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Connect your database (MongoDB)

JavaScript
MongoDB

To connect your database, you need to set the url field of the datasource block in your Prisma schema to your database connection URL:

prisma/schema.prisma
datasource db {
  provider = "mongodb"
  url      = env("DATABASE_URL")
}

In this case, the url is set via an environment variable which is defined in .env (the example uses a MongoDB Atlas URL):

.env
DATABASE_URL="mongodb+srv://test:test@cluster0.ns1yp.mongodb.net/myFirstDatabase"

You now need to adjust the connection URL to point to your own database.

The format of the connection URL for your database depends on the database you use. For MongoDB, it looks as follows (the parts spelled all-uppercased are placeholders for your specific connection details):

mongodb://USERNAME:PASSWORD@HOST:PORT/DATABASE

Here's a short explanation of each component:

  • USERNAME: The name of your database user
  • PASSWORD: The password for your database user
  • HOST: The host where a mongod (or mongos) instance is running
  • PORT: The port where your database server is running (typically 27017 for MongoDB)
  • DATABASE: The name of the database. Note that if you're using MongoDB Atlas, you need to manually append the database name to the connection URL because the environment link from MongoDB Atlas doesn't contain it.

Troubleshooting​

Error in connector: SCRAM failure: Authentication failed.​

If you see the Error in connector: SCRAM failure: Authentication failed. error message, you can specify the source database for the authentication by adding ?authSource=admin to the end of the connection string.

Raw query failed. Error code 8000 (AtlasError): empty database name not allowed.​

If you see the Raw query failed. Code: unknown. Message: Kind: Command failed: Error code 8000 (AtlasError): empty database name not allowed. error message, be sure to append the database name to the database URL. You can find more info in this GitHub issue.