Where do I add custom verification for user registration - laravel

Question

I have a custom regitration form where I need (users telephone number and company id) as well as email and password.
The telephone number and company id will get an api call to verify its existence in the comapny directory. If it passes then I need to allow User model to make the registration but if it fails then return a fail.
Q: where in the chain of registration should I make this api call to allow/reject the registration?
my \resources\views\auth\register.blade.php looks like this
<div class="container">
<div class="row justify-content-center">
<div class="col-md-8">
<div class="card">
<div class="card-header">{{ __('Register') }}</div>
<div class="card-body">
<form method="POST" action="{{ route('register') }}">
#csrf
<div class="form-group row">
<label for="companyid" class="col-md-4 col-form-label text-md-right">Innovations ID</label>
<div class="col-md-6">
<input id="companyid" type="text" class="form-control" name="companyid" value="" required autofocus>
</div>
</div>
<div class="form-group row">
<label for="telephonenumber" class="col-md-4 col-form-label text-md-right">Zip Code</label>
<div class="col-md-6">
<input id="telephonenumber" type="text" class="form-control" name="telephonenumber" value="" required autofocus>
</div>
</div>
<div class="form-group row">
<label for="email" class="col-md-4 col-form-label text-md-right">{{ __('E-Mail Address') }}</label>
<div class="col-md-6">
<input id="email" type="email" class="form-control #error('email') is-invalid #enderror" name="email" value="{{ old('email') }}" required autocomplete="email">
#error('email')
<span class="invalid-feedback" role="alert">
<strong>{{ $message }}</strong>
</span>
#enderror
</div>
</div>
<div class="form-group row">
<label for="password" class="col-md-4 col-form-label text-md-right">{{ __('Password') }}</label>
<div class="col-md-6">
<input id="password" type="password" class="form-control #error('password') is-invalid #enderror" name="password" required autocomplete="new-password">
#error('password')
<span class="invalid-feedback" role="alert">
<strong>{{ $message }}</strong>
</span>
#enderror
</div>
</div>
<div class="form-group row">
<label for="password-confirm" class="col-md-4 col-form-label text-md-right">{{ __('Confirm Password') }}</label>
<div class="col-md-6">
<input id="password-confirm" type="password" class="form-control" name="password_confirmation" required autocomplete="new-password">
</div>
</div>
<div class="form-group row mb-0">
<div class="col-md-6 offset-md-4">
<button type="submit" class="btn btn-primary">
{{ __('Register') }}
</button>
</div>
</div>
</form>
</div>
</div>
</div>
</div>
</div>
here is my controller app\Http\Controllers\Auth\RegisterController.php
I would think this is where I would add my api call but not sure how to go about it.
namespace App\Http\Controllers\Auth;
use App\Http\Controllers\Controller;
use App\Providers\RouteServiceProvider;
use App\User;
use Illuminate\Foundation\Auth\RegistersUsers;
use Illuminate\Support\Facades\Hash;
use Illuminate\Support\Facades\Validator;
class RegisterController extends Controller{
use RegistersUsers;
protected $redirectTo = RouteServiceProvider::HOME;
public function __construct(){
$this->middleware('guest');
}
protected function validator(array $data){
return Validator::make($data, [
'companyid' => ['required', 'string', 'max:255'],
'telephonenumber' => ['required', 'string', 'max:255'],
'email' => ['required', 'string', 'email', 'max:255', 'unique:users'],
'password' => ['required', 'string', 'min:8', 'confirmed'],
]);
}
protected function create(array $data)
{
return User::create([
'companyid' => $data['companyid'],
'telephonenumber' => $data['telephonenumber'],
'email' => $data['email'],
'password' => Hash::make($data['password']),
]);
}
}
this is my user model app\User.php
protected $fillable = [
'companyid', 'telephonenumber', 'email', 'password',
];
protected $hidden = [
'password', 'remember_token',
];
protected $casts = [
'email_verified_at' => 'datetime',
];

Answer 1

You need to do it in the create method of the RegisterController.
You can make api calls within create method using the Http facade. But you need to have guzzle as dependency in your project. You can pull it using composer.
composer require guzzlehttp/guzzle
Then you can make the api calls
protected function create(array $data)
{
//Remember to import the use statement
//use Illuminate\Support\Facades\Http; at top
$response = Http::get('http::/example.com');
//Need to stop further execution by throwing an exception
//If the verification via api call fails
//abort_unless($response->verified = true, 419);
return User::create([
'companyid' => $data['companyid'],
'telephonenumber' => $data['telephonenumber'],
'email' => $data['email'],
'password' => Hash::make($data['password']),
]);
}
Laravel docs: https://laravel.com/docs/8.x/http-client#making-requests