__Schema
A GraphQL Schema defines the capabilities of a GraphQL server. It exposes all available types and directives on the server, as well as the entry points for query, mutation, and subscription operations.
| Field : Object | Description |
|---|---|
| directives: [ID] | A list of all directives supported by this server. |
| mutationType: __Type | If this server supports mutation, the type that mutation operations will be rooted at. |
| queryType: __Type | The type that query operations will be rooted at. |
| subscriptionType: __Type | If this server support subscription, the type that subscription operations will be rooted at. |
| types: [ID] | A list of all types supported by this server. |