s3_event_trigger_serverless.yaml

functions:
 lambda:
   handler: index.handler
   memorySize: 512
   timeout: 60
   layers:
     - {Ref: PhotoParserLibsLambdaLayer}
   events:
     - s3:
         bucket: your-temporary-bucket-name
         event: s3:ObjectCreated:*
         rules:
           - suffix: .jpg
         existing: true
     - s3:
         bucket: your-temporary-bucket-name
         event: s3:ObjectCreated:*
         rules:
           - suffix: .jpeg
         existing: true