GET variables as API arguments

There are two ways to use GET params as API arguments:

• In the class that the endpoint refers to (e.g. your Card component class). Basically this means that instead of — or in addition to — regular constructor arguments you would also check provided GET params.
• Alternatively you can hook into the WireframeAPI::prepareArgs() method and merge GET params with existing arguments — though be sure to also filter them so that they can only contain useful/expected values!

Here's an example of hooking into the prepareArgs() method and merging GET argument called "some_variable" with any existing arguments:

$api->addHookAfter('prepareArgs', function(HookEvent $event) use ($input) {
    $event->return = array_merge($event->return, [
        $input->get->bool('some_variable'),
    ]);
});

Note that while in the example above we could've also allowed all GET params simply by merging $event->return with $input->get->getArray(), allowing users to freely pass arguments of their choice to your endpoint could be potentially dangerous.