Unable to connect to mongodb Atlas

[playerx]

Hey, it works with local db but fails with mongodb atlas connection string, I'm using the syntax like this:

await client.connect(
    "mongodb+srv://user:[email protected]/db?authMechanism=SCRAM-SHA-1"
);

// also tried this

await client.connect(
    "mongodb+srv://user:[email protected]/db?retryWrites=true&w=majority&authMechanism=SCRAM-SHA-1"
);

// and this

await client.connect(
    "mongodb+srv://user:[email protected]/db?retryWrites=true&w=majority"
);

It always fails here: https://deno.land/x/[email protected]/src/client.ts#L41 with error:

{
"ok":0,
"errmsg":"Authentication failed.",
"code":18,
"codeName":"AuthenticationFailed",
"$clusterTime":{"clusterTime":{"$timestamp":"7043035952079437828"},"signature":{"hash":"z8hkCMby/OYpTnJXHNS7+rZfBvI=","keyId":{"high":1625418439,"low":1,"unsigned":false}}},
"operationTime":{"$timestamp":"7043035952079437828"}
}

Can you share if it's a known issue or do I need to provide some additional params?

[erfanium]

https://github.com/erfanium/deno-deploy-mongo this demo uses MongoDB Atlas for its database with no problem. do you use any non-default options when you creating a database?

This issue needs a reproduction steps for me

[playerx]

I've a simple script like this:

import { MongoClient } from "https://deno.land/x/[email protected]/mod.ts";

const client = new MongoClient();

const db = await client.connect(
  "mongodb+srv://USER:[email protected]/jok?authMechanism=SCRAM-SHA-1"
);

const names = await db.listCollectionNames();

console.log(names);

and it fails, I've tried the same script on different mongo atlas clusters and had the same error.

Can you share the structure of the connection string you are using? Maybe I miss something there

[playerx]

Ah it seems the database name in the connection string isn't supported for now. It started working once I've updated connection string like this:

 "mongodb+srv://USER:[email protected]/?authMechanism=SCRAM-SHA-1"

[erfanium]

are you sure? maybe you should use authSource property

[playerx]

I've tried calling parse function for the connectionString I was using and here is the result:

Input:

 "mongodb+srv://USER:[email protected]/jok?authMechanism=SCRAM-SHA-1"

Output:

{
  servers: [
    { host: "jok-prod-shard-00-01.RAND.mongodb.net.", port: 27017 },
    { host: "jok-prod-shard-00-02.RAND.mongodb.net.", port: 27017 },
    { host: "jok-prod-shard-00-00.RAND.mongodb.net.", port: 27017 }
  ],
  authSource: "admin",
  replicaSet: "atlas-132kf5-shard-0",
  db: "jok",
  credential: {
    username: "USER",
    password: "PASSWORD",
    db: "jok",
    mechanism: "SCRAM-SHA-1"
  },
  compression: [],
  tls: true,
  retryWrites: true
}

As you can see it changed credentials database as well and that's the issue here I think

[erfanium]

i think that's an expected behavior, just use something like: mongodb+srv://USER:[email protected]/jok?authMechanism=SCRAM-SHA-1&authSource=admin

[playerx]

The reason why I think it's an issue is that the connection string I used works properly with nodejs mongo (official) driver and many users will use the same connections string and had the same issue.

I think credential.db should not be changed unless there will be provided authSource explicitly.