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Is there a way to search for keywords across multiple collections in MongoDB?

MongoDB Atlas Cluster version: 5.0.12
MERN Stack Application
Simple Search App that returns Specific ads when keywords are typed in an input.
Front end is handled by React-Redux.
And I am using Axios to request my server for data.
Server is using Mongo's aggregate pipeline function to search for text using $search,
and then a few different operators to fetch data from another collection.
There are two collections, the main one has a foreign key that references the second one.
Here is a sample json of both the collections
ads: {
_id: 1,
companyId: 1,
primaryText: "",
description: "",
CTA: "Sign Up",
imageUrl: "",
heading: "",
}
companies: {
_id: 1,
name: "Levi's",
url: "",
}
This is the search index that I have been using to look for keywords in the collection.
{
"mappings": {
"dynamic": true,
"fields": {
"company": {
"fields": {
"name": [
{
"dynamic": true,
"type": "document"
},
{
"type": "string"
}
]
},
"type": "document"
},
"description": [
{
"dynamic": true,
"type": "document"
},
{
"type": "string"
}
],
"heading": [
{
"dynamic": true,
"type": "document"
},
{
"type": "string"
}
],
"primaryText": [
{
"dynamic": true,
"type": "document"
},
{
"type": "string"
}
]
}
}
}
Mongo doesn't let me query $search anywhere in the pipeline except as the first operation.
So the order that works is this
$seach --> $lookup --> $project --> $unwind
This works but the only problem is that when I try to search for keyword that is present in the companies collection, like name: "Levi's", it doesn't respond with the corresponding ad.
So, In short I am trying to find a way to apply $search on a collection that has the gone through a $lookup.
Thank you, and I appreciate you spending time reading this.

Merge a Product Config JSON with Generic Config JSON- Issue While Merging Arrays inside it

I have 2 different Json files
1: a Deaflut JSON file
2: A Product Based JSON file
I need to merge them together in such a way that if a feature in default is not in a product that needs to be added to product config from default one.
for this merge, I used "lodash.mergewith" https://www.npmjs.com/package/lodash.mergewith.
so this is now taking care of the merge, But the file contains multiple nested JSON arrays inside it.
to handle that there is an option to use a customizer method that can handle array merge as mentioned in the usage of lodash.mergewith. I need a customizer that can find the Label from Deaflut and compare it with the Product if the Product has the same Label value then replace the URL with the Product URL. else if the Label is not in Product config, then use it from default as it is.
Example
Default config.json:-links is an array of this json with path : object►login►options►sections►2►links
"links": [{
"url": "www.google.com",
"label": "Lable1"
},
{
"url": "www.google.com",
"label": "Label2"
},
{
"url": "www.google.com",
"label": "Label3"
},
{
"url": "www.google.com",
"label": "Label4"
}
]
Productconfig.json:- links is an array inside this of the path: object►login►options►sections►2►links
"links": [{
"url": "www.product1.com",
"label": "label1"
},
{
"url": "www.product2.com",
"label": "Label2"
}
]
** after merge mergedconfig.json "Links" need to be like this.**
"links": [{
"url": "www.product1.com",
"label": "Label1"
},
{
"url": "www.product2.com",
"label": "Label2"
},
{
"url": "www.google.com",
"label": "Label3"
},
{
"url": "www.google.com",
"label": "Label4"
}
]
The main concern is this Array is coming inside a JSON file inside some JSON objects
like eg if the Array is inside links[] it will be in a path like : object►login►options►sections►2►links[]. and this Links Array similarly present inside in some other paths eg: object►register►options►sections►2►links[]
So I need to figure out all the Array like this and for each of the Arrays, I need to perform this action.

Just use Array.map and Array.find:
let links= [
{
"url": "www.google.com",
"label": "Label1"
},
{
"url": "www.google.com",
"label": "Label2"
},
{
"url": "www.google.com",
"label": "Label3"
},
{
"url": "www.google.com",
"label": "Label4"
}
];
let plinks= [{
"url": "www.product1.com",
"label": "label1"
},
{
"url": "www.product2.com",
"label": "Label2"
}
];
let results = links.map(lnk=>{
plnk = plinks.find(pl=>pl.label.toLowerCase()===lnk.label.toLowerCase());
return plnk || lnk
});
console.log(results);
for clean access to nested JSON keys you can use ES like this:
let a = {
b: {
c: [1,2,3]
}
};
let {c} = a?.b;
console.log(c);

Ember Difference between Restadapter vs Jsonapiadapter

Ember uses Restadapter & Jsonapiadapter for the adapters.
What are the exact differences between the 2 in terms of data formats for request/response ?
Any other things we need to ensure when using any of these 2.

