Laravel 8 API Authentication - api

Question

This is Register Function in AuthController.php
public function register(Request $request)
{
if($request->type == 'ServiceMen')
{
$u = Workers::where('mobile',$request->mobile)->first();
if($u != null)
{
if(Auth::attempt(['mobile' => $request->mobile, 'password' => 'password'])){
echo "in";
$user = Auth::user();
$success['token'] = $user->createToken('jhbasdj')->plainTextToken;
$success['mobile'] = $user->mobile;
//return response()->json($success, 200);
}
echo "else";
}
}
elseif($request->type == 'User')
{
$u = User::where('mobile',$request->mobile)->first();
if($u==null)
{
$input = $request->all();
$input['password'] = bcrypt('password');
$user = User::create($input);
}
if(Auth::attempt(['mobile' => $request->mobile, 'password' => 'password'])){
$user = Auth::user();
$success['token'] = $user->createToken('kjsdbvk')->plainTextToken;
$success['mobile'] = $user->mobile;
return response()->json($success, 200);
}
}
}
I need to login staff from workers table and user from user model but user authentication works fine. I don't know how to login with workers model as a staff.
please help me with this.