如何修复错误:输入“额外"在 apollo-server 中使用 graphql 定义了不止一次 [英] How to fix Error: Type "Extra" was defined more than once in apollo-server, using graphql

问题描述

问题

各位开发者，

我定义了两个在技术上具有相同类型的模式，但出现以下错误:

错误:类型Extra"被定义多次.

有没有办法解决这个问题?

抱歉，阿波罗对我来说是新手，我非常感谢您帮助解决这个问题.提前致谢！

架构 #1

const {gql} = require('apollo-server');typeDefs = gql `扩展类型查询{搜索(q:字符串！):[内容！]！}输入内容{id:字符串！标题:字符串！剧情简介:字符串！海报:字符串！评价:字符串！年:字符串！额外:[额外！]！}输入额外{频道:字符串！first_air_date:字符串！last_air_date:字符串！total_seasons:字符串！total_episodes: 字符串季节列表:[季节列表！]！cast_members:演员！相似系列:[相似系列！]！}输入季节列表{季节:Int剧集:[字符串]}输入类似系列{id:字符串！海报:字符串！}输入 CastMembers{创造者:创造者！members_list: [MembersList!]!}输入成员列表{members_info:[会员信息！]！}输入成员信息{人物:人物！}类型字符{real_name:字符串！字符:字符串！}类型创建者{名称:字符串！海报:字符串！}`const 解析器 ={询问:{搜索: async(_source , {q} , { dataSources}) =>{返回数据源.API.search(q).then(doc =>{返回文档内容});}}}模块.出口 ={类型定义，解析器}

架构 #2

const {gql} = require('apollo-server');const typeDefs = gql `扩展类型查询{系列(页面:Int！):[系列！]！}类型系列{id:字符串！标题:字符串！剧情简介:字符串！海报:字符串！评价:字符串！年:字符串！额外:[额外！]！}输入额外{频道:字符串！first_air_date:字符串！last_air_date:字符串！total_seasons:字符串！total_episodes: 字符串季节列表:[季节列表！]！cast_members:演员！相似系列:[相似系列！]！}输入季节列表{季节:Int剧集:[字符串]}输入类似系列{id:字符串！海报:字符串！}输入 CastMembers{创造者:创造者！members_list: [MembersList!]!}输入成员列表{members_info:[会员信息！]！}输入成员信息{人物:人物！}类型字符{real_name:字符串！字符:字符串！}类型创建者{名称:字符串！海报:字符串！}`;const 解析器 ={询问:{系列: async(_source , {page} , { dataSources }) =>{返回 dataSources.API.getAllSeries(page).then(doc =>{返回 doc.series});}}}模块.出口 = {类型定义，解析器}

问题错误

[nodemon] 由于更改而重新启动...[nodemon] 启动`node index.js`C:\Users\c\Desktop\cinemanight-graphql\node_modules\apollo-server-core\dist\ApolloServer.js:234throw new Error(errors.map(error => error.message).join('\n\n'));^错误:类型额外"被定义多次.类型SeasonList"被定义了不止一次.类型SimilarSeries"被定义了不止一次.类型CastMembers"被定义了不止一次.类型MembersList"被定义了不止一次.类型MembersInfo"被定义了不止一次.类型字符"被定义了不止一次.类型创建者"被定义了不止一次.在 ApolloServer.initSchema (C:\Users\c\Desktop\cinemanight-graphql\node_modules\apollo-server-core\dist\ApolloServer.js:234:23)在新的 ApolloServerBase (C:\Users\c\Desktop\cinemanight-graphql\node_modules\apollo-server-core\dist\ApolloServer.js:202:30)在新的 ApolloServer (C:\Users\c\Desktop\cinemanight-graphql\node_modules\apollo-server-express\dist\ApolloServer.js:59:9)在新的 ApolloServer (C:\Users\c\Desktop\cinemanight-graphql\node_modules\apollo-server\dist\index.js:24:9)在对象<匿名>(C:\Users\c\Desktop\cinemanight-graphql\index.js:4:16)在 Module._compile (internal/modules/cjs/loader.js:776:30)在 Object.Module._extensions..js (internal/modules/cjs/loader.js:787:10)在 Module.load (internal/modules/cjs/loader.js:653:32)在 tryModuleLoad (internal/modules/cjs/loader.js:593:12)在 Function.Module._load (internal/modules/cjs/loader.js:585:3)

解决方案

解决方案

在同一文件中使用接口和定义类型的概念纠正了问题.

