使用 winston-mongodb 后收到警告 [当前服务器发现和监控引擎已弃用]

Posted 2023-03-07

【中文标题】使用 winston-mongodb 后收到警告 [当前服务器发现和监控引擎已弃用]

【英文标题】：getting the warning [current Server Discovery and Monitoring engine is deprecated] after using winston-mongodb

【发布时间】：2020-05-12 20:20:03

【问题描述】：

安装winston-mongodb 后，我收到以下警告：

(node:9316) DeprecationWarning: 当前服务器发现和 监控引擎已弃用，未来将被移除 版本。要使用新的服务器发现和监控引擎，请通过 选项 useUnifiedTopology: true 到 MongoClient 构造函数。

这是我的 app.js：

require('express-async-errors');

const express = require('express'),
    config = require('config'),
    morgan = require('morgan'),
    helmet = require('helmet'),
    winston = require('winston'),
    mongoose = require('mongoose');

require('winston-mongodb');


mongoose.connect("mongodb://localhost:27017/wsep",
     useNewUrlParser: true, useFindAndModify: false, useCreateIndex: true, useUnifiedTopology: true )
    .then(connect =>  console.log("connected to mongo db...") )
    .catch(error =>  console.log("could not connect to mongo db ...") )

winston.add(new winston.transports.MongoDB(
    db: 'mongodb://localhost:27017/wsep'
));

如果我删除/评论以下 sn-p 代码，上述警告将消失：

winston.add(new winston.transports.MongoDB(
    db: 'mongodb://localhost:27017/wsep'
));

编辑：

package.json

  "name": "backend-api",
  "version": "1.0.0",
  "description": "",
  "main": "index.js",
  "scripts": 
    "dev": "nodemon app.js",
    "start": "node app.js"
  ,
  "engines": 
    "node": "13.5.0"
  ,
  "keywords": [],
  "author": "",
  "license": "ISC",
  "dependencies": 
    "bcrypt-nodejs": "0.0.3",
    "compression": "^1.7.4",
    "config": "^3.2.5",
    "express": "^4.17.1",
    "express-async-errors": "^3.1.1",
    "helmet": "^3.21.2",
    "joi": "^14.3.1",
    "jsonwebtoken": "^8.5.1",
    "jwt-token-encrypt": "^1.0.4",
    "lodash": "^4.17.15",
    "mongoose": "^5.8.9",
    "multer": "^1.4.2",
    "winston": "^3.2.1",
    "winston-mongodb": "^5.0.1"
  ,
  "devDependencies": 
    "nodemon": "^2.0.2"
  

【参考方案1】：

您可以将useUnifiedTopology: true 添加到winston-mongodb 的选项块中 像这样：

winston.add(new winston.transports.MongoDB(
    db: 'mongodb://localhost:27017/wsep',
    options: 
        useUnifiedTopology: true,
    
));

【参考方案2】：

将useUnifiedTopology:true 传递给对我有用的选项。请参阅下面的示例：

// Connect to Mongo
mongoose.set("useNewUrlParser", true);
mongoose.set("useUnifiedTopology", true);

mongoose
  .connect(db)
  .then(() => console.log("MongoDB Connected..."))
  .catch(() => console.log(err));