即使目标对象存在，Apollo readQuery 也会失败？

Question

我正在调用 readQuery。我收到一条错误消息：

modules.js?hash=2d0033b4773d9cb6f118946043f7a3d4385825fe:25847 
Error: Can't find field resolutions({"id":"Resolution:DHSzPa8bvPCDjuAac"}) 
on object (ROOT_QUERY) {
  "resolutions": [
    {
      "type": "id",
      "id": "Resolution:AepgCCio9KWGkwyMC",
      "generated": false
    },
    {
      "type": "id",
      "id": "Resolution:DHSzPa8bvPCDjuAac",  // <==ID I'M SEEKING
      "generated": false
    }
  ],
  "user": {
    "type": "id",
    "id": "User:WWv57KsvqWeAoBNHY",
    "generated": false
  }
}.

具有该 ID 的对象似乎作为决议列表中的第二个条目清晰可见。

这是我的查询：

const GET_CURRENT_RESOLUTION_AND_GOALS = gql`
  query Resolutions($id: String!) {
    resolutions(id: $id) {
      _id
      name
      completed
      goals {
        _id
        name
        completed
      }
    }
  }
`;

...我是这样称呼它的：

<Mutation
    mutation={CREATE_GOAL}
    update={(cache, {data: {createGoal}}) => {
        let id = 'Resolution:' + resolutionId;
        const {resolutions} = cache.readQuery({
            query: GET_CURRENT_RESOLUTION_AND_GOALS,
            variables: {
                id
            },
        });
    }}
>

我错过了什么？

更新

根据 Chrome 的 GraphQL 开发工具扩展，这里是整个 GraphQL 数据存储：

{
  "data": {
    "resolutions": [
      {
        "_id": "AepgCCio9KWGkwyMC",
        "name": "testing 123",
        "completed": false,
        "goals": [
          {
            "_id": "TXq4nvukpLcqQhMRL",
            "name": "test goal abc",
            "completed": false,
            "__typename": "Goal"
          },
        ],
        "__typename": "Resolution"
      },
      {
        "_id": "DHSzPa8bvPCDjuAac",
        "name": "testing 345",
        "completed": false,
        "goals": [
          {
            "_id": "PEkg5oEEi2tJ6i8LH",
            "name": "goal abc",
            "completed": false,
            "__typename": "Goal"
          },
          {
            "_id": "X4H4dFzGm5gkq5bPE",
            "name": "goal bcd",
            "completed": false,
            "__typename": "Goal"
          },
          {
            "_id": "hYunrXsMq7Gme7Xck",
            "name": "goal cde",
            "completed": false,
            "__typename": "Goal"
          }
        "__typename": "Resolution"
      }
    ],
    "user": {
      "_id": "WWv57KsvqWeAoBNHY",
      "__typename": "User"
    }
  }
}

Answer 1

作为对有类似问题的 apollo 用户的回答发布：

去除Resolution:的前缀，查询只取id

那么问题来了，你的datastore是怎么填充的？要从缓存中读取查询，之前需要在远程 API 上使用完全相同的参数调用查询。通过这种方式，apollo 知道特定参数的字段结果是什么。如果您从未使用要使用的参数调用远程端点但知道结果是什么，则可以绕过它并通过实现缓存解析器在本地解析查询。查看 documentation 中的示例。这里的商店包含一个图书列表（在您的例子中 resultions），并且可以通过简单的缓存查找来解决按 ID 查询单本书的问题。

即使目标对象存在，Apollo readQuery 也会失败？

Apollo readQuery Fails Even Though Target Object is Present?

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