aws lambda
create-function
aws lambda create-function \
--function-name "ddbreplica_lambda" \
--zip-file "fileb://ddbreplica_lambda.zip" \
--handler "ddbreplica_lambda.lambda_handler" \
--timeout "60" \
--runtime "python3.7" \
--description "Sample lambda function for dynamodb streams" \
--role $(cat ~/workshop/ddb-replication-role-arn.txt)