javascript - nodejs - Mongoose 不会因 Uri 损坏而引发错误

Question

我的index.ts 文件中有以下代码:

import mongoose from 'mongoose'

const DBUri = "blah";

const connectDatabase = (): void => {
    try {
        mongoose.connect(DBUri, {useNewUrlParser: true}, () => {
            console.log('mongoose connected.')
        })
    } catch (e) {
        console.log(e);
        throw e
    }
};

connectDatabase()

当我编译成js并执行文件时，我将mongooseconnected登录到控制台。但我希望抛出一个错误(因为 DBUri 已损坏)。

我做错了什么？

Answer 1

您会通过这些事件发现错误或断开连接

try {
      mongoose.connect(DBUri, {useNewUrlParser: true}, () => {
          console.log('mongoose connected.')
      })

       mongoose.connection.on('disconnected', () => { console.log("Disconnect")  });

       mongoose.connection.on('error', (error) => {
       console.error('[error]: ', error);
      });
    } catch (e) {
    console.log(e);
    throw e
   }