The JSONAPIAdapter conforms to the JSONApi spec
Use RESTAdapter when you have an JSON API that follows a REST endpoint with pluralized object names and has a root node using the name of the object being returned.
Examples below:
Example JSONAPI spec object:
{
"data": [{
"type": "articles",
"id": "1",
"attributes": {
"title": "JSON API paints my bikeshed!"
},
"relationships": {
"author": {
"links": {
"self": "http://example.com/articles/1/relationships/author",
"related": "http://example.com/articles/1/author"
},
"data": { "type": "people", "id": "7" }
}
},
}],
"included": [{
"type": "people",
"id": "7",
"attributes": {
"name": "Dave",
"twitter": "kiwiupover"
}
}]
}
Example Rest json api object:
{
"posts": {
"id": 5,
"title": "An API that gets bikeshed for months ",
"author": "kiwiupover",
"comments": [1]
},
"comments": [{
"id": 1,
"name": "Dave",
}]
}
Ember Data provides straightforward methods for adapting your DS.adapter to your specific JSON API shape.
There is a third adapter from which the previously mentioned adapters are extended from.

How to retrieve linked fields in Contentful query

I'm using Contentful and have a content model which uses a series of related fields. I am querying my content in NodeJS using the JS api. If I call get entries, like so
contentfulClient.getEntries({
content_type: 'homePage'
})
it fetches all the content of type homePage, and includes the actual field data for each related field, like so
"subField": {
"sys": {
"space": {
"sys": {
"type": "Link",
"linkType": "Space",
"id": "#######"
}
},
"id": "#######",
"type": "Entry",
"createdAt": "2017-03-10T15:58:25.697Z",
"updatedAt": "2017-03-10T15:58:25.697Z",
"revision": 1,
"contentType": {
"sys": {
"type": "Link",
"linkType": "ContentType",
"id": "homeSubField"
}
},
"locale": "en-GB"
},
"fields": {
"category": {
"sys": {
"type": "Link",
"linkType": "Entry",
"id": "#######"
}
},
"subFieldContent": "Some field content"
}
},
However, if I call a specific entry with an ID, like
contentfulClient.getEntry('1234567890')
Then each linked field is just returned as a reference with an ID, like
"subField": {
"sys": {
"type": "Link",
"linkType": "Entry",
"id": "#######"
}
},
How can I get the full text when calling getEntry, like I do with getEntries?

Unfortunately Contentful does not include referenced content when fetching a content item by id directly. One way around this is to instead use the getEntries method, but filter by sys.id. That way you'll get the same entry back, although in an array, but it will also include referenced content.
contentfulClient.getEntries({
content_type: 'homePage',
sys.id: '1234567890'
})
This also results in a single request instead of multiple as you would end up with when using the GetEntry method and then resolving each referenced content item manually.

Iterate through nested Javascript Objects from API response

I've tried 100 different things, and spend days looking through Google and Stackoverflow, but I can't find a solution to this problem. Everything I call after the body of this API response returns undefined!
The response from Facebook SDK looks like this:
[
{
"body": "[
"data": [
{
"name": "Larry Syid Wright",
"administrator": false,
"id": "xxx"
}, {
"name": "Melissa Long Jackson",
"administrator": false,
"id": "xxx"
}, {
"name": "Charlotte Masson",
"administrator": false,
"id": "xxx"
}
],
"paging": {
"next": "url"
}
]"
},{
"body": "{
"data": [
{
"id": "xxx_xxx",
"message": "In honor of Halloween, how many of you have your own ghost stories? Who believes in ghosts and who doesn't?",
"type": "status",
"created_time": "2014-10-31T20:02:01+0000",
"updated_time": "2014-11-01T02:52:51+0000",
"likes": {
"data": [
{
"id": "xxx",
"name": "Joe HerBatman Owenby Jr."
}
],
}
"paging": {
"cursors":
{
"after": "xxx",
"before": "xxx"
}
}
}
},{
"id": "xxx_xxx",
"from": {
"id": "xxx",
"name": "Jessica Starling"
},
"message": "Watching the "Campaign" and I can't help but notice what a fantastic job they did (Will ferrell and all) with that North Carolina accent! Ya'll know we sound different than other southern states ;)",
"type": "status",
"created_time": "2014-11-01T02:36:21+0000",
"updated_time": "2014-11-01T02:36:21+0000",
"likes": {
"data": [
{
"id": "xxx",
"name": "Scott Williams"n
}
]
}
}
],
"paging": {
"previous": "xxx",
"next": "xxx"
}
}"
}
]
This response is from a batch call. If I call them separately, I can easily iterate through the responses, and get everything from them. When I call them in the batch though, I can't get past "body", and I need to use a batch call.
console.log(response[0].body); will return the object inside the body of the first part of the response, but console.log(response[0].body.data); returns undefined. I just don't get it. This should be simple but it's like there's a lock on the door and I don't have the right key.
I normally have no issue iterating through objects, so I don't need a generalized answer. I need help seeing whatever it is here that I don't see. Why does the console show undefined when I call anything after the body, and what do I need to be doing to get any of these values?

That JSON contains nested JSON. body seems to be a string. Use
var body = JSON.parse(response[0].body);

The values from the body are just strings.which are embedded as json.So firstly you would need to parse them using JSON.parse.
The code would be like
var body = JSON.parse(response[0].body);