如何确认是否已为MongoDB for ReactJS + NodeJS Express创建数据库？

Question

I am following a tutorial and got the following set up:

MongoClient.connect('mongodb://localhost/newdatabase', function(err, dbConnection) {
  db = dbConnection;
  var server = app.listen(3000, function() {
      var port = server.address().port;
      console.log("Started server at port", port);
  });
});

Just by defining the URL with the name of the database, does the database get created? Or would I have to go on the terminal and manually create it? How can I check if /newdatabase has been created?

Also, how can I access the URL on the browser? Why aren't they defining the port number after the //localhost ?

Thank you!

Answer 1

MongoDB will create the database on the fly, as soon as you interact with it -- try adding a collection / document to it.

As for the port, it's probably using the default port ( 27017 ) since you aren't providing one. You wouldn't typically connect to mongo through your browser, though. Attempting that results in this message:

It looks like you are trying to access MongoDB over HTTP on the native driver port.