Serverless dataplatform - Ingress API TODO References https://docs.aws.amazon.com/apigateway/latest/developerguide/integrating-api-with-aws-services-s3.html https://docs.aws.amazon.com/apigateway/latest/developerguide/api-gateway-method-settings-method-request.html https://docs.aws.amazon.com/apigateway/latest/developerguide/api-gateway-mapping-template-reference.html https://docs.aws.amazon.com/AmazonS3/latest/API/API_PutObject.html https://medium.com/lego-engineering/functionless-s3-integration-inside-a-serverless-casserole-part-1-b300085eea78 https://docs.aws.amazon.com/apigateway/latest/developerguide/apigateway-override-request-response-parameters.html https://docs.aws.amazon.com/apigateway/latest/developerguide/api-gateway-mapping-template-reference.html#context-variable-reference