liangwei0101 / egg-demo Goto Github PK

大佬的项目非常优雅，我想用在一个项目上，但是很需要 文件上传功能，也需要订阅功能，请求大佬增加。

目前在用分支：egg-ts-mongoose-graphql-websocket

如果Schema中定义的类型关联么一个User

XXXSchema{
belong: {type: Schema.Types.ObjectId, ref: 'User', select: true},
}

那在这个结构中的Interface对应的类型应该是什么呢？

IXXXSchema{
belong:  ..???
}

谢谢

您好，看到您这个关于graphql在ts下的用法，想学习下，按照您的代码运行，egg服务正常启动，但是graphql服务失败，辛苦您，有时间时帮看下，谢谢！
失败信息：
[ '/Users/xugy/xugy/egg-space/mt.ik.sunyata/app/graphql/schemaResolver/studentResolver.ts']
(node:89254) DeprecationWarning: current Server Discovery and Monitoring engine is deprecated, and will be removed in a future version. To use the new Server Discover and Monitoring engine, pass option { useUnifiedTopology: true } to the MongoClient constructor.
(node:89254) DeprecationWarning: This Package got moved, please use @hasezoey/typegoose | github:hasezoey/typegoose
2019-12-28 18:15:43,376 INFO 89254 graphql server init
(node:89254) DeprecationWarning: collection.ensureIndex is deprecated. Use createIndexes instead.
node_redis: Warning: Redis server does not require a password, but a password was supplied.
node_redis: Warning: Redis server does not require a password, but a password was supplied.
2019-12-28 18:15:43,470 INFO 89243 [master] egg started on http://127.0.0.1:7001 (2912ms) with STICKY MODE!
2019-12-28 18:18:08,043 ERROR 89254 [-/127.0.0.1/-/10ms POST /graphql?] nodejs.GraphQLError: Syntax Error: Unexpected
at syntaxError (/Users/xugy/xugy/egg-space/mt.ik.sunyata/node_modules/graphql/error/syntaxError.js:15:10)
at Parser.unexpected (/Users/xugy/xugy/egg-space/mt.ik.sunyata/node_modules/graphql/language/parser.js:1463:41)
at Parser.parseDefinition (/Users/xugy/xugy/egg-space/mt.ik.sunyata/node_modules/graphql/language/parser.js:157:16)
at Parser.many (/Users/xugy/xugy/egg-space/mt.ik.sunyata/node_modules/graphql/language/parser.js:1518:26)
at Parser.parseDocument (/Users/xugy/xugy/egg-space/mt.ik.sunyata/node_modules/graphql/language/parser.js:111:25)
at Object.parse (/Users/xugy/xugy/egg-space/mt.ik.sunyata/node_modules/graphql/language/parser.js:36:17)
at Object.buildSchemaFromTypeDefinitions (/Users/xugy/xugy/egg-space/mt.ik.sunyata/node_modules/graphql-tools/src/generate/buildSchemaFromTypeDefinitions.ts:37:19)
at makeExecutableSchema (/Users/xugy/xugy/egg-space/mt.ik.sunyata/node_modules/graphql-tools/src/makeExecutableSchema.ts:52:18)
at Application.get (/Users/xugy/xugy/egg-space/mt.ik.sunyata/node_modules/egg-graphql/lib/load_schema.js:72:31)
at /Users/xugy/xugy/egg-space/mt.ik.sunyata/node_modules/egg-graphql/app/middleware/graphql.js:68:23
at dispatch (/Users/xugy/xugy/egg-space/mt.ik.sunyata/node_modules/koa/node_modules/koa-compose/index.js:42:32)
at passportSession (/Users/xugy/xugy/egg-space/mt.ik.sunyata/node_modules/egg-passport/lib/framework.js:59:12)
at dispatch (/Users/xugy/xugy/egg-space/mt.ik.sunyata/node_modules/koa/node_modules/koa-compose/index.js:42:32)
at passportInitialize (/Users/xugy/xugy/egg-space/mt.ik.sunyata/node_modules/egg-passport/lib/framework.js:36:12)
at dispatch (/Users/xugy/xugy/egg-space/mt.ik.sunyata/node_modules/koa/node_modules/koa-compose/index.js:42:32)
at /Users/xugy/xugy/egg-space/mt.ik.sunyata/node_modules/egg-development/app/middleware/egg_loader_trace.js:9:56
message: "Syntax Error: Unexpected "
locations: [{"line":1,"column":1}]
headers: {"Access-Control-Allow-Origin":"*","vary":"Origin"}
pid: 89254
hostname: xuMacBook-Pro.local

首先对作者表示非常非常的感谢，终于找到一个TS的框架能在上面做东西了（之前弄ts框架浪费好长好长时间），仔细看了下代码，有一个设计没有太明白，但在主页上没有找到作者的联系方式，只能在这里提问。

