无效的GraphQL架构

我有以下GraphQL模式：

type User {
  id: String!
  email: String
}

input CreateUserDto {
  email: String!
  password: String!
}

input CredentialsDto {
  email: String!
  password: String!
}

type CreateUserResponseDto {
  id: String!
}

type TokenResponseDto {
  token: String!
}

type Mutation {
  signup(input: CreateUserDto!): CreateUserResponseDto!
}

type Query {
  user(id: Int!): User

  auth {
    login(credentials: CredentialsDto!): TokenResponseDto
  }
}

出于某种原因，我得到以下错误：

Syntax Error: Expected :, found {

GraphQL request (13:8)
12: 
13:   auth {
           ^
14:     login(credentials: CredentialsDto!): TokenResponseDto

Syntax Error: Expected Name, found {

GraphQL request (13:9)
12: 
13:   auth: {
            ^
14:     login(credentials: CredentialsDto!): TokenResponseDto

What am I doing wrong?

如果在auth属性后添加：则会出现以下错误：

Syntax Error: Expected :, found {

GraphQL request (13:8)
12: 
13:   auth {
           ^
14:     login(credentials: CredentialsDto!): TokenResponseDto

Syntax Error: Expected Name, found {

GraphQL request (13:9)
12: 
13:   auth: {
            ^
14:     login(credentials: CredentialsDto!): TokenResponseDto

What am I doing wrong?

---

定义架构时不能使用匿名对象。必须为auth字段创建单独的类型才能返回：

type Auth {
  login(credentials: CredentialsDto!): TokenResponseDto
}

type Query {
  user(id: Int!): User
  auth: Auth
}

假设您使用的是apollo server或graphql工具，那么您的解析器需要如下所示：

const resolvers = {
  Query: {
    user: () => {
      // TODO: resolve field
    }
    auth: () => ({}) // return an empty object
  },
  Auth: {
    login: () => {
      // TODO: resolve field  
    }
  }
}

---

需要记住的是，解析器对象只是一个类型名映射，每个类型名映射到另一个字段名映射。

是的，刚刚解决了这个问题。但是如何解析登录字段呢？我遇到了这样一个错误：Query.login是在解析器中定义的，而不是在schemaAs中。错误显示，您的查询类型中没有名为login的字段，因此您不能为它定义解析器。请参阅我的编辑。