php json decode exception when send data using cURL-CodePudding

I am using laravel as a server API backEnd but when clients send request using cURL I got the following json decode exception

JSON_ERROR_SYNTAX

here is the code of client

      $data = [ "items"=>array(
        "order_reference"=> "123412",
          "mode" =>"payment",
            "products" => [array(
            "id"=> 1,
            "product_name"=> "product 1",
            "quantity"=>1,
            "unit_amount"=> 100)
            ]
            
            , "currency"=>"YER",
            "total_amount"=>1500,
            "success_url"=> "https://company.com/success",
            "cancel_url"=> "https://company.com/cancel",
            "metadata"=>[
            "Customer name"=> "somename",
            "order id"=> 0 ]
           
    )];




    $curl = curl_init();

    curl_setopt_array($curl, array(
        CURLOPT_URL => "https://example.com/api/order",
        CURLOPT_RETURNTRANSFER => true,
        CURLOPT_ENCODING => "",
        CURLOPT_MAXREDIRS => 10,
        CURLOPT_TIMEOUT => 30000,
        CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
        CURLOPT_CUSTOMREQUEST => "POST",
        CURLOPT_POSTFIELDS => json_encode($data),
        
        CURLOPT_HTTPHEADER => array(
           "private-key: rRQ26GcsZzoEhbrP2HZvLYDbn9C9et",
            "public-key: HGvTMLDssJghr9tlN9gr4DVYt0qyBy",
            
        ),
    ));
    
    $response = curl_exec($curl);

and this is the code of API backEnd

json_decode($request->items,true);

and the result of the code is

JSON_ERROR_SYNTAX

CodePudding user response：

It should be json_decode($response->items,true);

CodePudding user response：

Add this header

Content-Type: application/json

to your client code in this manner:

CURLOPT_HTTPHEADER => array(
       "private-key: rRQ26GcsZzoEhbrP2HZvLYDbn9C9et",
        "public-key: HGvTMLDssJghr9tlN9gr4DVYt0qyBy",
        "Content-Type: application/json"
    )

then laravel will automatically decode in the backend and you don't need to use json_decode. You can simply use $request->items to access to the client's items.