下面这段代码为什么要这样设计，会有什么好处呢？如果我要对它进行扩展字段，我应该怎么写才算是合理了。谢谢了。

并且希望能看到大佬的邮箱，可以向您交流学习。

/**
  * 用户字段接口
*/
export interface IUser {

  userNo: number;

  userName: string;
}

/**
  * 用户Document（实例方法在这写）
*/
export interface IUserDocument extends IUser, Document {

  /**
  * 实例方法接口（名称需要和Schema的方法名一样）
  */
 userInstanceTestMethods: () => IUser;
}

/**
  * 静态方法接口
*/
export interface IUserModel extends Model<IUserDocument> {

  /**
   * 静态方法
   */
  userStaticTestMethods: () => IUser;
}

export const UserModel = model<IUserDocument, IUserModel>('User', UserSchema);

$ yarn tsc
yarn run v1.22.4
$ ets && tsc -p tsconfig.json
[egg-ts-helper] create typings/app/extend/application.d.ts (4ms)
[egg-ts-helper] create typings/app/controller/index.d.ts (1ms)
[egg-ts-helper] create typings/app/model/index.d.ts (1ms)
[egg-ts-helper] create typings/config/index.d.ts (15ms)
[egg-ts-helper] create typings/config/plugin.d.ts (1ms)
[egg-ts-helper] create typings/app/service/index.d.ts (1ms)
[egg-ts-helper] create typings/app/index.d.ts (1ms)
app/extend/application.ts:7:15 - error TS2784: 'get' and 'set' accessors cannot declare 'this' parameters.

7 get graphql(this: Application): GraphQL {
~~~~~~~~~~~~~~~~~

Found 1 error.

error Command failed with exit code 2.
info Visit https://yarnpkg.com/en/docs/cli/run for documentation about this command.

因为警告信息，无法启动生产环境的服务端

于是更新 typegoose 为 @typegoose/typegoose 后，因为新版typegoose去掉一些接口，程序出现很多报错

相关分支：egg-ts-mongoose-graphql-websocket

是关于 egg + egg-graphql + egg-mongoose + graphql-compose + graphql-compose-mongoose的

开始

我通过egg-mongoose创建了model，考虑到不想维护两套schema，所以采用graphql-compose-mongoose，将mongoose schema转成graphql schema
我的实现步奏：
1.安装egg-graphql后,写入配置文件 config/config.default.ts

  config.graphql = {
    router: '/graphql',
    // 是否加载到 app 上，默认开启
    app: true,
    // 是否加载到 agent 上，默认关闭
    agent: false,
    // 是否加载开发者工具 graphiql, 默认开启。路由同 router 字段。使用浏览器打开该可见。
    graphiql: true,
    //是否设置默认的Query和Mutation, 默认关闭
    defaultEmptySchema: true,
  };

2.像平常一样创建mongoose model, app/model/case.ts

module.exports = (app) => {
  const schemaName = 'Case';
  const Schema = app.mongoose.Schema;
  const SchemaTypes = Schema.Types;
  const conn = app.mongooseDB.get('main');
  const mongooseSchema = new Schema(
    {
      name: { type: String, trim: true, required: true, match: /^.{1,20}$/ }, // 案例名称
      description: { type: String, trim: true, match: /^[\s\S]{1,200}$/ }, // 描述
    },
    { timestamps: true }
  );

  return conn.model(schemaName, mongooseSchema);
};

3.在app/graphql/case/resolver.js

const { composeMongoose  } = require('graphql-compose-mongoose');
const { schemaComposer } = require('graphql-compose');

module.exports = (app) => {
  const ctx = app.createAnonymousContext();
  const modelName = 'Case';
  // 这一步 我理解的就是 将mongoose schema转为 graphql schema
  const graphqlTC = composeMongoose(ctx.model[modelName]);
  console.log(graphqlTC)
  schemaComposer.Query.addFields({
    [modelName + 'findById']: graphqlTC.getResolver('findById'),
    [modelName + 'findByIds']: graphqlTC.getResolver('findByIds'),
    [modelName + 'findOne']: graphqlTC.getResolver('findOne'),
    [modelName + 'findMany']: graphqlTC.getResolver('findMany'),
    [modelName + 'count']: graphqlTC.getResolver('count'),
    [modelName + 'pagination']: graphqlTC.getResolver('pagination'),
    [modelName + 'connection']: graphqlTC.getResolver('connection'),
  });
  schemaComposer.Mutation.addFields({
    [modelName + 'updateById']: graphqlTC.getResolver('updateById'),
    [modelName + 'updateOne']: graphqlTC.getResolver('updateOne'),
    [modelName + 'updateMany']: graphqlTC.getResolver('updateMany'),
    [modelName + 'removeById']: graphqlTC.getResolver('removeById'),
    [modelName + 'removeOne']: graphqlTC.getResolver('removeOne'),
    [modelName + 'removeMany']: graphqlTC.getResolver('removeMany'),
    [modelName + 'createOne']: graphqlTC.getResolver('createOne'),
    [modelName + 'createMany']: graphqlTC.getResolver('createMany'),
  });

};

这是graphql-compose-mongoose， 如果您方便的话 希望您能远程指导我一下，QQ：676114734 不胜感激