Understanding GraphQL for Beginners–Part Two - Try it yourself #2

find_food_query.graphql

query {
  findFood(term: "China") {
    id
    name
    nutrition {
      calories
    }
  }
}

find_food_response.json

{
  "data": {
    "findFood": [
      {
        "id": "2",
        "name": "Beef Chow Mein",
        "nutrition": {
          "calories": "459"
        }
      }
    ]
  }
}

query_type.rb

field :find_food, [Types::FoodType], null: false do
  description 'Get all food items based on place of origin.'
  argument :term, String, required: true
end

def find_food(term:)
  Food.where('place_of_origin = ?', term)
end