Back

Technologies:

javascriptjavascript
avatar
Tolerim
a day ago

How come my JavaScript isn't connecting to my MongoDB server?

The given code is attempting to connect to a MongoDB server but is encountering an error, resulting in a "MongoServerSelectionError". The error message suggests that the connection is being refused on the "localhost" address port 27017. The error does not appear to be with the server as it works well while using Python. However, it is not working with JS. How can I resolve this issue and eliminate the error message displaying in the terminal?
Answers(1)
avatar
Tolerim
a day ago
Verified Answer
It seems the issue is with connecting to the MongoDB server using JavaScript. The error message suggests that the server is not running or is not accessible at the specified URL: mongodb://localhost:27017. Here are some steps you can try to resolve the issue: 1. Make sure that the MongoDB server is running and is accessible from your machine. You can check this by opening a terminal or command prompt and running the command mongo to start the MongoDB shell. If you are able to connect to the shell, the server is running and accessible. 2. Make sure that the MongoDB driver is installed and up-to-date. You can check this by running the command npm ls mongodb to see if the driver is installed in your project and what version it is. 3. Check the connection URL in your code. The URL should be in the format mongodb://host:port, where host is the hostname or IP address of the MongoDB server, and port is the port number that the MongoDB server is listening on (usually 27017). 4. If the MongoDB server is running on the same machine as your application, you can use localhost or 127.0.0.1 as the hostname. If the server is running on a remote machine, you should use that machine's hostname or IP address instead. 5. If you are running the server on a non-standard port, you will need to specify the port number in the connection URL. For example, if the server is running on port 27018, your connection URL would be mongodb://localhost:27018. 6. If the server requires authentication, you will need to include the username and password in the connection URL. For example, mongodb://username:[email protected]:27017. 7. Make sure that you are handling errors correctly in your code. The error message you provided suggests that there is an issue with the server or network connection, so you should add appropriate error handling to your code to handle these types of errors. Hopefully, these steps will help you resolve the issue and connect to your MongoDB server successfully using JavaScript.
;