[jakecraige]

The main app powering coinbase.com, the “monorail”, is a Rails app backed by MongoDB. It’s typically what’s being referred to when breaking out microservices.

Historically most other services were Rails/Sinatra with Postgres. These days there’s a lot more Golang being used for new services.

There’s also some services that are serverless, using Lambda and DynamoDB but these are a minority.

[joelbluminator]

Thanks. But is Ruby considered something deprecated? I'm mainly a Ruby guy and want to keep it that way is why I'm asking.