@theguild/federation-composition/esm/subgraph/validation/rules/query-root-type-inaccessible-rule.js

Open Source Composition library for Apollo Federation

import { GraphQLError, OperationTypeNode } from 'graphql';
export function QueryRootTypeInaccessibleRule(context) {
    let rootTypeName = 'Query';
    return {
        SchemaDefinition(node) {
            const nonQueryType = node.operationTypes?.find(operationType => operationType.operation === OperationTypeNode.QUERY &&
                operationType.type.name.value !== 'Query');
            if (nonQueryType) {
                rootTypeName = nonQueryType.type.name.value;
            }
        },
        SchemaExtension(node) {
            const nonQueryType = node.operationTypes?.find(operationType => operationType.operation === OperationTypeNode.QUERY &&
                operationType.type.name.value !== 'Query');
            if (nonQueryType) {
                rootTypeName = nonQueryType.type.name.value;
            }
        },
        ObjectTypeDefinition(node) {
            const name = node.name.value;
            if (name !== rootTypeName) {
                return;
            }
            if (node.directives?.some(directive => context.isAvailableFederationDirective('inaccessible', directive))) {
                context.reportError(new GraphQLError(`Type "Query" is @inaccessible but is the root query type, which must be in the API schema.`, { nodes: node, extensions: { code: 'QUERY_ROOT_TYPE_INACCESSIBLE' } }));
            }
        },
    };
}