Node.Js MongoParseError URI malformed, cannot be parsed-CodePudding

While I run it on my local computer and it doesn't get any problems, I encounter this error when I deploy it to Heroku. I did not fully understand the reason.

MongoParseError URI malformed, cannot be parsed

I just get this on Heroku. Also, my file on the server.js side is as follows.

const dotenv = require("dotenv");
dotenv.config({ path: "./.env" });
const app = require("./app");



const DB = process.env.DATABASE.replace(
  "<PASSWORD>",
  process.env.DATABASE_PASSWORD
);

console.log(DB);

mongoose
  .connect(DB, {
    auth: {
      user: process.env.MONGO_DB_USER,
      password: process.env.MONGO_DB_PASSWORD,
    },
    useNewUrlParser: true,
    useCreateIndex: true,
    useFindAndModify: false,
  })
  .then(() => console.log("DB connection successful!"));

"mongoose": "^5.13.14", "mongoose-intl": "^3.3.0", "dotenv": "^16.0.3",

My .env file has MongoDB URLs and passwords. That's why I don't share. Works great locally too. but there are problems in deployment.

CodePudding user response：

check your server dotenv value.

In a cloud environment the .env file may be different.

can you check local process.env and Heroku's process.env?

CodePudding user response：

It seems that there is an error in your mongoDB URI For now i don't know what your URI is which is .env file but i can suggest you a few things

1- Firstly you need to replace the first two lines of your code with this one

require('dotenv').config();

2- In your .env file you need to create a variable named

MONGODB_URI=mongodb srv://[username:password@]host[/[database][?options]]

whatever your password and username is just fill in that here in URI

Finally you need to change the connection string and your file should look like this

require('dotenv').config();
const app = require("./app");

mongoose
      .connect(process.env.MONGODB_URI)
      .then(() => {
        console.log("Connection Successfull");
      })
      .catch((error) => {
        console.log("Connection Unsuccessfull");
      });