Implementing round-robin replication

Not all of the databases in our polyglot persistence architecture will support turnkey regional replication as we have with AWS DynamoDB, yet we still need to replicate their data to multiple regions to improve latency and support regional failover. This recipe demonstrates how to use AWS S3 as a surrogate to add regional replication to any database.

How to do it...

1. Create the project from the following template:

$ sls create --template-url https://github.com/danteinc/js-cloud-native-cookbook/tree/master/ch10/round-robin-replication --path cncb-round-robin-replication

2. Navigate to the cncb-round-robin-replication directory with cd cncb-round-robin-replication.
3. Review the file named serverless...