Performs GraphQL mutation operation.
mutation document, mutation variables and authentication token (optional). If authentication token is provided then the token provided via the constructor will be ignored.
mutation result.
Performs GraphQL query operation.
query document, query variables and authentication token (optional). If authentication token is provided then the token provided via the constructor will be ignored.
query result.
Performs GraphQL subscription operation.
subscription document, subscription variables and authentication token (optional). If authentication token is provided then the token provided via the constructor will be ignored.
observable for receiving subscription notifications.
Interface for GraphQL client operations.