error MongoServerSelectionError: connect ECONNREFUSED ::1:27017 about complete-mongodb HOT 3 OPEN

Found the answer in youtube comment section.

use for your connection string in db.js
MongoClient.connect('mongodb://127.0.0.1:27017/bookstore')

from complete-mongodb.

I faced the same error .By using the following code the error solved.
const MongoClient = require('mongodb').MongoClient;

const uri = 'mongodb://127.0.0.1:27017/directConnection=true&serverSelectionTimeoutMS=20000'
const client = new MongoClient(uri, { useNewUrlParser: true, useUnifiedTopology: true });
client.connect(err => {
const collection = client.db("BookStore").collection("Author");
// perform actions on the collection object
client.close();
});

from complete-mongodb.

Might be late but this helped me:

instead of writing URL as:
url = "mongodb://127.0.0.1:27017/books"

try:
url = "mongodb://0.0.0.0:27017/books"

From this thread: https://stackoverflow.com/questions/46523321/mongoerror-connect-econnrefused-127-0-0-127017

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