@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" },
                }));
            }
        },
    };
}