String connection for mongoDB using mongoose with nodeJS

Question

Do you why i can't log in with a connetion string like this: mongodb://root:*****@localhost:27017/Database But, i can log in with a one like this: mongodb://root:*****@localhost:27017/ I had an "authentication failed"

Also, i can log in like that: mongodb://root:*****@localhost:27017/admin

I don't know where i can looking for a solution.

Thank you for your help

I've tried with a database with a name in lowercase but nothing works.

See this one: stackoverflow.com/questions/63754742/…

Wernfried Domscheit
– Wernfried Domscheit

2023-02-10 22:33:28 +00:00
Commented Feb 10, 2023 at 22:33 — Wernfried Domscheit
– Wernfried Domscheit, Commented Feb 10, 2023 at 22:33

ray · Accepted Answer · 2023-02-10 21:05:51Z

1

MongoDB uses admin DB for authentication and authorization purposes.

From official MongoDB document on Connection URI,

If specified, the client will attempt to authenticate the user to the authSource. If authSource is unspecified, the client will attempt to authenticate the user to the defaultauthdb. And if the defaultauthdb is unspecified, to the admin database.

As you are providing username:password@, you are implying the usage of defaultauthdb.

mongodb://root:*****@localhost:27017/admin works because you specified admin as the defaultauthdb
mongodb://root:*****@localhost:27017/ works because defaultauthdb is unspecified. So it is referred to the admin database

mongodb://root:*****@localhost:27017/Database does not work because you are using database other than admin db to perform the auth.

answered Feb 10, 2023 at 21:05

ray

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