php - View a Json request

From my raspberry, I send a json to Laravel with requests.post method in python. I need to know how I can catch this json in Laravel and displaying it.

Raspberry code that send json

def readFile():
    with open("/home/pi/Desktop/Progetti SIoTD/Bluetooth/device.txt", "r") as file:
        for i in file:
            line, *lines = i.split()
            if line in mac_dict:
                mac_dict[line] += lines
            else:
                mac_dict[line] = lines
    print(mac_dict)
    print("\n")

    json_obj = json.dumps(mac_dict, indent=4) #encode json
    print(json_obj)

    r = requests.post(ip, json=json_obj)
    print(r.text)
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I use the route in api.php with the POST method:

Route::post('dictionary', [DictionaryController::class, 'getDict'])->name('dictionary');
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And the controller is this:

class DictionaryController extends Controller
{
    public function index()
    {
       return view('backend.auth.user.dictionary');
    }

    public function store(Request $request)
    {

    }

    public function show($id)
    {
        
    }

    public function update(Request $request, $id)
    {
        //
    }

    public function destroy($id)
    {
        //
    }

    public function getDict(Request $request)
    {   
        
    }
}
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In the controller I created a getDict function for capture the request and display on dictionary.blade.php view but I don't know to do it.

The view is: Is empty because I don't know if I should do anything with it

@extends('backend.layouts.app')

@section('content')

@endsection
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