balance controller

<?php

namespace App\Http\Controllers;

use Illuminate\Http\Request;
use Illuminate\Support\Facades\Http;

class BalanceController extends Controller
{
    /**
     * Handle the incoming request.
     *
     * @param  \Illuminate\Http\Request  $request
     * @return \Illuminate\Http\Response
     */
    public function __invoke(Request $request) {

    }

    public function getBalance() {
        $response = Http::post('http://18.138.137.251:9077/api/external/e-service/createToken', [
            'username' => 'TKDES_C_test',
            'password' => '1peDPZrR',
        ]);

        $responseBody = $response->body();
        $map = json_decode($responseBody, true);

        var_dump($map['data']["accessToken"]);

        return view('balance.balance', ['responsebody'=>$map['data']["accessToken"]]);
    }
}