AWS文档DB不从Node.js应用程序工作

Question

Express.js代码

    var mongoose = require("mongoose");
    const { db } = require("../../models/userModel");
    mongoose.connect("mongodb://cnoxbeta:abdf1234@cnox-beta-document-db.cluster-cvzxy5kwx8pn.us-west-2.docdb.amazonaws.com:27017/cnox?ssl=true&ssl_ca_certs=rds-combined-ca-bundle.pem&replicaSet=rs0&readPreference=secondaryPreferred&retryWrites=false");

错误：

    (node:1239) UnhandledPromiseRejectionWarning: Error: error:0909006C:PEM routines:get_name:no start line
        at Object.createSecureContext (_tls_common.js:149:17)
        at Object.connect (_tls_wrap.js:1580:48)
        at makeConnection (/home/ubuntu/cnox-webbackend/node_modules/mongoose/node_modules/mongodb/lib/cmap/connect.js:274:31)
        at connect (/home/ubuntu/cnox-webbackend/node_modules/mongoose/node_modules/mongodb/lib/cmap/connect.js:33:5)
        at checkServer (/home/ubuntu/cnox-webbackend/node_modules/mongoose/node_modules/mongodb/lib/sdam/monitor.js:201:27)
        at /home/ubuntu/cnox-webbackend/node_modules/mongoose/node_modules/mongodb/lib/sdam/monitor.js:231:9
        at executeAndReschedule (/home/ubuntu/cnox-webbackend/node_modules/mongoose/node_modules/mongodb/lib/utils.js:791:9)
        at makeInterruptibleAsyncInterval (/home/ubuntu/cnox-webbackend/node_modules/mongoose/node_modules/mongodb/lib/utils.js:798:9)
        at Monitor.connect (/home/ubuntu/cnox-webbackend/node_modules/mongoose/node_modules/mongodb/lib/sdam/monitor.js:87:71)
        at Server.connect (/home/ubuntu/cnox-webbackend/node_modules/mongoose/node_modules/mongodb/lib/sdam/server.js:100:28)
    (Use `node --trace-warnings ...` to show where the warning was created)

我使用AWS文档DB连接我的节点应用程序。 我能够使用Shell访问Mongo DB，因此MongoDB很好，并且访问IP白色列表很好。连接中有问题。 请看一下如何修复此

注意：我能够使用shell连接

Answer 1

在 package.json 文件中查看 mongoose 版本。

使用版本 V6+您不应添加 USENEWURLPARSER 和 UseunifiedTopology 选项，因此您应该删除这些选项。 Mongoose将它们设置为 true 默认情况下。

Answer 2

你能尝试一下吗？

mongoose.connect('mongodb://<user>:<pass>@cnox-beta-document-db.cluster-cvzxy5kwx8pn.us-west-2.docdb.amazonaws.com:27017/cnox?replicaSet=rs0&readPreference=secondaryPreferred&retryWrites=false', {
  ssl: true,
  sslValidate: true,
  sslCA: `path_to/rds-combined-ca-bundle.pem`
});

参考。

PS：您可能需要从最初问题中删除凭据。