http://www.eq8.eu/tils/40-connect-ruby-on-rails-app-to-azure-cosmos-db-with-mongoid-gem

Cosmos DB is product from Microsoft Azure (with some similarities to AWS Dynamo DB ) …Cosmos supports several types of API to communicate https://docs.microsoft.com/en-us/azure/cosmos-db/ but the nice thing for Rails developers is that you can just use Mongo API => use Mongo Mapper or Mongoid . But getting the connection on was bit tricky, that’s why this TIL note