如何在GraphQL游乐场中执行突变？

Question

我的目标：我想在GraphQL Playground中执行一个突变。

我的架构如下：

type Mutation {
    # Add a new comment
    addComment(comment: InputComment!): Comment
}

# Input type for a new Comment
input InputComment {
    # The comment text
    comment: String!
    # The id of the author
    author: String!
    # The id of the talk
    talkId: Long!
}

我发现了很多例子，如果有的话，这些例子会起作用：

type Mutation {
    # Add a new comment
    addComment(comment: String!, author: String!, talkId: Long!): Comment
}

但是我不明白如何在GraphQL Playground中即时创建类型为InputComment的对象。

例如，在最后一种情况下，我可以运行：

mutation {
  addComment(
    comment: "My great comment"
    author: "The great author"
    talkId: 123
  ) {
    id
  }
}

Answer 1

还要在您的架构中添加评论类型

type Comment {
   id: ID! 
   comment: String!
   author: String!
   talkId: Long!
}

# Input type for a new Comment
input InputComment {
    comment: String!
    author: String!
    talkId: Long!
}

type Mutation {
    # Add a new comment
    addComment(comment: InputComment!): Comment
}

##Then query should be
mutation {
  addComment(comment: {comment: "test comment", author: "Sample name", talkId: 123}) {
    id,
    comment,
    author,
    talkId
  }
}

Answer 2

mutation {
  addComment(comment: {comment: "Cool", author: "Me", talkId: 12}) {
    createdOn
    id
  }
}