<预><代码>const resolvers = require('./resolvers.js');const {gql} = require('apollo-server');const typeDefs = gql `扩展类型查询{系列(页面:Int！):[系列！]！电影(页面:Int！):[电影！]！}界面主内容{id:字符串！标题:字符串！剧情简介:字符串！海报:字符串！评价:字符串！年:字符串！}类型系列实现 MainContent {id:字符串！标题:字符串！剧情简介:字符串！海报:字符串！评价:字符串！年:字符串！额外:[SerieExtra！]！}类型电影实现 MainContent{id:字符串！标题:字符串！剧情简介:字符串！海报:字符串！评价:字符串！年:字符串！额外:[MovieExtra！]！}输入 SerieExtra {频道:字符串！first_air_date:字符串！last_air_date:字符串！total_seasons:字符串！total_episodes: 字符串季节列表:[季节列表！]！cast_members:演员！相似系列:[相似系列！]！}输入 MovieExtra {air_date:字符串！国家:字符串！运行时:字符串！评价:字符串！cast_members:演员！相似电影:[相似电影！]！}输入季节列表{季节:Int剧集:[字符串]}输入 SimilarSeries {id:字符串！海报:字符串！}输入类似电影{id:字符串！海报:字符串！}类型 CastMembers {创造者:创造者！members_list: [MembersList!] !}类型成员列表{members_info:[会员信息！]！}输入成员信息{人物:人物！}类型字符{real_name:字符串！字符:字符串！}类型创建者{名称:字符串！海报:字符串！}`;模块.出口 = {类型定义，解析器}

Problem

Hi devs,

I have defined two schemas that technically have the same type, but I get the following error:

  Error: Type "Extra" was defined more than once.

Is there a way to solve this problem?

My apologies, apollo is new to me and I would really appreciate your help to solve this. Thanks in advance!

Schema #1

const {gql} = require('apollo-server');


typeDefs = gql `
  extend type Query{
    search(q: String!): [Content!]!
  }

  type Content{
    id: String!
    title: String!
    sinopsis: String!
    poster: String!
    rating: String!
    year: String!
    extra: [Extra!]! 
  }

  type Extra{ 
    channel: String!
    first_air_date: String!
    last_air_date: String!
    total_seasons: String!
    total_episodes: String
    season_list: [SeasonList!]! 
    cast_members: CastMembers!
    similar_series: [SimilarSeries!]!
  }

  type SeasonList{ 
    season: Int 
    episodes: [String]
  }

  type SimilarSeries{ 
    id: String!
    poster: String!
  }

  type CastMembers{ 
    creator: Creator!
    members_list: [MembersList!]!
  }

  type MembersList{ 
    members_info: [MembersInfo!]!
  }

  type MembersInfo{
    characters: Characters!
  }

  type Characters{
    real_name: String!
    character: String!
  }

  type Creator{
    name: String! 
    poster: String!
  }
`

const resolvers ={
  Query:{
    search: async(_source , {q} , { dataSources}) =>{
      return dataSources.API.search(q)
        .then(doc =>{
          return doc.content
        });
    }
  }
}

module.exports ={
  typeDefs,
  resolvers
}

Schema #2

const {gql} = require('apollo-server');

const typeDefs = gql `
  extend type Query{
    series(page: Int!): [Series!]!
  }

  type Series{ 
    id: String!
    title: String!
    sinopsis: String!
    poster: String!
    rating: String!
    year: String!
    extra: [Extra!]! 
  }

  type Extra{ 
    channel: String!
    first_air_date: String!
    last_air_date: String!
    total_seasons: String!
    total_episodes: String
    season_list: [SeasonList!]! 
    cast_members: CastMembers!
    similar_series: [SimilarSeries!]!
  }

