38 lines
907 B
JavaScript
38 lines
907 B
JavaScript
const crypto = require("crypto");
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function generateRequestId() {
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if (typeof crypto.randomUUID === "function") {
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return crypto.randomUUID();
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}
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return crypto.randomBytes(16).toString("hex");
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}
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function isPlainObject(value) {
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return (
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value !== null &&
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typeof value === "object" &&
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!Array.isArray(value) &&
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Object.prototype.toString.call(value) === "[object Object]"
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);
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}
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function requestIdMiddleware(req, res, next) {
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const requestId = generateRequestId();
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req.request_id = requestId;
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res.locals.request_id = requestId;
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res.setHeader("X-Request-Id", requestId);
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const originalJson = res.json.bind(res);
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res.json = (payload) => {
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if (isPlainObject(payload) && payload.request_id === undefined) {
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return originalJson({ ...payload, request_id: requestId });
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}
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return originalJson(payload);
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};
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next();
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}
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module.exports = requestIdMiddleware;
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