What is the process for linking my MongoDB database to my laptop?

I recently created a MongoDB account and attempted to connect it to my laptop, but unfortunately I encountered an error during the process.

Below is the code snippet for my Mongoose connection:

mongoose.connect(
  'mongodb+srv://${process.env.MONGO_DB_USER}:${process.env.MONGO_DB_PASSWORD}@cluster0.atfhj.mongodb.net/${process.env.MONGO_DB_DATABASE}?authSource=yourDB&w=1',
    {
        useUnifiedTopology: true,
        useNewUrlParser: true
    }).then(() => {
        console.log("database connected");
    }).catch((err) => console.log(err));
app.use(bodyParser)

Upon connecting, I encountered the following error message:

server started on port 5000
MongoError: Authentication failed.
at MessageStream.messageHandler (C:\Users\JUWONCALEB.DESKTOP-CMA289U\Desktop\UDEMY\ECOMMERCE\backend\node_modules\mongodb\lib\cmap\connection.js:268:20)
at MessageStream.emit (events.js:314:20)
at processIncomingData (C:\Users\JUWONCALEB.DESKTOP-CMA289U\Desktop\UDEMY\ECOMMERCE\backend\node_modules\mongodb\lib\cmap\message_stream.js:144:12)
at MessageStream._write (C:\Users\JUWONCALEB.DESKTOP-CMA289U\Desktop\UDEMY\ECOMMERCE\backend\node_modules\mongodb\lib\cmap\message_stream.js:42:5)
at doWrite (_stream_writable.js:403:12)
at writeOrBuffer (_stream_writable.js:387:5)
at MessageStream.Writable.write (_stream_writable.js:318:11)
at TLSSocket.ondata (_stream_readable.js:719:22)
at TLSSocket.emit (events.js:314:20)
at addChunk (_stream_readable.js:298:12)
at readableAddChunk (_stream_readable.js:273:9)
at TLSSocket.Readable.push (_stream_readable.js:214:10)
at TLSWrap.onStreamRead (internal/stream_base_commons.js:188:23) {
ok: 0,
  code: 8000,
  codeName: 'AtlasError'
}
javascriptmongodbexpressmongoosebody-parser

Answer №1

Make sure to enclose string interpolations with Backticks.

mongoose.connect(
  `mongodb+srv://${process.env.MONGO_DB_USER}:${process.env.MONGO_DB_PASSWORD}@cluster0.atfhj.mongodb.net/${process.env.MONGO_DB_DATABASE}?authSource=yourDB&w=1`,
    {
        useUnifiedTopology: true,
        useNewUrlParser: true
    }).then(() => {
        console.log("connected to database");
    }).catch((err) => console.log(err));
app.use(bodyParser)

Answer №2

It appears that you are using single quotes '' instead of backticks ``. This may have been the cause of the error you encountered. Another possibility is that your environment configuration could be incorrect. Verify if your environment is functioning properly by logging it to the console.

I recommend setting up the entire MongoDB Connection as an environment variable and accessing it without needing to worry about strings.

For example, in your .env file:

DATABASE_CONNECTION=mongodb+srv://the-user:<a href="/cdn-cgi/l/email-protection" class="__cf_email__" data-cfemail="8ffafceafda2ffeefcfcf8e0fdebcfece3fafcfbeafdbfa1eefbe9e7e5a1e2e0e1e8e0bcedbef">[email protected]</a>/your-database?authSource=yourDB&w=1

Then you can simply do this:

mongoose.connect(
  process.env.DATABASE_CONNECTION,
    {
        useUnifiedTopology: true,
        useNewUrlParser: true
    }).then(() => {
        console.log("database connected");
    }).catch((err) => console.log(err));
app.use(bodyParser)

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