IntrospectionSchema

Because there are different versions of GraphQL in the wild and because users may use different introspection queries, this model is a superset of all possible introspection models.

Especially:

• a schema definition is always added

• a service definition is always added

• missing description defaults to null

• missing directive argument definitions default to empty

• missing directives default to empty

• missing defaultValue defaults to null

• missing isDeprecated (for fields) defaults to false

• missing mutationType/subscriptionType

Old schemas

• missing isRepeatable defaults to false

• missing isDeprecated (for input value) defaults to false

Very old schemas

• missing directive locations skip the directive definition