How can I select the specific database in MongoDB on App Platform?

So basically I created a cluster mongodb database and then I attach the database into my app.

In the Environment Variables I notice that was added CA_CERT=${db-mongodb-sgp1.CA_CERT} and DATABASE_URL=${db-mongodb-sgp1.DATABASE_URL}

But the problem is that DATABASE_URL it’s connection string pointing to the admin database, and I want to use another database app.


There is any way to connect to app database and keep using admin as the authSource?

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Jon Friesen
DigitalOcean Employee
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November 2, 2022
Accepted Answer

👋 @ridermansb

I think the best solution right now is to recreate the connection string using URL parameters, for example:


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