| /** @category Operations */ |
| import type { Maybe } from '../jsutils/Maybe'; |
| import type { DocumentNode, OperationDefinitionNode } from '../language/ast'; |
| /** |
| * Returns an operation AST given a document AST and optionally an operation |
| * name. If a name is not provided, an operation is only returned if only one is |
| * provided in the document. |
| * @param documentAST - The parsed GraphQL document AST. |
| * @param operationName - The optional operation name to select. |
| * @returns The resolved operation ast. |
| * @example |
| * ```ts |
| * import { parse } from 'graphql/language'; |
| * import { getOperationAST } from 'graphql/utilities'; |
| * |
| * const document = parse('query GetName { name }'); |
| * const operation = getOperationAST(document, 'GetName'); |
| * |
| * operation.name.value; // => 'GetName' |
| * getOperationAST(document, 'Missing'); // => undefined |
| * ``` |
| */ |
| export declare function getOperationAST( |
| documentAST: DocumentNode, |
| operationName?: Maybe<string>, |
| ): Maybe<OperationDefinitionNode>; |