Trouble connecting to local mongo db since updating to mongoose 5.x

Question

I've checked around Stack and the Mongoose docs for this, but I can't seem to get it right. As implied in the title everything was fine until i upgraded the packages for mongoose and connect-mongo.

Here's my database.js:

var mongoose = require('mongoose');
var mongodbUri = require('mongodb-uri');

function encodeMongoURI (urlString) {
    if (urlString) {
      var parsed = mongodbUri.parse(urlString)
      urlString = mongodbUri.format(parsed);
    }
    return urlString;
  }


mongoose.connect(encodeMongoURI(process.env.MONGODB_URI) || 'mongodb://localhost:27017/goGradesDB',//specifies goGradesDB as the db to use locally
                 {
    useNewUrlParser: true,
  useUnifiedTopology: true,
  useFindAndModify: false,
  useCreateIndex: true,
}).catch(error => handleError(error));

var db = mongoose.connection;

db.on('error', console.error.bind(console, 'MongoDB connection error:'));


module.exports = db;

After looking over the docs in mongoose and searching this site I've tried the following:

installed the mongodb-uri package to parse the uri (although I'm not sure if that's needed for the local db. I can't get onto my heroku db either, but that's something I'm working with support on.
added the "useNewURLParser", etc. tag.
added the port number into the local db address
added the catch onto the end of mongoose.connect

Despite this I keep getting the following error output in my terminal and the db times out whenever I try to login to the app. Here's the output:

"The server is running on port 3000!
(node:71951) UnhandledPromiseRejectionWarning: MongoParseError: URI malformed, cannot be parsed"

and later,

"(node:71951) UnhandledPromiseRejectionWarning: Unhandled promise rejection. This error originated either by throwing inside of an async function without a catch block, or by rejecting a promise which was not handled with .catch(). (rejection id: 2)
(node:71951) [DEP0018] DeprecationWarning: Unhandled promise rejections are deprecated. In the future, promise rejections that are not handled will terminate the Node.js process with a non-zero exit code."

Any insight would be much appreciated. Thank you!

Trouble connecting to local mongo db since updating to mongoose 5.x

0 Answers0