update createRoom

+type Mutation {
+  createRoom(participantsId: [Int], categories: [Int]): Room!
+}

+import { prisma } from "../../../utils";
+
+export default {
+  Mutation: {
+    createRoom: async (_, args) => {
+      const { participantsId, categories } = args;
+      let newRoom, participantId;
+      if (participantsId !== undefined) {
+        newRoom = await prisma.room.create({
+          data: {
+            participants: {
+              connect: {
+                id: (participantId = participantsId.forEach(
+                  (cur, _, __) => cur
+                )),
+              },
+            },
+          },
+        });
+      }
+      if (categories !== undefined) {
+        newRoom = await prisma.room.create({
+          data: {
+            categories: {
+              connect: {
+                id: (category = categories.forEach((cur, _, __) => cur)),
+              },
+            },
+          },
+        });
+      }
+      return newRoom;
+    },
+  },
+};