javascript - 发送变异时出现 GraphQLError

Question

尝试使用 Apollo 客户端时出现以下语法错误

GraphQLError: Syntax Error: Expected Name, found $

我发送的查询就像这样

const CREATE_AUTHOR = gql`
  {
    mutation createAuthor($firstName: String, $lastName: String) {
      createAuthor(firstName: $firstName, lastName: $lastName) {
        firstName
        lastName
      }
    }
  }
`;

我在服务器上的类型定义是这样定义的

//...
  type Mutation {
    createAuthor(firstName: String! lastName: String!): Author
    updateAuthor(_id: String firstName: String lastName: String): Author
    deleteAuthor(_id: String): Author
  }

//...

我的问题是，我使用 gql 查看 apollo 文档时，什么是正确的

https://www.apollographql.com/docs/react/essentials/mutations.html#calling-mutations

他们的示例与我认为的实现相匹配，或者我可能误解了用法

const ADD_TODO = gql`
  mutation addTodo($type: String!) {
    addTodo(type: $type) {
      id
      type
    }
  }
`;

Answer 1

我明白了——很简单!不要用括号括住你的突变——它应该看起来像这样:

const CREATE_AUTHOR = gql`
  mutation createAuthor($firstName: String, $lastName: String) {
    createAuthor(firstName: $firstName, lastName: $lastName) {
      firstName
      lastName
    }
  }
`;