Automated Re-fetching not working - RTK-Query-CodePudding

Using RTK-Query Help.

I'm fetching only following users post on HomePage Its showing all following users post, but when following user creates new post, its not Auto Re-Fetching, I have to reload the page manually then its rendering.

Issue: I have only one route for getting following users post data '/api/followingUsersPost'.
For Auto Re-Fetching it needs mutation and thats the issue here,
And in my case mutation is not in my hand, following user will update the data / dont know when. so yeah thats why i need auto re-fectch. and thats the issue How should rtk-query know that a new post has been added

// Store.js

import { configureStore } from '@reduxjs/toolkit';
import AuthSlice from './AuthSlice';
import { profileApi } from './rtk';
import { followingUsersPostApi } from './FollowingUsersPost';

const store = configureStore({
  reducer: {
    auth: AuthSlice.reducer,
    [profileApi.reducerPath]: profileApi.reducer,
    [followingUsersPostApi.reducerPath]: followingUsersPostApi.reducer,
  },

  middleware: (getDefaultMiddleware) =>
    getDefaultMiddleware().concat(
      profileApi.middleware,
      followingUsersPostApi.middleware
    ),
});

export default store;

// FollowingUsersPostApi.js

import { createApi, fetchBaseQuery } from '@reduxjs/toolkit/query/react';

export const followingUsersPostApi = createApi({
  reducerPath: 'followingUsersPostApi',
  baseQuery: fetchBaseQuery({ baseUrl: '/api' }),
  tagTypes: ['Post'],
  endpoints: (builder) => ({
    //
    followingUsersPost: builder.query({
      query: () => `/followingUsersPost`,
      invalidatesTags: ['Post'],
    }),
  }),
});

export const { useFollowingUsersPostQuery } = followingUsersPostApi;

// HomePage.jsx
import { useFollowingUsersPostQuery } from '../../Store/FollowingUsersPost';

const HomePage = () => {
  const { data, isLoading, error } = useFollowingUsersPostQuery();
}

I checked docs but there is providesTags and invalidatesTags but i have only one route for getting followers post, so i have use invalidatesTags

CodePudding user response：

How should rtk-query know that a new post has been added? I don't see a mutation in which you add a new post. Please see mutations documentations, and after that see how cache works in rtk-query.

Polling
If you can't handle the mutation, I suppose the interval updates your only way.
Read more about polling

const state = useFollowingUsersPostQuery(undefined, { pollingInterval: 3000 });