Per the AWS Lambda runtimes documentation the following: Node.js, Python, Java, .Net, Go.

The MongoDB Atlas documentation contains a Manage Connections with AWS Lambda page that is currently linked to directly from:

• C#: <missing>
• Go: https://www.mongodb.com/docs/drivers/go/current/fundamentals/
• Java: <missing>
• Node.js: https://www.mongodb.com/docs/drivers/node/current/fundamentals/connection/
• Python: <missing>
• Ruby: <missing>

The appropriate page to include this link would likely be:

• Ruby: https://www.mongodb.com/docs/ruby-driver/current/reference/create-client/