Apollo Client - 当变量发生变化时，可以只重新获取较大查询的片段吗？

Question

I wanted to explore the pattern of fetching all the needed data for a page in one request. So let's say I have a user config page, which needs a list of teams to assign a user to, and a list of roles a user can have. I'm using the following query to get the first page of users as well as all available roles and teams.

import { gql } from "@apollo/client";

const listUser = gql`
  fragment listUser on Query {
    users(page: $page, per: $per) {
      edges {
        node {
          id
          name
          title
          avatar
        }
      }
      pageInfo {
        count
      }
    }
  }
`;

const roleFragment = gql`
  fragment roleFragment on Query {
    roles {
      name
      id
    }
  }
`;

const teamsFragment = gql`
  fragment teamsFragment on Query {
    teams {
      nodes {
        id
        name
        manager {
          name
        }
      }
    }
  }
`;

export const getUserConfig = gql`
  query getUserConfig($page: Int, $per: Int) {
    ...listUser
    ...roleFragment
    ...teamsFragment
  }
  ${listUser}
  ${roleFragment}
  ${teamsFragment}
`;

And I'm using it like this (generated using graphql-codegen):

const { loading, error, data, refetch } = useGetUserConfigQuery({
 variables: {
   page: 1,
   per: 7,
  }
});

This works really well and allows me to grab the data I need for the page in one round trip. However, whenever I change the page variable for users (to go to the next page obviously), it's going to refetch everything . Is there a way of doing this so that it only refetches the fragment that's variables changed? Or is there a better pattern for what I'm trying to accomplish? Thanks!

Answer 1

Instead of using the useQuery hook, you can query the initial data directly using ApolloClient.query method directly, and then in subcomponents of your page subscribe to updates on subsets of your data ApolloClient.watchQuery

You can view example code for a range of different ApolloClient methods here .