openingTime": "2017-02-28T05:13:38.682Z",
"image": "some_image_url",
"status": "offline",
"serverStatus": "online",
"games": [{
"_id": "some_game_id_2",
"name": "Cricket"
},
{
"_id": "some_another_id_3",
"name": "Kho-Kho"
},
{
"_id": "some_another_id_4",
"name": "Badminton"
},
{
"_id": "some_another_id_5",
"name": "Tennis"
}
]
}
]
}`
var tests = {}
var searchJSON = JSON.parse(responseBody)
tests["name contains India"] = /India/.test(searchJSON.result[0].name)
console.log(tests) //=> { "name contains India": true }