late fix

index.php

@@ -40,7 +40,7 @@ $app->use("/", function (array &$req, Response $res) {
  * Home
  */
 $app->get("/", function (array $req, Response $res) use ($db) {
-    $res->json(["message" => "",
+    $res->json(["message" => "Die Einkaufsliste des Don",
         "name" => "Shopping List",
         "authors" => "Simon Bock, Johannes Kantz & Malte Schulze Hobeling"]);
 });
@@ -55,10 +55,6 @@ $app->get("/user", function (array $req, Response $res) {
         $res->json(["status" => HTTP_STATUS_CODE::FORBIDDEN, "message" => "You are not logged in. Goto '/login' to login"]);
     }
 });
-$app->get("/user/:id", function (array $req, Response $res) use ($db) {
-    $db->select("utente", ["username" => $req["id"]]);
-    $res->send("user " . $req["params"]["id"]);
-});
 $app->post("/signup", function (array $req, Response $res) use ($db) {
     $newUsername = $req["body"]["username"];
     $newPassword = $req["body"]["password"];
@@ -116,7 +112,12 @@ $app->route("/ingredient")
 $app->route("/ingredient/:id")
     ->get(function (array $req, Response $res) use ($db) {
         $id = $req["params"]["id"];
-        $ingredient = $db->select("ingredienti", ["id" => $id])[0];
+        $query = $db->select("ingredienti", ["id" => $id]);
+        if(count($query) < 1){
+            $res->json(["message" => "Item does not exists"]);
+            return;
+        }
+        $ingredient = $query[0];
         $res->json(["data" => $ingredient]);
     })
     ->put(function (array $req, Response $res) use ($db) {
@@ -172,8 +173,13 @@ $app->route("/unit")
 $app->route("/unit/:id")
     ->get(function (array $req, Response $res) use ($db) {
         $id = $req["params"]["id"];
-        $ingredient = $db->select("folla", ["id" => $id])[0];
-        $res->json(["data" => $ingredient]);
+        $query = $db->select("folla", ["id" => $id]);
+        if(count($query) < 1){
+            $res->json(["message" => "Unit does not exists"]);
+            return;
+        }
+        $unit = $query[0];
+        $res->json(["data" => $unit]);
     })
     ->put(function (array $req, Response $res) use ($db) {
         $id = $req["params"]["id"];