Mongoose

Mongoose

• MongoDB ODM(Object Document Mapper)

예시

• 연결 (database.js)

    import Mongoose from "mongoose";

    export async function connectDB() {
        return Mongoose.connect(url, options);
    }

    export function useVirtualId(schema) {
      schema.virtual('id').get(function() {
          return this._id.toString(); // this._id는 object이므로 toString해준다.
      });

      schema.set("toJSON", {virtuals : true}); // id정보 json에 포함
      schema.set("toObject", {virtuals : true}); // console.log에 가상의 필드 추가
    }

• userSchema

    import Mongoose from "mongoose";
    import {useVirtualId} from "database.js 경로";

    const userSchema = new Mongoose.Schema({
        username : {type : String, required : true},
          name : {type : String, required : true},
          email : {type : String, required : true},
          password : {type : String, required : true},
          url : String
    });

    useVirtualId(userSchema);
    const User = Mongoose.model("User", userSchema); // User의 collection을 userschema와 연결

    export async function createUser(user) {
        return new User(user).save().then(data => data.id); // data안에 있는 id를 전달
    }

    export async function findByUsername(username) {
        return User.findOne({username});
    }

    export async function findById(id) {
        return User.findById({id});
    }

    export async function updateUser(id, email) {
        return User.findByIdAndUpdate(id, {email}, {returnOriginal : false}); // update된 정보를 return
    }

    export async function removeUser(id) {
        return User.findByIdAndDelete(id);
    }

참고자료

• Mongoose.connect options : https://runebook.dev/ko/docs/mongoose/connections
• Mongoose API Query : https://mongoosejs.com/docs/api/query.html