  type SeasonList{ 
    season: Int 
    episodes: [String]
  }

  type SimilarSeries{ 
    id: String!
    poster: String!
  }

  type CastMembers{ 
    creator: Creator!
    members_list: [MembersList!]!
  }

  type MembersList{ 
    members_info: [MembersInfo!]!
  }

  type MembersInfo{
    characters: Characters!
  }

  type Characters{
    real_name: String!
    character: String!
  }

  type Creator{
    name: String! 
    poster: String!
  }
`;

const resolvers ={
  Query:{
    series: async(_source , {page} , { dataSources }) =>{
      return dataSources.API.getAllSeries(page)
        .then(doc =>{
          return doc.series
        });
    }
  }
}

module.exports = {
  typeDefs,
  resolvers
}

Problem Error

[nodemon] restarting due to changes...
[nodemon] starting `node index.js`
C:\Users\c\Desktop\cinemanight-graphql\node_modules\apollo-server-core\dist\ApolloServer.js:234
                throw new Error(errors.map(error => error.message).join('\n\n'));
                ^

Error: Type "Extra" was defined more than once.

Type "SeasonList" was defined more than once.

Type "SimilarSeries" was defined more than once.

Type "CastMembers" was defined more than once.

Type "MembersList" was defined more than once.

Type "MembersInfo" was defined more than once.

Type "Characters" was defined more than once.

Type "Creator" was defined more than once.
    at ApolloServer.initSchema (C:\Users\c\Desktop\cinemanight-graphql\node_modules\apollo-server-core\dist\ApolloServer.js:234:23)     
    at new ApolloServerBase (C:\Users\c\Desktop\cinemanight-graphql\node_modules\apollo-server-core\dist\ApolloServer.js:202:30)        
    at new ApolloServer (C:\Users\c\Desktop\cinemanight-graphql\node_modules\apollo-server-express\dist\ApolloServer.js:59:9)
    at new ApolloServer (C:\Users\c\Desktop\cinemanight-graphql\node_modules\apollo-server\dist\index.js:24:9)
    at Object.<anonymous> (C:\Users\c\Desktop\cinemanight-graphql\index.js:4:16)
    at Module._compile (internal/modules/cjs/loader.js:776:30)
    at Object.Module._extensions..js (internal/modules/cjs/loader.js:787:10)
    at Module.load (internal/modules/cjs/loader.js:653:32)
    at tryModuleLoad (internal/modules/cjs/loader.js:593:12)
    at Function.Module._load (internal/modules/cjs/loader.js:585:3)

解决方案

SOLUTION

Problem corrected using the concept of interfaces and defining types in the same file.

const resolvers = require('./resolvers.js');
const {gql} = require('apollo-server');

const typeDefs = gql `
  extend type Query{
    series(page: Int!): [Series!]!
    movies(page: Int!): [Movies!]!
  }

  interface MainContent{
    id: String!
    title: String!
    sinopsis: String!
    poster: String!
    rating: String!
    year: String!
  }

  type Series implements MainContent {
    id: String!
    title: String!
    sinopsis: String!
    poster: String!
    rating: String!
    year: String!
    extra: [SerieExtra!]!
  }

  type Movies implements MainContent{
     id: String!
    title: String!
    sinopsis: String!
    poster: String!
    rating: String!
    year: String!
    extra: [MovieExtra!]!
  }

  type SerieExtra {
    channel: String!
    first_air_date: String!
    last_air_date: String!
    total_seasons: String!
    total_episodes: String
    season_list: [SeasonList!] !
    cast_members: CastMembers!
    similar_series: [SimilarSeries!] !
  }

  type MovieExtra {
    air_date: String!
    country: String!
    runtime: String!
    rated: String!
    cast_members: CastMembers!
    similar_movies: [SimilarMovies!] !
  }

  type SeasonList {
    season: Int
    episodes: [String]
  }

  type SimilarSeries {
    id: String!
    poster: String!
  }

  type SimilarMovies {
    id: String!
    poster: String!
  }

  type CastMembers {
    creator: Creator!
    members_list: [MembersList!] !
  }

  type MembersList {
    members_info: [MembersInfo!] !
  }

  type MembersInfo {
    characters: Characters!
  }

  type Characters {
    real_name: String!
      character: String!
  }

  type Creator {
    name: String!
    poster: String!
  }
`;


module.exports = {
  typeDefs,
  resolvers
}

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