如何强制 Apollo Client 将缓存数据用于详细信息视图页面 [英] How to force Apollo Client to use cached data for detail view page

问题描述

我有一个基于分页游标的查询 TODOS 和带有查询 TODO 的详细信息页面，用于按 ID 获取数据.每当我进入详细视图并使用 useQuery 和 TODO 查询(其中包含与 TODOS 查询结果完全相同的数据，它仍然尝试获取数据从服务器而不是缓存.我怎样才能实现不从服务器获取数据(因为它已经存在)，我认为 Apollo 通过 id 检测并从缓存中返回但没有.有什么建议吗?

I have a paginated cursor based query TODOS and detail page with query TODO to get data by ID. Whenever I go to detail view and use useQuery with TODO query (Which contains exactly same data as TODOS query result, it still tries to get data from server not from cache. How can I achieve to not get data from server (Because it already exists), I thought Apollo detect by id and return from the cache but no. Any suggestions ?

与此类似的问题 post，但我认为那不是正确的方法，应该有更好的解决方案.(我希望)

Similar issue as no this post, but I don't think thats a right approach, there should be better solution. (I hope)

这是TODOS查询:

query TODOS(
  $paginationOptions: PaginationOptionsInput
) {
  todos(paginationOptions: $paginationOptions) {
    pagination {
      minCursor
      maxCursor
      sortOrder
      limit
      hasMoreResults
    }
    result {
     id
     ...SomeTodoFields
  }
}

在详细信息页面上我有第二个查询TODO

And on detail page I have second query TODO

query (
  $todoId: String!
) {
  todo(todoId: $todoId) {
    id
    ...SomeTodoFields
  } 
}

推荐答案

因为我使用 Apollo-client <3.0 对我来说 cacheRedirect 工作得很好，你可以看看更远的 此处.仔细阅读每一个笔记，这真的很重要！我的代码示例:

Since I am using Apollo-client < 3.0 for me cacheRedirect worked fine, you can have a look farther here. Read every note carefully it is really important! My code example:

cache: new InMemoryCache({
    fragmentMatcher,
    cacheRedirects: {
      Query: {
        todo: (_, args, { getCacheKey }) => {
          return getCacheKey({ __typename: 'TodoType', id: args.todoId })
        }
      }
    }

  })
})

还发现了一些很好的相关文章，您可能想检查一下.这对我有用，希望对其他人也有帮助.:)

Found some good relevant article as well, which you might want to check. This worked for me, hope it helps to someone else as well. :)

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