Why doesn’t MongoDB connect to localhost?
1MongoNetworkError response: Could not connect to server [localhost:27017] on the first connection [MongoNetworkError: connect ECONNREFUSED 127.0.0.1:27017] asked Jan 5, 2020 in Web Technology by ashely (50.5k points)
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How to connect to a standalone MongoDB instance?
To connect to a standalone MongoDB instance: You can instantiate a MongoClient object without any parameters to connect to a MongoDB instance running on localhost on port 27017: MongoClient mongoClient = new MongoClient();
How do I connect to a replica set in MongoDB?
To connect to a replica set, you must specify one or more members in the create method of MongoClients. MongoDB will automatically discover the parent and children. You can specify the members using a ConnectionString:
How to connect to a sharded MongoDB cluster?
To connect to a sharded cluster, specify the mongos instance(s) in the MongoClient constructor. You can specify the hostname and port (or you can omit the parameters if mongos is running on localhost and port 27017) You can specify the MongoClientURI connection string with your hostnames and ports:
If not, do you have any firewall rules that block access to localhost? That would be a bit weird, but I can’t think of another reason why it wouldn’t work while the LAN IP would. This error could also appear if mongodb was not shut down properly.
Do you have to have mongoose to connect to MongoDB?
To connect with Mongoose, you need to download and require mongoose. When using Mongoose, the connection URL must include the database you are connecting to: This is how you can check if the connection is successful. If you enjoyed this article, please tell a friend!
What to do if MongoDB is not running with journaling?
If it isn’t and wasn’t running journaling, delete the lock file, run repair, and start mongodb again. If you are/were running with journaling enabled, see the relevant Mongo DB docs. Note that they say “If you are running Journaling, you should not do a repair to recover to a consistent state.”
How do I add items to the MongoDB database?
One way to add items to a MongoDB database is through the Mongo Shell. To open Mongo Shell, open another command line window and run mongo. Note: Make sure you keep the mongod window open! You will not be able to interact with Mongo Shell if you close the mongod window.