| 'use strict'; |
| |
| Object.defineProperty(exports, '__esModule', { |
| value: true, |
| }); |
| exports.LoneAnonymousOperationRule = LoneAnonymousOperationRule; |
| |
| var _GraphQLError = require('../../error/GraphQLError.js'); |
| |
| var _kinds = require('../../language/kinds.js'); |
| |
| /** @category Validation Rules */ |
| |
| /** |
| * Lone anonymous operation |
| * |
| * A GraphQL document is only valid if when it contains an anonymous operation |
| * (the query short-hand) that it contains only that one operation definition. |
| * |
| * See https://spec.graphql.org/draft/#sec-Lone-Anonymous-Operation |
| * @param context - The validation context used while checking the document. |
| * @returns A visitor that reports validation errors for this rule. |
| * @example |
| * ```ts |
| * import { buildSchema, parse, validate } from 'graphql'; |
| * import { LoneAnonymousOperationRule } from 'graphql/validation'; |
| * |
| * const schema = buildSchema(` |
| * type Query { |
| * name: String |
| * } |
| * `); |
| * |
| * const invalidDocument = parse(` |
| * query { name } query Other { name } |
| * `); |
| * const invalidErrors = validate(schema, invalidDocument, [LoneAnonymousOperationRule]); |
| * |
| * invalidErrors.length; // => 1 |
| * |
| * const validDocument = parse(` |
| * { name } |
| * `); |
| * const validErrors = validate(schema, validDocument, [LoneAnonymousOperationRule]); |
| * |
| * validErrors; // => [] |
| * ``` |
| */ |
| function LoneAnonymousOperationRule(context) { |
| let operationCount = 0; |
| return { |
| Document(node) { |
| operationCount = node.definitions.filter( |
| (definition) => definition.kind === _kinds.Kind.OPERATION_DEFINITION, |
| ).length; |
| }, |
| |
| OperationDefinition(node) { |
| if (!node.name && operationCount > 1) { |
| context.reportError( |
| new _GraphQLError.GraphQLError( |
| 'This anonymous operation must be the only defined operation.', |
| { |
| nodes: node, |
| }, |
| ), |
| ); |
| } |
| }, |
| }; |
| } |