CODEWITHSUNDEEP
mongodbmongoosedeploymentenvironment-variablesdigital-ocean
HKS
HKS

Reputation: 983

MongoDB connection error in Digital Ocean droplet

I am in the process of deploying my MERN app to a Digital Ocean droplet (Ubuntu 20.04 server).

I have cloned my GitHub repo to the droplet, installed the dependencies using npm install. Next, when I am starting the server using npm start, I get the following error: enter image description here

The error essentially says that the first parameter to mongoose.connect() is undefined and must be a string. However, everything works fine in my local machine and when I console.log process.env.MONGO_URI, I get the connection string.

server/config/db.js

const mongoose = require("mongoose");
const colors = require("colors");
const dotenv = require("dotenv");

dotenv.config();

const connectDB = async () => {
  try {
    const conn = await mongoose.connect(process.env.MONGO_URI, {
      useNewUrlParser: true,
      useCreateIndex: true,
      useUnifiedTopology: true,
    });
    console.log(`MongoDB connected: ${conn.connection.host}`.cyan.bold);
  } catch (error) {
    console.error(`Error: ${error.message}`.red.bold.underline);
    process.exit(1);
  }
};
2;
module.exports = connectDB;

Why am I getting this error while starting the server in my Digital Ocean droplet?

Upvotes: 0

Views: 968

Answers (1)

Tushar Gupta - curioustushar
Tushar Gupta - curioustushar

Reputation: 57095

dotenv doesn't load system variables.

Create .env file with

MONGO_URI=XXXXXXX

https://github.com/motdotla/dotenv#usage

Create a .env file in the root directory of your project. Add environment-specific variables on new lines in the form of NAME=VALUE. For example:

DB_HOST=localhost
DB_USER=root
DB_PASS=s1mpl3

Upvotes: 1

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