GraphQL

Installation

composer require efabrica/graphql

Usage

Schema definition

use Efabrica\GraphQL\Resolvers\ResolverInterface;
use Efabrica\GraphQL\Schema\Definition\Arguments\FieldArgument;
use Efabrica\GraphQL\Schema\Definition\Fields\Field;
use Efabrica\GraphQL\Schema\Definition\Fields\InputObjectField;
use Efabrica\GraphQL\Schema\Definition\ResolveInfo;
use Efabrica\GraphQL\Schema\Definition\Schema;
use Efabrica\GraphQL\Schema\Definition\Types\InputObjectType;
use Efabrica\GraphQL\Schema\Definition\Types\ObjectType;
use Efabrica\GraphQL\Schema\Definition\Types\Scalar\IDType;
use Efabrica\GraphQL\Schema\Definition\Types\Scalar\IntType;
use Efabrica\GraphQL\Schema\Definition\Types\Scalar\StringType;
$userResolver = new class implements ResolverInterface {
 public function __invoke($parentValue, array $args, ResolveInfo $resolveInfo): array
 {
 $limit = $args['pagination']['limit'] ?? null;
 $offset = $args['pagination']['offset'] ?? 0;
 
 $users = [
 [
 'id' => 1,
 'name' => 'John Doe',
 'email' => 'john@doe.com',
 ],
 [
 'id' => 2,
 'name' => 'Jane Dane',
 'email' => 'jane@dane.com',
 ],
 [
 'id' => 3,
 'name' => 'Moe Lester',
 'email' => 'moe@lester.com',
 ],
 ];
 
 return array_slice($users, $offset, $limit);
 }
};
$userObjectType = (new ObjectType('User'))
 ->setFields([
 new Field('id', new IDType()),
 new Field('name', new StringType()),
 new Field('email', new StringType()),
 ]);
$paginationArgument = new FieldArgument(
 'pagination',
 (new InputObjectType('pagination_argument'))
 ->setFields([
 (new InputObjectField('limit', new IntType()))
 ->setNullable(),
 (new InputObjectField('offset', new IntType()))
 ->setNullable(),
 ])
);
$schema = (new Schema())
 ->setQuery(
 (new ObjectType('Query'))
 ->setFields([
 (new Field('Users', $userObjectType))
 ->setMulti()
 ->setArguments([
 $paginationArgument,
 ])
 ->setResolver($userResolver),
 ])
 );

Initialization

use Efabrica\GraphQL\Drivers\WebonyxDriver;
use Efabrica\GraphQL\GraphQL;
use Efabrica\GraphQL\Schema\Loaders\DefinitionSchemaLoader;
$schemaLoader = new DefinitionSchemaLoader($schema);
$driver = new WebonyxDriver($schemaLoader);
$graphql = new GraphQL($driver);

Fetching results

$query = <<<GQL
 {
 Users (
 pagination: {
 limit: 2
 offset: 1
 }
 ) {
 id
 name
 email
 }
 }
 GQL;
$users = $graphql->executeQuery($query);
//array(1) {
// 'Users' =>
// array(2) {
// [0] =>
// array(3) {
// 'id' =>
// string(1) "2"
// 'name' =>
// string(9) "Jane Dane"
// 'email' =>
// string(13) "jane@dane.com"
// }
// [1] =>
// array(3) {
// 'id' =>
// string(1) "3"
// 'name' =>
// string(10) "Moe Lester"
// 'email' =>
// string(14) "moe@lester.com"
// }
// }
//}