JavaScript Cloud Native Development Cookbook

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/ch8/backpressure-ratelimit --path cncb-backpressure-ratelimit

2. Navigate to the cncb-backpressure-ratelimit directory with cd cncb-backpressure-ratelimit.
3. Review the file named serverless.yml with the following content:

service: cncb-backpressure-ratelimit...functions:  listener:    handler: handler.listener    timeout: 240 # headroom for retries    events:      - stream:          batchSize: 1000 # / (timeout / 2) < write capacity          ...    environment:      WRITE_CAPACITY_UNITS: 10      SHARD_COUNT: 1...resources:  Resources:    Table:      Type: AWS::DynamoDB::Table      Properties:        ...        ProvisionedThroughput:          ...          WriteCapacityUnits