PHP code example of x-graphql / field-guard

1. Go to this page and download the library: Download x-graphql/field-guard library. Choose the download type require.

2. Extract the ZIP file and open the index.php.

3. Add this code to the index.php. 
    
        
<?php
require_once('vendor/autoload.php');

/* Start to develop here. Best regards https://php-download.com/ */

x-graphql / field-guard example snippets


use GraphQL\Type\Definition\ResolveInfo;
use XGraphQL\FieldGuard\RuleInterface;

$isAdminRule = new class implements RuleInterface {
    public function allows(mixed $value, array $args, mixed $context, ResolveInfo $info) : bool{
        return $context->isAdmin();
    }
    
    public function shouldRemember(mixed $value,array $args,mixed $context,ResolveInfo $info) : bool{
        return true;
    }
};

$permissions = [
    'Query' => [
        'getUser' => true, /// all user can get user.
        'getBook' => false, /// deny all user to get book.
    ],
    'Mutation' => [
        'createUser' => $isAdminRule, /// only admin user can create user.
    ]   
];


use XGraphQL\FieldMiddleware\FieldMiddleware;
use XGraphQL\FieldGuard\FieldGuardMiddleware;

$schema = ...
$guardMiddleware = new FieldGuardMiddleware($permissions);

FieldMiddleware::apply($schema, [$guardMiddleware]);