clqms-be/app/Config/Routes.php

<?php

use CodeIgniter\Router\RouteCollection;

/**
 * @var RouteCollection $routes
 */
$routes->options('(:any)', function() {
    return '';
});
$routes->get('/', 'Home::index');

$routes->post('/auth/login/', 'Auth::login');
$routes->post('/auth/change_pass/', 'Auth::change_pass');
$routes->post('/auth/register/', 'Auth::register');

$routes->get('/api/patient', 'Patient::index');
$routes->post('/api/patient', 'Patient::create');
$routes->get('/api/patient/(:num)', 'Patient::show/$1');
$routes->delete('/api/patient/(:num)', 'Patient::delete/$1');
$routes->patch('/api/patient/(:num)', 'Patient::update/$1');

$routes->get('/api/race', 'Race::index');
$routes->get('/api/country', 'Country::index');
$routes->get('/api/religion', 'Religion::index');
$routes->get('/api/ethnic', 'Ethnic::index');