@aikidosec/firewall
Version:
Zen by Aikido is an embedded Application Firewall that autonomously protects Node.js apps against common and critical attacks, provides rate limiting, detects malicious traffic (including bots), and more.
42 lines (41 loc) • 1.3 kB
JavaScript
;
Object.defineProperty(exports, "__esModule", { value: true });
exports.extractTopLevelFieldsFromDocument = extractTopLevelFieldsFromDocument;
function extractTopLevelFieldsFromDocument(document, operationName) {
const operations = document.definitions.filter(isOperationDefinition);
if (operations.length === 0) {
return undefined;
}
if (!operationName && operations.length === 1) {
return extractFields(operations[0]);
}
if (operationName) {
const operation = operations.find((operation) => { var _a; return ((_a = operation.name) === null || _a === void 0 ? void 0 : _a.value) === operationName; });
if (operation) {
return extractFields(operation);
}
}
return undefined;
}
function extractFields(node) {
const fields = node.selectionSet.selections.filter(isField);
if (node.operation === "query") {
return {
type: "query",
fields: fields,
};
}
if (node.operation === "mutation") {
return {
type: "mutation",
fields: fields,
};
}
return undefined;
}
function isField(node) {
return node.kind === "Field";
}
function isOperationDefinition(node) {
return node.kind === "OperationDefinition";
}