Apollo客户端(React):是否可以从Query对象获取规范化数据

Question

react-apollo的Query.data对象以嵌套形式提供数据，如下所示：

{
"findUser": [
{
"__typename": "User",
"id": "5a6efb94b0e8c36f99fba013",
"email": "[e-mail]",
"posts": [
{
"__typename": "BlogPost",
"id": "5a6efb94b0e8c36f99fba016",
"title": "Dolorem voluptatem molestiae",
"comments": [
{
"__typename": "Comment",
"id": "5a6efb94b0e8c36f99fba019",
"message":
"Alias quod est voluptatibus aut quis sunt aut numquam."
},
{
"__typename": "Comment",
"id": "5a6efb94b0e8c36f99fba01b",
"message": "Harum quia asperiores nemo."
},
{
"__typename": "Comment",
"id": "5a6efb94b0e8c36f99fba01c",
"message": "Vel veniam consectetur laborum."
},
{
"__typename": "Comment",
"id": "5a6efb94b0e8c36f99fba01e",
"message":
"Possimus beatae vero recusandae beatae quas ut commodi laboriosam."
}
]
}
]
}
]
}

我有一个用例，我需要标准化形式的数据，比如：

{
"comments": {
"5a6efb94b0e8c36f99fba019": {
"id": "5a6efb94b0e8c36f99fba019",
"message": "Alias quod est voluptatibus aut quis sunt aut numquam."
},
"5a6efb94b0e8c36f99fba01b": {
"id": "5a6efb94b0e8c36f99fba01b",
"message": "Harum quia asperiores nemo."
},
"5a6efb94b0e8c36f99fba01c": {
"id": "5a6efb94b0e8c36f99fba01c",
"message": "Vel veniam consectetur laborum."
},
"5a6efb94b0e8c36f99fba01e": {
"id": "5a6efb94b0e8c36f99fba01e",
"message":
"Possimus beatae vero recusandae beatae quas ut commodi laboriosam."
}
},
"blogPosts": {
"5a6efb94b0e8c36f99fba016": {
"id": "5a6efb94b0e8c36f99fba016",
"title": "Dolorem voluptatem molestiae",
"comments": [
"5a6efb94b0e8c36f99fba019",
"5a6efb94b0e8c36f99fba01b",
"5a6efb94b0e8c36f99fba01c",
"5a6efb94b0e8c36f99fba01e"
]
}
},
"users": {
"5a6efb94b0e8c36f99fba013": {
"id": "5a6efb94b0e8c36f99fba013",
"email": "[e-mail]",
"posts": ["5a6efb94b0e8c36f99fba016"]
}
}
}

鉴于Apollo allready以规范化形式缓存数据的持久性，是否有一种方法可以访问规范化形式的相关响应数据，而无需使用单独的规范化过程，如使用graphql-normalizr库？

如果可能的话，我希望避免双重规范化的开销。

Answer 1

您应该能够使用client.readFragment()读取缓存中的扁平数据

请查看此处的文档：https://www.apollographql.com/docs/react/advanced/caching.html#readfragment