The upgrade of node-mongodb version caused mongodb.open to report an error, which returned a 500th error.

Last year, the title owner used node- express-mongodb to develop a simple internal website of the company. Yesterday, he upgraded the npm package, which led to mongodb.open reporting an error directly here, returning a 500error, and without any error prompt. Later, he repeatedly looked for the problem and finally located the problem on the node-mongodb version. Before the upgrade, the node-mongodb version was 1.4.1, and after the upgrade, it was 3.percent. Finally, the version was downgraded, and sure enough, the 500 problem was solved.
I would like to ask you if you have encountered the same problem and how to solve this problem in addition to demotion. Thank you in advance!

Mongodb express node.js

Aug.18,2021

learn about version number naming conventions. Generally speaking, large version number (first) upgrades are not backward compatible. You skipped two versions here, so.
doesn't see the specific code or error message, and doesn't know what the problem is. It is recommended that you check the new API document yourself.

Previous: On the realization of aliasing effect by CSS

Next: How to determine the number of digits entered by the user?

What is the difference between mongoose's error report: timed out and socket closed? Under what circumstances do they appear?
recently, an interface for reading data has been found to take too long to return in the production environment. Project uses nodejs + mongodb Development dependency: questions such as title: what is the difference between: timed out and so...

Mongoose mongodb express node.js

Mar.02,2021
How to use Ajax to get the data in the back-end interface in the front-end, and then I will handle it myself.
directory structure: main.js: comment.js failed to get the data routed from the backend. I just want to extract the content data from the data in the backend and process it myself, otherwise the data will have no spaces and line breaks ...

Mongodb express node.js

Mar.04,2021
How do MongoDB nested queries return all data?
id! this is my current practice. The problem is that the last res.send () only deals with the first traversal. If you put res.send () outside the traversal, the value of goodsList does not change. Is there a big answer? ...

Mongodb express node.js

Mar.08,2021
Localhost is suddenly unreachable?
mongodb, is used in node and listens to the service on the local port, which has been accessible normally until now, but has suddenly been inaccessible. Can t find out what the problem is connect mongoose mongoose.connect( mongodb: localhost cour...

Mongodb express node.js

Aug.07,2021
Express always reports an error when using express-validator verification. Ask for advice.
server.js const express = require( express ); const expressValidator = require( express-validator ); const mongoose = require( mongoose ); const bodyParser = require( body-parser ); const app = express(); const port = 5846; ** * * cons...

Mongodb express node.js

Mar.02,2022

MySQL Query : SELECT * FROM `codeshelper`.`v9_news` WHERE status=99 AND catid='6' ORDER BY rand() LIMIT 5
MySQL Error : Disk full (/tmp/#sql-temptable-64f5-1b3a8d7-e771.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
MySQL Errno : 1021
Message : Disk full (/tmp/#sql-temptable-64f5-1b3a8d7-e771.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
Need Help?