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Express JWT Guard

Protect private routes by validating the bearer token and attaching the decoded user to the request.

expressjwtmiddleware

javascript

1import jwt from "jsonwebtoken";
2 
3export const requireAuth = (req, res, next) => {
4  const authHeader = req.headers.authorization;
5 
6  if (!authHeader?.startsWith("Bearer ")) {
7    return res.status(401).json({ message: "Missing access token" });
8  }
9 
10  const token = authHeader.split(" ")[1];
11 
12  try {
13    req.user = jwt.verify(token, process.env.JWT_SECRET);
14    next();
15  } catch (error) {
16    return res.status(401).json({ message: "Invalid or expired token" });
17  }
18};