无法通过Node.js MongoDB驱动连接Cosmos DB模拟器

问题背景 #

• 此前同配置的复杂应用可正常连接本地Cosmos DB模拟器，现在新建测试应用（使用MongoDB驱动）连接失败，官方CosmosClient示例也报类似错误
• 模拟器启动命令："C:\Program Files\Azure Cosmos DB Emulator\Microsoft.Azure.Cosmos.Emulator.exe" /EnableMongoDbEndpoint
• 管理面板可正常访问：https://localhost:8081/_explorer/index.html
• Studio 3T for MongoDB可成功连接到localhost@localhost:10255

已尝试的配置与操作 #

1. 按官方说明导出模拟器证书至项目根目录，通过以下代码获取证书路径：

   const certFilePath = path.resolve(__dirname, '../', 'documentdbemulatorcert.cer');
   

2. 两种连接方式均尝试：
   • 方式1：使用管理面板复制的Mongo连接字符串

     const connectOptions = {
       useNewUrlParser: true,
       useUnifiedTopology: true,
       ssl: true,
       sslValidate: true,
       sslCA: certFilePath,
     };
     const client = new MongoClient(MONGODB_CONNECTION_STRING, connectOptions);
     

   • 方式2：使用Mongo URI、用户名和未编码密码（均来自管理面板）

     const connectOptions = {
       auth: {
         username: MONGODB_AUTH_USERNAME,
         password: MONGODB_AUTH_PASSWORD_NOT_ENCODED,
       },
       useNewUrlParser: true,
       useUnifiedTopology: true,
       ssl: true,
       sslValidate: true,
       sslCA: certFilePath,
     };
     const client = new MongoClient(MONGODB_URI, connectOptions);
     

3. 通用连接代码：

   try {
     await client.connect();
     console.log('Connection to server successful');
   } catch (error) {
     console.error('Connection to server failed:', error);
   }
   

4. 其他调试尝试：
   • 移除useNewUrlParser、useUnifiedTopology、ssl等所有配置参数，无效
   • 设置NODE_TLS_REJECT_UNAUTHORIZED=0运行应用，仅增加安全警告，错误依旧
   • 使用Studio 3T的连接字符串，同样连接失败

报错信息 #

MongoDB驱动报错 #

Connection to server failed: MongoServerSelectionError: connect ECONNREFUSED ::1:10255
    at Timeout._onTimeout (...my-project-root...\node_modules\mongodb\lib\sdam\topology.js:292:38)
    at listOnTimeout (node:internal/timers:564:17)
    at process.processTimers (node:internal/timers:507:7) {
  reason: TopologyDescription {
    type: 'Unknown',
    servers: Map(1) { 'localhost:10255' => [ServerDescription] },
    stale: false,
    compatible: true,
    heartbeatFrequencyMS: 10000,
    localThresholdMS: 15,
    setName: null,
    maxElectionId: null,
    maxSetVersion: null,
    commonWireVersion: 0,
    logicalSessionTimeoutMinutes: null
  },
  code: undefined,
  [Symbol(errorLabels)]: Set(0) {}
}

CosmosClient官方示例报错 #

Completed with error {"message":"request to https://localhost:8081/ failed, reason: connect ECONNREFUSED ::1:8081","type":"system","errno":"ECONNREFUSED","code":"ECONNREFUSED","headers":{"x-ms-throttle-retry-count":0,"x-ms-throttle-retry-wait-time-ms":0}}

环境信息 #

• Windows 11 x64
• Node.js 19.1.0
• mongodb驱动4.12.1
• Cosmos DB模拟器2.14.9.0

内容的提问来源于stack exchange，提问作者superjos