MongoDB C#.NET Connection String Format

Question

I am trying to connect to a MongoDB with my .NET Core 2 controller and I am getting the following error:

MongoDB.Driver.MongoConfigurationException: The connection string 'mongodb://@myapp-a1yri.mongodb.net' is not valid.

I am trying to initialize a MongoClient using the connection string, but I am not sure how to format the connection string and the MongoDB documentation doesn't have anything examples for .NET in it.

This is my current connection string attempt: var client = new MongoClient("mongodb://@myapp-a1yri.mongodb.net");

I am sure it is just simple syntax.

I appreciate the help

Why is there an @ sign in connection string? Also you may try adding the port in the connection string. — imlokesh
– imlokesh, Commented Feb 13, 2018 at 5:49
See also: docs.mongodb.com/manual/reference/connection-string — Corak
– Corak, Commented Feb 13, 2018 at 5:52
@Corak the only parameter it says is required is the host, that's all I need, correct? Where do I find what the exact entry for the host is? — blubberbo
– blubberbo, Commented Feb 13, 2018 at 5:54
@imlokesh I am not sure, I saw that link somewhere in my CP so I copy and pasted it — blubberbo
– blubberbo, Commented Feb 13, 2018 at 5:54
@blubberbo - shouldn't you know where you host the DB. Also, the @ seems to be the end of the username:password@ parameters which you are missing (if needed). Just copy/paste something from somewhere rarely works exactly as one intends. — Corak
– Corak, Commented Feb 13, 2018 at 6:00

Sadaqat · Accepted Answer · 2018-02-13 14:04:25Z

3

I think your @ sign is causing the problem. Please remove the @ sign from connection string and then try.

var client = new MongoClient("mongodb://myapp-a1yri.mongodb.net")

As I am using without @ sign and it is working fine.

answered Feb 13, 2018 at 14:04

Sadaqat

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1 Comment

blubberbo Over a year ago

Thanks for the information! It got further now, although now I am getting:

An exceptionoccurred while opening a connection to the server. ---> System.Net.Internals.SocketExceptionFactory+ExtendedSocketException: Device not configured

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