Each of the application components is decoupled and

deployed and run independently.

▪ AWS Lambda-initiated functions is all you need to

build a microservice.

▪ A microservices environment can introduce

▪ repeated overhead for create each new microservice,

▪ problems optimizing server usage,

▪ complexity of running multiple versions of microservices,

▪ client-side code requirements to integrate with many services.

▪ Serverless microservices pattern reduces the barrier

for the creation of each subsequent microservice

▪ Optimizing server utilization is no longer relevant with

this pattern. 

https://docs.aws.amazon.com/whitepapers/latest/serverless-multi-tier-architectures-api-gateway-lambda/microservices-with-lambda.html