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- "use strict";
- Object.defineProperty(exports, "__esModule", {
- value: true
- });
- exports.singleFieldOnlyMessage = singleFieldOnlyMessage;
- exports.SingleFieldSubscriptions = SingleFieldSubscriptions;
- var _GraphQLError = require("../../error/GraphQLError");
- function singleFieldOnlyMessage(name) {
- return name ? "Subscription \"".concat(name, "\" must select only one top level field.") : 'Anonymous Subscription must select only one top level field.';
- }
- function SingleFieldSubscriptions(context) {
- return {
- OperationDefinition: function OperationDefinition(node) {
- if (node.operation === 'subscription') {
- if (node.selectionSet.selections.length !== 1) {
- context.reportError(new _GraphQLError.GraphQLError(singleFieldOnlyMessage(node.name && node.name.value), node.selectionSet.selections.slice(1)));
- }
- }
- }
- };
- }
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