AWS Lambda

This is part of a blog series giving a high level overview of the different services examined on the AWS Solution Architect Associate exam, to view the whole series click here.

Lambda Summary

• Lambda is a serverless compute service.

• It takes care of provisioning/managing the services that you use to run your code

• You don’t have to worry about OS or scaling

• Allows you to run code for nearly any type of application or backend service

• Can write Lambda functions in a range of different languages e.g. Node.js, Python, Go etc.

• Can be used as an event driven service — e.g. can trigger from another service.

• Can be a compute service to run code in response to an HTTP Request using API Gateway.

• Pay for number of requests (first million free) and also pay for the duration of code running.

• As invocations increase, the Lambda functions scales automatically.