From 0cc388233a1979d636f59d2fabd89d27333e2731 Mon Sep 17 00:00:00 2001
From: Raghd <rkkhalif@andrew.cmu.edu>
Date: Sun, 31 Aug 2025 23:26:18 +0300
Subject: [PATCH] fixing operand error

---
 src/fib.ts      |  4 +---
 src/fibRoute.ts | 25 ++++++++++++++++---------
 2 files changed, 17 insertions(+), 12 deletions(-)

diff --git a/src/fib.ts b/src/fib.ts
index 7466350..79c57e9 100644
--- a/src/fib.ts
+++ b/src/fib.ts
@@ -8,6 +8,4 @@ export function fibonacci(n: number): number {
     return 1;
   }
 
-  return fibonacci(n - 1) + fibonacci(n - 2);
-};
-
+  return fibonacci(n - 1) + fibonacci(n - 2); }
\ No newline at end of file
diff --git a/src/fibRoute.ts b/src/fibRoute.ts
index 2d41ca5..9c823ae 100644
--- a/src/fibRoute.ts
+++ b/src/fibRoute.ts
@@ -1,16 +1,23 @@
 // Endpoint for querying the fibonacci numbers
 
-const fibonacci = require("./fib");
+import { fibonacci } from './fib';
 
-export default (req, res) => {
-  const { num } = req.params;
+type Req = { params: { num: string } };
+type Res = { send: (body: string) => void };
 
-  const fibN = fibonacci(parseInt(num));
-  let result = `fibonacci(${num}) is ${fibN}`;
+export default (req: Req, res: Res): void => { const { num } = req.params; const n = Number.parseInt(num, 10);
+  if (Number.isNaN(n)) {
+    res.send(`n must be a number, received "${num}"`);
+    return;
+  }
+
+  const fibN = fibonacci(n);
 
+  let resultRequired = `fibonacci(${n}) is ${fibN}`;
+
+  
   if (fibN < 0) {
-    result = `fibonacci(${num}) is undefined`;
+    resultRequired = `fibonacci(${n}) is undefined`;
   }
-
-  res.send(result);
-};
+ res.send(resultRequired);
+};
\ No newline at end of file