Innovation Agents GraphQL Bundle

// very early state ... handle with care :-)

Integrates the fantastic webonyx/graphql-php Library into Symfony 4 and maps every GraphQL-Type into a single service class

GraphQL? ... it's awesome

• http://olegilyenko.github.io/presentation-graphql-introduction/#/
• http://graphql.org/learn/
• https://plugins.jetbrains.com/plugin/8097-js-graphql (Jetbrains Integration)

Installation

1. add with composer

composer require innovation-agents/graphql-bundle

2. add to routing.yaml

# /config/routes.yaml

ia_graphql:
    resource: "@InnovationAgentsGraphQLBundle/Resources/config/routing.yml"
    prefix: /graphql

3. define path to schema file

# /config/packages/ia_graphql.yaml

innovation_agents_graph_ql:
  graphql_schema_file: '%kernel.root_dir%/../schema.graphqls'

4. write schema file

5. define services

Every GraphQL-Type has one specific service interface as well as an abstract class which handles a small boilerplate. Simply extends e.g. the class AbstractQueryResolver and implement your own logic. Due to Symfony's Autowiring, your service will be recognized automatically if you implement the ResolverInterface.

Also look at the documentation of webonyx/graphql-php for further information

Here a small example to resolve the current user ...

class CurrentUserResolver extends AbstractQueryResolver
{
    /** @var  TokenStorage */
    private $tokenStorage;

    public function __construct(TokenStorage $tokenStorage)
    {
        $this->tokenStorage = $tokenStorage;
    }

    public function getName(): string
    {
        return 'CurrentUser';
    }

    public function resolve(string $fieldName, array $arguments, array $fields, $value=null)
    {
        /** @var User $user */
        $user = $this->tokenStorage->getToken()->getUser();

        $return = [
            'id' => $user->getId(),
            'username' => $user->getUsername(),
            'email' => $user->getEmail(),
            'firstName' => $user->getFirstName(),
            'lastName' => $user->getLastName(),
        ];

        return $return;
    }

}

Contributing

You are welcome :-)