What are AWS Lambda and API Gateway
AWS Lambda lets you run your code without provisioning or managing any servers. This gives you a completely serverless architecture with little to no effort on maintenance.
Amazon API Gateway is a fully managed service for managing your APIs. In order for your Lambda to run, it will need a trigger event. AWS allows you to attach multiple different event sources, like SQS, DynamoDB Streams, but in this article, I will focus on API Gateway.