Shopping List backend implementation

- Implemented fetching, create and update of groceries in db

hooks/firebase/useCreateGrocery.ts

@@ -0,0 +1,26 @@
+import { useMutation, useQueryClient } from "react-query";
+import firestore from "@react-native-firebase/firestore";
+import { useAuthContext } from "@/contexts/AuthContext";
+import {IGrocery} from "@/hooks/firebase/types/groceryData";
+
+export const useCreateGrocery = () => {
+    const { profileData } = useAuthContext();
+    const queryClients = useQueryClient();
+
+    return useMutation({
+        mutationKey: ["createGrocery"],
+        mutationFn: async (groceryData: Partial<IGrocery>) => {
+            try {
+                const newDoc = firestore().collection('Groceries').doc();
+                await firestore()
+                    .collection("Groceries")
+                    .add({...groceryData, id: newDoc.id, familyId: profileData?.familyId})
+            } catch (e) {
+                console.error(e)
+            }
+        },
+        onSuccess: () => {
+            queryClients.invalidateQueries("groceries")
+        }
+    })
+}