<?php

public function authenticate(Request $request) {
    $username = $request->input('post_username');
    $password = $request->input('post_password');

    dd(Auth::attempt(['username' => $username, 'password' => $password]));

    if (Auth::attempt(['username' => $username, 'password' => $password])) {
        // Authentication passed...
        return redirect()->intended('/admin');
    } else {
        $data = [
            'error' => true,
        ];

        return view('admin.auth.login', $data);
    }
}

public function login() {
    return view('admin.auth.login');
}