GraphQLoperaation

GraphQLoperation, usually referred to as a GraphQL operation in standard terminology, denotes a request sent to a GraphQL server that specifies what data should be fetched or modified. In GraphQL, operations are classified into three types: query for reading data, mutation for writing data, and subscription for real-time updates. Each operation is defined within a GraphQL document and is executed against a GraphQL schema.

An operation can be anonymous or named, and may include variables. A typical operation consists of an operation type, an optional name, optional variable definitions, and a selection set that describes the fields to be returned. The selection set can include nested fields, fragments, and directives to control data shape and behavior. The document can define multiple fragments and, in some cases, multiple operations; a single operation is chosen for execution per request.

During execution, the GraphQL server validates the operation against the schema, then resolves fields by invoking field resolvers. Variables supplied at request time are substituted into the operation. The response is a JSON object with a data field containing the requested values, and an errors field if any problems occurred during execution.

The spelling GraphQLoperaation is a variant that appears to be a typographical error for GraphQL operation. In standard usage, the term refers to the defined operation type and structure described above.