I have a CRUD app which is a telegram bot written in express axios. I’m using firestore SDK and firebase npm package which seems like the preferred way to use my cloud firestore DB

const firebaseConfig = {
  apiKey: FIREBASE_API_KEY,
  authDomain: FIREBASE_AUTH_DOMAIN,
  projectId: FIREBASE_PROJECT_ID,
  storageBucket: FIREBASE_STORAGE_BUCKET,
  messagingSenderId: FIREBASE_MESSAGING_SENDER_ID,
  appId: FIREBASE_APP_ID,
  measurementId: FIREBASE_MEASUREMENT_ID,
};

let app;
let firestoreDb;

const initializeFirebaseApp = () => {
  try {
    app = initializeApp(firebaseConfig);
    firestoreDb = getFirestore();
    return app;
  } catch (error) {
    errorHandler(error, "firebase-initializeFirebaseApp");
  }
};

i have the setup done and its working fine without any rules

i read rule doc on official firestore cloud, and it was mostly about about how to write conditions, i couldnt find a straight forward documentation or guide about my problem.
I want my app to have full write/read access to my database how can i set rules for that?