在 firestore 子集合上添加实时监听器

Question

Is it possible to have realtime listener on a subcollection in firestore? I have a subcollection called meetings and when I add a new document the listener is not triggered. Below is a sample of my code. any idea on what should I do? I know I can use top level collection for meetings but in my case I want things to be subcollections way in some parts.

export const getMeetings = (projectId) => {
  const meetingsCollection = firestore.collection('projects-meetings')
  return (dispatch) => {
    meetingsCollection.doc(projectId).collection('meetings').onSnapshot((querySnapShot) => {
      const array = [];
      querySnapShot.forEach(doc => {
        const meeting = { ...doc.data() }
        array.push(meeting)
      })
      dispatch({ type: meetingsActions.GET_MEETINGS_SUCCESS, payload: array });
    }, (err => {
      dispatch({ type: meetingsActions.GET_MEETINGS_ERROR }, err);
    })
    );
  }
};

Answer 1

So figured it out. The problem was with using Redux-Persist. I don't know why but it was not fetching data when things were changing in firestore. when I disabled redux persist it worked fine. But I really want to use redux-persist and I don't know if it is necessary with Firebase local persistence enabled.