Add Error And Auth Middleware

Author: lazy-geek

middleware/auth.js

@@ -0,0 +1,23 @@
+const jwt = require('jsonwebtoken')
+const { UnauthenticatedError } = require('../errors')
+
+const authenticationMiddleware = async (req, res, next) => {
+  const authHeader = req.headers.authorization
+
+  if (!authHeader || !authHeader.startsWith('Bearer ')) {
+    throw new UnauthenticatedError('No token provided')
+  }
+
+  const token = authHeader.split(' ')[1]
+
+  try {
+    const decoded = jwt.verify(token, process.env.JWT_SECRET)
+    const { id, username } = decoded
+    req.user = { id, username }
+    next()
+  } catch (error) {
+    throw new UnauthenticatedError('Not authorized to access this route')
+  }
+}
+
+module.exports = authenticationMiddleware

middleware/error-handler.js

@@ -0,0 +1,12 @@
+const { CustomAPIError } = require('../errors')
+const { StatusCodes } = require('http-status-codes')
+const errorHandlerMiddleware = (err, req, res, next) => {
+  if (err instanceof CustomAPIError) {
+    return res.status(err.statusCode).json({ msg: err.message })
+  }
+  return res
+    .status(StatusCodes.INTERNAL_SERVER_ERROR)
+    .send('Something went wrong try again later')
+}
+
+module.exports = errorHandlerMiddleware

middleware/not-found.js

@@ -0,0 +1,3 @@
+const notFound = (req, res) => res.status(404).send('Route does not exist')
+
+module.exports = notFound