createAsyncThunk.example.js

const fetchUsers = createAsyncThunk(
  "users/fetch",
  (function () {
    // use `p` to ensure promises are returned in order.
    let p = Promise.resolve();
    return () => {
      // Wait for previous promise to resolve first to guarantee ordering.
      return p.then(() => {
        // Change binding to new API call.
        p = usersAPI.fetchAll();
        // Return current promise.
        return p;
      })
    }
  })()
);