Serverless: Lambda + SQS to handle high load of DB writes

lambda-sqs.yml

service: myQueue
app: myQueue
org: dennisko
provider:
  name: aws
  runtime: nodejs12.x
  stage: dev
  region: "${env:region}"
  apiGateway:
    minimumCompressionSize: 1024
  iamRoleStatements:
    - Effect: Allow
      Action:
        - sqs:SendMessage
        - sqs:GetQueueUrl
      Resource: arn:aws:sqs:${self:provider.region}:xxx:*
    - Effect: Allow
      Action:
        - sqs:ListQueues
      Resource: arn:aws:sqs:${self:provider.region}:xxx:*
plugins:
  - serverless-webpack
  - serverless-offline
  - serverless-dotenv-plugin
custom:
  webpack:
    webpackConfig: "./webpack.config.js"
    packager: yarn
    includeModules:
      forceExclude:
        - aws-sdk
functions:
  receiver:
    handler: src/receiver.handler
    events:
      - http:
          method: post
          path: receive
  recorder:
    handler: src/recorder.handler
    events:
      - sqs:
          arn: arn:aws:sqs:${self:provider.region}:xxx:MyQueue
          batchSize: 1
resources:
  Resources:
    MyQueue:
      Type: AWS::SQS::Queue
      Properties:
        QueueName: MyQueue
        VisibilityTimeout: 30
        MessageRetentionPeriod: 1800
        RedrivePolicy:
          deadLetterTargetArn:
            Fn::GetAtt:
              - MyDLQ
              - Arn
          maxReceiveCount: 1
    MyDLQ:
      Type: AWS::SQS::Queue
      Properties:
        QueueName: MyDLQ
        MessageRetentionPeriod: 1209600