graphql - 错误 : Invalid AST Node: {"input":"** } on graphql mutation (Amplify client)

Question

我尝试在 api doc("https://aws-amplify.github.io/docs/cli-toolchain/graphql?sdk=js ") 上使用示例架构，如下面的多对多连接

type Post @model {
  id: ID!
  title: String!
  editors: [PostEditor] @connection(keyName: "byPost", fields: ["id"])
}

# Create a join model and disable queries as you don't need them
# and can query through Post.editors and User.posts
type PostEditor
  @model(queries: null)
  @key(name: "byPost", fields: ["postID", "editorID"])
  @key(name: "byEditor", fields: ["editorID", "postID"]) {
  id: ID!
  postID: ID!
  editorID: ID!
  post: Post! @connection(fields: ["postID"])
  editor: User! @connection(fields: ["editorID"])
}

type User @model {
  id: ID!
  username: String!
  posts: [PostEditor] @connection(keyName: "byEditor", fields: ["id"])
}

我创建了所有项目，然后尝试删除它们，但我失败了，尤其是在 PostEditor 上。

有一个删除 PostEditor 的突变，所以我像下面这样称呼它

API.graphql(graphqlOperation((deletePostEditor, {input: {id},})))

它失败并显示以下错误消息。

错误:AST 节点无效:{"input":"b2f7064c-af32-49cd-8c87-*******"}

我想我提供了正确的 ID。我在查询时检查了它。

Answer 1

您应该将参数作为 graphqlOperation 的第二个参数传递.所以，检查你的括号
API.graphql(graphqlOperation((deletePostEditor, {input: {id},}))) ,你有一对额外的括号

下面是正确的一个API.graphql(graphqlOperation(deletePostEditor, { input: { id } }))

第一个参数=deletePostEditor

第二个参数={输入:{id}}

小错误，不是吗？