[api] Add Sentry (#3597)

* [api] Add Sentry

* Use function name

* Add test error

* Revert "Add test error"

This reverts commit 39cf8a61dad9fcdcb616e418a0deb6ffe9e04ea9.

* Revert "Revert "Add test error""

This reverts commit c718f201da9d80743319ac87e0d4560e718fff53.

* Add logging

* Revert "Add logging"

This reverts commit 39cd46c8bbeef9024e71fe70478068480a51545b.

* Revert "Revert "Revert "Add test error"""

This reverts commit e6f63ee21fabb4ac8fc065b74281dbcdf5811216.

* Ignore .env

* Use init function for Sentry inline

api/_lib/util/with-api-handler.ts

@@ -1,4 +1,5 @@
 import { NowRequest, NowResponse } from '@now/node';
+import { errorHandler } from './error-handler';
 
 type Handler = (req: NowRequest, res: NowResponse) => Promise<any>;
 
@@ -24,6 +25,20 @@ export function withApiHandler(handler: Handler): Handler {
       });
     }
 
-    return handler(req, res);
+    try {
+      const result = await handler(req, res);
+      return result;
+    } catch (error) {
+      errorHandler(error, {
+        url: req.url,
+      });
+
+      return res.status(500).json({
+        error: {
+          code: 'unexpected_error',
+          message: 'An unexpected error occurred.',
+        },
+      });
+    }
   };
 }