MongoDB collection hyphenated name

Question

I'm using Node.js program to insert data into a MongoDB database. I have inserted data into a collection named "repl-failOver".

var mongoClient = require("mongodb").MongoClient; mongoClient.connect("mongodb://localhost:30002/test", function(err, db) {     if (err) throw err;     db.collection("repl-failOver").insert( { "documentNumber" : document++}, function (err, doc) {         if (err) throw err;         console.log(doc);     });     db.close(); }); 

When I use the Mongo shell and list down the collections in the database using show collections I am able to see the collection "repl-failOver".

How do I run a find command from the mongo shell for this collection?

Answer 1

Use this syntax:

db['repl-failOver'].find({}) 

or

db.getCollection('repl-failOver').find({}) 

You can find more information in the Executing Queries section of the manual:

If the mongo shell does not accept the name of the collection, for instance if the name contains a space, hyphen, or starts with a number, you can use an alternate syntax to refer to the collection, as in the following:

db["3test"].find()  db.getCollection("3test").find() 

Answer 2

You are getting this error from accessing collections with specific characters (-, _, ). I explained the workaround here, but basically all you need is to do

db.getCollection("repl-failOver").insert(...)