在GraphQL和MongoDB中加载关系数据

这是我的模式:

type User {
    _id: ID!
    username: String
    email: String!
    firstName: String
    lastName: String
    avatar: String
    createdAt: Date!
    updatedAt: Date!
}

type Tweet {
    _id: ID!
    text: String!
    user: User!
    favoriteCount: Int!
    createdAt: Date!
    updatedAt: Date!
}

这是我的 Tweet

import mongoose, { Schema } from 'mongoose';

const TweetSchema = new Schema({
    text: {
        type: String,
        minLength: [5, 'Your tweet is too short.'],
        maxLength: [144, 'Your tweet is too long.']
    },
    user: {
        type: Schema.Types.ObjectId,
        ref: 'User'
    },
    favoriteCount: {
        type: Number,
        default: 0
    }
}, { timestamps: true });

export default mongoose.model('Tweet', TweetSchema);

import { graphqlExpress } from 'apollo-server-express';
import { makeExecutableSchema } from 'graphql-tools';

import typeDefs from '../graphql/schema';
import resolvers from '../graphql/resolvers';

const schema = makeExecutableSchema({
    typeDefs,
    resolvers
});

const app = express();
app.use(
    '/graphql', 
    graphqlExpress(req => ({ 
        schema
    }))
);

我使用以下代码模拟一些用户并使用faker发布推特,如下所示:

https://pastebin.com/raw/kJ9m8KjR

当整个程序运行时,我可以看到mongodb中充满了与用户链接的虚拟推文,如下所示: