# GraphQL Interfaces

Storefront supports GraphQL to get data for: products, categories, attributes and taxerules. The default GraphQL resolvers fetch the data from Elasticsearch. You can easily create custom schemas and resolvers for Search Engines / Third Party APIs.

# GraphQL Schema

Our default GraphQL schema is defined the within the modules. By default, we provide the default-catalog module. It contains a pretty comprehensive eCommerce schema that can be easily modified to suit your needs. Check the Default schema documentation.

# GraphQL Playground and queries

After launching the Storefront API server, there is a GraphQL API interface available at http://localhost:8080/graphql. You can use it for testing out some Graph QL queries.

You can find an example request for querying the products entity below:

{
  products(search: "bag", filter: {
    status: {
      in: [0, 1], scope: "default"
    },
    stock: {
      is_in_stock: {eq: true, scope: "default"}
    },
    visibility: {
      in: [3, 4], scope: "default"}
  },
    sort: {
      updated_at: DESC
    }
  ) {
    items
    total_count
    aggregations
    sort_fields {
      options {
        value
      }
    }
    page_info {
      page_size
      current_page
    }
  }
}

# Extending GraphQL schema

The default schema can be easily modified by just tweaking the modules/default-catalog/graphql/* definitions. You can add your own custom modules that define custom GraphQL schema. In the same way, you can disable the default-catalog module if you don't want to use our default entities.

Check the tutorial on how to extend GraphQL schema.