Serverless pattern: Call me, "Maybe"

Kinesis allows better control concurrency what is more important for RDS 

Practical example: Serverless Airline

 

Serverless pattern "cherry-pick"

This pattern allows splitting an object between different storages. For example, some properties are indexed in the ElasticSearch, and the rest of the object is in the DynamoDB.

Serverless pattern "REST"

AWS Secrets Manager and AWS X-Ray services are optional. Also as an alternative for  AWS Secrets Manager, there is a possibility to use AWS KMS to encrypt/decrypt values or to inject Parameter Store values into a cloud formation config and expose them as environment variables for lambdas.

AWS operational responsibility model

Services on the right side require less configuration and simpler to start to use