graphql必填字段方法

Posted 2023-03-10

【中文标题】graphql必填字段方法

【英文标题】：graphql required fields approach

【发布时间】：2017-10-27 16:44:23

【问题描述】：

这是我的 graphql 架构、查询和突变。

我在架构中用“！”标记了必填字段

如何创建突变以添加新客户端？

我真的需要再次编写相同的必填字段吗？

点赞createClient(contactMethod: String!, hearAbout: String! ......... ): Client

---

const typeShard = `
  type ClientProfile 
    name: String!
    surname: String!
    address: String
    language: String!
  

  type Client 
    _id: String
    isEdit: Boolean
    createdAt: String
    shortId: Int
    profile: ClientProfile
    comments: String
    contactMethod: String!
    hearAbout: String!
    leadAgentId: String
    branchId: String!
  
`;

const queryShard = `
  getAllClients: [Client]
`;

const mutationShard = `
  removeClient(shortId : Int!): Client
  createClient(contactMethod: String!, hearAbout: String!   .........  ): Client
`;

const resolvers = 
  Query: 
    getAllClients: () => MongoClients.find().fetch(),
  ,
  Mutation: 
    removeClient(root,  shortId ) 
      const client = MongoClients.findOne( shortId );
      if (!client) throw new Error(`Couldn't find client with id $shortId`);
      MongoClients.remove( shortId );
      return client;
    ,
    createClient: (_, args) => 
      return MongoClients.insert(args);
    ,
  ,
;

【参考方案1】：

您不需要为每个突变编写相同的字段。你可以定义一个input 类型。请看看这个cheat sheet。

所以在你的情况下，它可能看起来像：

const typeShard = `
  type ClientProfile 
    name: String!
    surname: String!
    address: String
    language: String!
  

  type Client 
    _id: String
    isEdit: Boolean
    createdAt: String
    shortId: Int
    profile: ClientProfile
    comments: String
    contactMethod: String!
    hearAbout: String!
    leadAgentId: String
    branchId: String!
  
  input ClientInput 
    contactMethod: String!
    hearAbout: String!
    .....
  
`;

const mutationShard = `
  removeClient(shortId : Int!): Client
  createClient(clientInput: ClientInput!): Client
`;

【讨论】：

感谢您的回答。我读过它。但是可以结合输入和输出吗？在许多情况下，这将是代码重复。有什么想法吗？

我认为不可能