Lumen 5.5 always getting 404 error

Question

When I try to enter [mydomain.com] I see the default version page:

Lumen (5.5.2) (Laravel Components 5.5.*)

When I try to enter [mydomain.com]/api/user I receive a 404 error.

My web.php looks as follows:

$router->get('/', function () use ($router) {
    return $router->app->version();
});

$router->group(['prefix' => 'api'], function () use ($router) {
    // show
    $router->get('user', 'UserController@show');
});

What am I missing? Can anyone help?

Answer 1

I´m still not 100% sure why this behaviour occured, cause on the same server an additional lumen project worked even before my fix perfectly, but I have found the reason:

The problem depends on an issue with the rewrite engine. It´s quite easy to find out if you have the same problem. If you get a 404 on each route except the "/" try out to add "index.php" in your URL (e.g.: domain.com/index.php/user instead of domain.com/user). If now the route can be used you might check your apache config and change

<Directory /var/www/>
    Options Indexes FollowSymLinks
    AllowOverride None
    Require all granted
</Directory>

to

<Directory /var/www/>
    Options Indexes FollowSymLinks
    AllowOverride All
    Require all granted
</Directory>

Additionally you can check if your rewirte engine works well by adding the following line to the .htaccess inside the \public folder of your lumen project:

<IfModule mod_rewrite.c>
  Redirect 301 / https://google.com
  [...]

If you´re not redirected to google while requesting any route you need to check your configuration.