firestore.ts

/**
   * Update the entries for a specific marker
   * @param markerId Marker document ID
   * @param entry Entry to be added to the marker
   */
  updateEntriesForMarker(userKey: string, inmueble: any) {
    return this.angularFirestore
      .collection('users')
      .doc(userKey)
      .collection('inmuebles')
      .add(inmueble);
  }