GraphQL突变不能与RuntimeWiring一起使用。newRuntimeWiring（）

我在GraphQLJava中定义了一个简单的模式来添加

Book

并获取

[Book]

。我的模式如下：

schema {
 query: Query
 mutation : Mutation
}

type Query {
 allBooks: [Book]
 book(id: String): Book
}

type Book {
  isn: String
  title: String
  publisher: String
  author: String
  publishedDate: String
}

input BookType {
  isn: String
  title: String
  publisher: String
  author: String
  publishedDate: String
}

type Mutation {
  newBook(
      isn: String!,
      title: String!,
      publisher: String!,
      authors:String!,
      publishedDate: String!
  ): Book
}

我创建了如下的运行时连接：

RuntimeWiring.newRuntimeWiring()
  .type("Query", typeWiring ->
    typeWiring.dataFetcher("allBooks", allBooksDataFetcher))
  .type("Mutation", typeWiring ->
    typeWiring.dataFetcher("newBook", addBooksDataFetcher))
  .build();

mutation ArbitraryOperationName {
  newBook(
    isn:"1",
    title: "test title",
    publisher: "test publisher",
    authors:"test author",
    publishedDate: "2 Nov 2018"
  ) {
    title
  }
}

allBooks

查询工作正常，但

newBook

变异不工作，并出现以下错误：

"errors": [
  {
    "validationErrorType": "FieldUndefined",
    "message": "Validation error of type FieldUndefined: Field oneBook is undefined",
    "locations": [
      {
        "line": 3,
        "column": 3
      }
    ],
    "errorType": "ValidationError"
  }
],
  "data": null,
  "extensions": null
}

邮递员的变异是：

{
  newBook(
    isn:"1",
    title: "test title",
    publisher: "test publisher",
    authors:"test author",
    publishedDate: "2 Nov 2018"
  ) {
    title
  }
}

---

请帮帮我。它并没有选择突变类型，但查询工作绝对正常。我遗漏了什么吗？

我不确定错误指的是什么，但在执行变异时确实需要包含操作（

query

vs

mutation

）。也就是说，您的请求应该更像这样：

RuntimeWiring.newRuntimeWiring()
  .type("Query", typeWiring ->
    typeWiring.dataFetcher("allBooks", allBooksDataFetcher))
  .type("Mutation", typeWiring ->
    typeWiring.dataFetcher("newBook", addBooksDataFetcher))
  .build();

mutation ArbitraryOperationName {
  newBook(
    isn:"1",
    title: "test title",
    publisher: "test publisher",
    authors:"test author",
    publishedDate: "2 Nov 2018"
  ) {
    title
  }
}

编写查询时，您可以使用简写符号并省略

query

关键字，但突变必须始终包含

mutation

，以表明您正在进行突变而不是查询。

谢谢Daniel，它起到了作用：）我没有包含突变关键字。非常感谢：）