🎨 Add route validation

higorpo · higorpo · commit 9011603aa6f3 · 2020-09-14T13:27:04.000-03:00
diff --git a/src/controllers/Factorial/index.ts b/src/controllers/Factorial/index.ts
@@ -1,8 +1,14 @@
 import { Request, Response } from 'express';
+import { validationResult } from 'express-validator';
 
 class FactorialController {
     compute(request: Request, response: Response) {
-        console.log(request.query);
+        const errors = validationResult(request);
+
+        if (!errors.isEmpty()) {
+            return response.status(400).json({ errors: errors.array() });
+        }
+
         return response.send("ok, it's working!");
     }
 }
diff --git a/src/routes.ts b/src/routes.ts
@@ -1,10 +1,14 @@
 import { Router } from 'express';
+import { query } from 'express-validator';
+
 import FactorialController from './controllers/Factorial';
 
 const route = Router();
 
 const factorialController = new FactorialController();
 
-route.get('/factorial', factorialController.compute);
+route.get('/factorial', [
+    query('number').isNumeric().withMessage('Você precisa fornecer um número')
+], factorialController.compute);
 
 export default route;
