阿波罗反应钩的数组对象突变

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问题描述

所以我正在使用MongoDB，Apollo，React Native(Expo)和Node

进行Marn堆栈

我被困试图弄清楚如何上传一个对象数组. i.E有一系列镜头的帖子

它在Apollo Playground中都有正常工作:

mutation createPost {
  createPost(
    input: {
      shots: [
        {
          title: "Test test test"
          content: "Test test test"
          image: "https://source.unsplash.com/random/768x768"
        }
        {
          title: "Best best best"
          content: "Test test test"
          image: "https://source.unsplash.com/random/768x768"
        }
      ]
    }
  ) {
    id
    shots {
      id
    }
  }
}

，这是我的服务器模式:

  type Post {
    id: ID!
    shots: [Shot]!
  }

  type Shot {
    id: ID!
    title: String
    content: String
    image: String
  }

  input CreatePostInput {
    shots: [ShotInput]!
  }

  input ShotInput {
    title: String!
    content: String!
    image: String!
  }

现在这是我的反应变异，我陷入了困境的部分.因为它产生错误，我不知道如何解决它. 如果我用静态对象数组替换$镜头，它可以工作！我需要使用一些花哨的@relation标签还是什么?

const CREATE_POST = gql`
  mutation createPost($shots: [ShotInput]) {
    createPost(input: { shots: $shots }) {
      id
      shots {
        id
      }
    }
  }
`;

这是我如何触发错误的方式:

<Button
  title="Button"
  onPress={() => {
    createPost({
      variables: { shots: [{ title: 'test', content: 'test', image: 'test' }] },
    });
  }}
/>

，这是我无法动摇的错误

[GraphQL error]: Message: Variable "$shots" of type "[ShotInput]" used in position expecting type "[ShotInput]!"., Location: [object Object],[object Object], Path: undefined

无论这个小的障碍如何，我得说阿波罗是蜜蜂的膝盖！绝对令人敬畏!!!

推荐答案

我认为它.我这么近一段时间！

我缺少的只是一个感叹号"！"在createpost()

const CREATE_POST = gql`
  mutation createPost($shots: [ShotInput!]! <===== Right here) {
    createPost(input: { shots: $shots }) {
      id
      shots {
        id
      }
    }
  }
`;

哎哟伤害！游戏中的许多变量.经验教训!!!

本文地址：https://www.itbaoku.cn/post/1938106.html

百度翻译此文有道翻译此文

问题描述

So I am doing a MARN stack using MongoDB, Apollo, React Native (Expo) and Node

I am stuck trying to figure out how to upload an array of object. i.e A post with an array of shots

It is all working fine in the Apollo playground with this:

mutation createPost {
  createPost(
    input: {
      shots: [
        {
          title: "Test test test"
          content: "Test test test"
          image: "https://source.unsplash.com/random/768x768"
        }
        {
          title: "Best best best"
          content: "Test test test"
          image: "https://source.unsplash.com/random/768x768"
        }
      ]
    }
  ) {
    id
    shots {
      id
    }
  }
}

And this is my server schema:

  type Post {
    id: ID!
    shots: [Shot]!
  }

  type Shot {
    id: ID!
    title: String
    content: String
    image: String
  }

  input CreatePostInput {
    shots: [ShotInput]!
  }

  input ShotInput {
    title: String!
    content: String!
    image: String!
  }

Now this is my react mutation, the part I am stuck on. Because it is generating an error and I have no idea how to fix it. If I replace $shots with a static array of objects, it works! Do I need to use some fancy @relation tag or something?

const CREATE_POST = gql`
  mutation createPost($shots: [ShotInput]) {
    createPost(input: { shots: $shots }) {
      id
      shots {
        id
      }
    }
  }
`;

This is how I am triggering the error:

<Button
  title="Button"
  onPress={() => {
    createPost({
      variables: { shots: [{ title: 'test', content: 'test', image: 'test' }] },
    });
  }}
/>

And this is the error I can't shake

[GraphQL error]: Message: Variable "$shots" of type "[ShotInput]" used in position expecting type "[ShotInput]!"., Location: [object Object],[object Object], Path: undefined

Regardless of this little hurdle, I gotta say that Apollo is the bees knees! Absolute awesomeness!!!