| 'use strict'; |
| |
| Object.defineProperty(exports, '__esModule', { |
| value: true, |
| }); |
| exports.getOperationRootType = getOperationRootType; |
| |
| var _GraphQLError = require('../error/GraphQLError.js'); |
| |
| /** @category Operations */ |
| |
| /** |
| * Extracts the root type of the operation from the schema. This deprecated |
| * helper is retained for backwards compatibility; call |
| * `GraphQLSchema.getRootType` instead because getOperationRootType will be |
| * removed in v17. |
| * @param schema - GraphQL schema to use. |
| * @param operation - The operation definition to inspect. |
| * @returns The resolved operation root type. |
| * @example |
| * ```ts |
| * import { buildSchema, getOperationRootType } from 'graphql/utilities'; |
| * import { parse } from 'graphql/language'; |
| * |
| * const schema = buildSchema('type Query { name: String }'); |
| * const operation = parse('{ name }').definitions[0]; |
| * const rootType = getOperationRootType(schema, operation); |
| * |
| * rootType.name; // => 'Query' |
| * ``` |
| * @deprecated Please use `GraphQLSchema.getRootType` instead. Will be removed in v17 |
| */ |
| function getOperationRootType(schema, operation) { |
| if (operation.operation === 'query') { |
| const queryType = schema.getQueryType(); |
| |
| if (!queryType) { |
| throw new _GraphQLError.GraphQLError( |
| 'Schema does not define the required query root type.', |
| { |
| nodes: operation, |
| }, |
| ); |
| } |
| |
| return queryType; |
| } |
| |
| if (operation.operation === 'mutation') { |
| const mutationType = schema.getMutationType(); |
| |
| if (!mutationType) { |
| throw new _GraphQLError.GraphQLError( |
| 'Schema is not configured for mutations.', |
| { |
| nodes: operation, |
| }, |
| ); |
| } |
| |
| return mutationType; |
| } |
| |
| if (operation.operation === 'subscription') { |
| const subscriptionType = schema.getSubscriptionType(); |
| |
| if (!subscriptionType) { |
| throw new _GraphQLError.GraphQLError( |
| 'Schema is not configured for subscriptions.', |
| { |
| nodes: operation, |
| }, |
| ); |
| } |
| |
| return subscriptionType; |
| } |
| |
| throw new _GraphQLError.GraphQLError( |
| 'Can only have query, mutation and subscription operations.', |
| { |
| nodes: operation, |
| }, |
| ); |
| } |