statamic-cms/src/GraphQL/Middleware/CacheResponse.php at 0890ab60b5ad3ae29a4e50671b4118ce309fdb62 · Skullsneeze/statamic-cms · GitHub

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<?php

namespace Statamic\GraphQL\Middleware;

use Closure;
use Statamic\Contracts\GraphQL\ResponseCache;

class CacheResponse
{
    public function handle($request, Closure $next)
    {
        if ($request->statamicToken()) {
            return $next($request);
        }

        if ($this->isMutation($request)) {
            return $next($request);
        }

        $cache = app(ResponseCache::class);

        if ($response = $cache->get($request)) {
            return $response;
        }

        $response = $next($request);

        $cache->put($request, $response);

        return $response;
    }

    protected function isMutation($request): bool
    {
        $query = ltrim(strtolower($request->get('query', '')));

        return str_starts_with($query, 'mutation');
    }
}