How can I rewrite/reformat an array? - php

Question

I am developing an API but I am having a problem connecting it to a payment platform, because they ask for the preference with the following format:
'items' => [
[
'id' => 1,
'title' => 'Product 1',
'description' => 'Some description',
'picture_url' => 'img.png',
'quantity' => 1,
'currency_id' => 'USD',
'unit_price' => 20
],
[
'id' => 2,
'title' => 'Product 2',
'description' => 'Some description',
'picture_url' => 'img.png',
'quantity' => 1,
'currency_id' => 'USD',
'unit_price' => 25
]
]
but I am receiving my data from my items in the cart like this:
'items' => json_encode(new CartItemCollection($items))
And that collection (my collection CartItemCollection) have this format:
{
"Items":[
{
"productID":1,
"inventoryID":1,
"name":"Product 1",
"Quantity":1,
"price":20,
"image":"img.png"
},
{
"productID":2,
"inventoryID":1,
"name":"Product2 "
"Quantity":1,
"price":25,
"image":"img.png"
}
],
"items_count":2,
"products_count":2
}
So I'm sending (which is wrong):
'items' => "Items":[
{
"productID":1,
"inventoryID":1,
"name":"Product 1",
"Quantity":1,
"price":20,
"image":"img.png"
},
{
"productID":2,
"inventoryID":1,
"name":"Product2 "
"Quantity":1,
"price":25,
"image":"img.png"
}
],
"items_count":2,
"products_count":2
How can I rewrite or re format that: json_encode(new CartItemCollection($items)) to get the rigth array?
I kind of need to do this:
foreach (Items) in my collection, do: ProductID (mine) rewrite as id (plataform), Quantity (mine) rewrite as quantity (plataform), price (mine) rewrite as unit_price (plataforms) etc etc..
Thank you in advance :)

Answer 1

According to the official documentation, a different approach could be define another Collection Resource class to customise the response.
return new CustomCartItemCollection($items);
Inside the CustomCarItemCollection.php class:
use Illuminate\Http\Resources\Json\ResourceCollection;
class CustomCarItemCollection extends ResourceCollection
{
public $collects = 'App\Http\Resources\Item';
public function toArray($request)
{
return [
'items' => $this->collection,
];
}
}
<?php
namespace App\Http\Resources;
use Illuminate\Http\Resources\Json\JsonResource;
class Item extends JsonResource
{
public function toArray($request)
{
return [
'id' => $this->ProductID,
'quantity' => $this->Quantity,
'unit_price' => $this->Price,
];
}
}

Answer 2

From the code it seems like you are using Eloquent API resources for your CartItem model.
If that's correct you shouldn't use json_encode, as it would convert your object to a string, but you can try to call directly the toArray method on the CartItemCollection:
'items' => (new CartItemCollection($items))->toArray()['Items']
This code might need a bit of tweaking as you didn't post the CartItemCollection's class code as well as other relevant code you use to generate the structure of the output you are now getting.