graphql/dataloader

nested queries and info

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#272 创建于 2021年5月30日

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 (1 评论) (2 反应) (0 负责人)JavaScript (12,520 star) (556 fork)batch import
help wanted

描述

I have a query that looks like this:

movies {
  name
  actors {
    firstname
    lastname
    movies {
      name
    }
  }
}

at the moment it is very easy for me to use the dataloader to query the actors of each movie but I have two problems:

  1. how do I use the dataloader to query the children of the children? In my case the movies of an actor
  2. how can I pass the parsed info data (so I know what fields are queried) to the dataloader, without reparsing the info, because as you know, the children-resolver is invoked for each parent

would be nice to see a simple example thanks in advanced!

贡献者指南

技术栈
javascriptnodejs
领域
backendapi
议题类型
documentation
难度面向新贡献者的预计实现难度，1 表示很小改动，5 表示专家级工作。
2
预计时间有经验贡献者完成调查、实现、测试并准备 pull request 的粗略时间范围。
under 1 hour
活动状态议题当前的可参与程度：新鲜、活跃、陈旧、阻塞或等待维护者输入。
stale
清晰度议题是否清楚说明期望改动、验收标准和下一步。
needs investigation
前置要求
basic knowledge of GraphQLfamiliarity with DataLoader
新手友好度1-100 的估计分数，表示该议题对首次贡献者的友好程度。
80
研究方向
This issue requests an example of using DataLoader with nested queries and passing parsed GraphQL info to avoid re parsing. To address it, look at how batched loading can be applied in a nested resolver context, possibly referencing existing examples in the DataLoader documentation or community solutions. Consider implementing a simple demo that shows loading actors and their nested movies using a parent child key pattern.