All routes related to Authentication are placed in routes/auth.php file, which is loaded inside routes/api.php.

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Registration

For registration in Larafast API Boilerplate responsible app/Http/Controllers/Auth/RegisteredUserController.php. The store method is the primary method in this controller. It handles incoming registration requests. The method accepts a RegisterRequest object, which encapsulates the validation rules for the registration data. Here’s a brief overview of the store method: 
public function store(RegisterRequest $request): JsonResponse
{
    $user = User::create([
        'name' => $request->name,
        'email' => $request->email,
        'password' => Hash::make($request->password),
    ]);

    event(new Registered($user));

    // Assign role to user if you have roles
    // $user->assignRole('user');

    return response()->token($user);
}
The store method performs the following steps:
  1. It creates a new User instance using the validated data from the RegisterRequest object. The password is hashed before being stored in the database.
  2. It fires a Registered event, passing the newly created user as the event’s argument. This event can be used to perform actions after a user has been registered, such as sending a welcome email.
  3. If roles are implemented in the application, a role can be assigned to the user at this point. This line is commented out in the provided code.
  4. Finally, it returns a JSON response containing a token for the newly registered user. This token can be used for subsequent authenticated requests.
To learn more about the return response()->token($user); method, refer to the Response Macros section.
Remember, this is a basic implementation of a registration controller. Depending on the requirements of your application, you might need to add more functionality, such as email verification, role assignment, etc.
Reference in Postman: Register