ObjectCache with __typename

caching_test.rb

require "bundler/inline"

gemfile do
  gem "graphql", "1.13.10"
  gem "graphql-pro", "1.21.4"
  gem "graphql-enterprise", "1.1.3"
end


class CachingSchema < GraphQL::Schema
  class BaseField < GraphQL::Schema::Field
    include GraphQL::Enterprise::ObjectCache::FieldIntegration
    cacheable(true)
  end

  class BaseObject < GraphQL::Schema::Object
    field_class(BaseField)
    include GraphQL::Enterprise::ObjectCache::ObjectIntegration
    cacheable(true)
  end

  class Thing < BaseObject
    field :name, String
  end

  class Query < BaseObject
    field :thing, Thing, null: false

    def thing
      { name: "something", id: "1" }
    end
  end

  query(Query)
  use GraphQL::Enterprise::ObjectCache, memory: true

  def self.private_context_fingerprint_for(ctx)
    ctx[:fingerprint]
  end

  def self.resolve_type(type, obj, ctx)
    Thing
  end

  def self.id_from_object(obj, type, ctx)
    obj[:id]
  end

  def self.object_fingerprint_for(object)
    object.inspect
  end
end


# Only typename:
res = CachingSchema.execute("{ __typename }")
pp res.to_h
# {"data"=>{"__typename"=>"Query"}}
pp res.context[:object_cache]
# {:public=>true,
#  :hit=>false,
#  :write=>true,
#  :key=>
#   "anonymous/f1bmfdIas_MNH_i3vtCIk_Cg24ZEmDYYmzYd0eVt20s=/0/RBNvo1WzZ4oRRq0W9-hknpT7T8If536DEMBg9hyq_4o=/",
#  :messages=>["No cache entry was found"],
#  :objects=>#<Set: {}>}

# Typename as part of a query:
res = CachingSchema.execute("{ thing { name __typename } }")
pp res.to_h
# {"data"=>{"thing"=>{"name"=>"something", "__typename"=>"Thing"}}}
pp res.context[:object_cache]
# {:public=>false,
#  :hit=>false,
#  :write=>true,
#  :key=>
#   "anonymous/P35Uwoli0lNrAwtsXYIK-S6ESu7X1oKc5PmGW_aJWL4=/0/RBNvo1WzZ4oRRq0W9-hknpT7T8If536DEMBg9hyq_4o=/",
#  :messages=>["No cache entry was found"],
#  :objects=>#<Set: {{:name=>"something", :id=>"1"}}>}