1 files changed, 34 insertions, 0 deletions
diff --git a/src/middleware/auth.ts b/src/middleware/auth.ts
new file mode 100644
index 0000000..ee10218
--- /dev/null
+++ b/src/middleware/auth.ts
@@ -0,0 +1,34 @@
+import { Request, Response, NextFunction } from "express";
+import jwt from "jsonwebtoken";
+
+const authenticate = () => (req: Request, res: Response, next: NextFunction) => {
+    const authHeader = req.headers.authorization;
+    const token = authHeader && authHeader.split(" ")[1];
+
+    if (!token) res.status(401).json({ error: "Unauthorized" });
+
+    // @ts-ignore
+    jwt.verify(token as string, process.env.ACCESS_TOKEN_SECRET, (err, claims) => {
+        if (err) {
+            // @ts-ignore
+            switch (err.message) {
+                case "jwt expired":
+                    res.status(401).json({ error: "Token Expired" });
+                    break;
+                case "invalid signature":
+                    res.status(401).json({ error: "Invalid Credentials" });
+                    break;
+                default:
+                    res.status(500).json({ error: "Internal Server Error" });
+                    console.error(err)
+                    break;
+            }
+        } else {
+            // @ts-ignore
+            req.userId = claims.userId;
+            next();
+        }
+    });
+}
+
+export default authenticate;
+\ No newline at end of file