Queries Aurora for new payroll runs and contractor payments, sends
formatted Slack message with gross pay breakdown and total bank
withdrawal amount. Runs weekdays at 2pm ET, tracks notified payrolls
in DynamoDB to avoid duplicates.
Capture response headers, body, and transactionId on every check-issue
API call; persist as boa_txn#<ts>#<action> records with 90-day TTL.
Add "Recent BoA Submissions" section to App Home showing the last 10
with click-to-copy transactionId.
Motivation: BoA support asked for a transactionId from a past
successful call and we had no way to recover it from CloudWatch
summary logs alone.
Also adds simulate-csv.cjs (dry-run preview) and stampli-uploader.sh
(launchd-invoked S3 uploader), and gitignores debug artifacts.
- VPC with NAT Gateway for static outbound IP (52.86.95.107) for BoA API
- Payments stored as individual DynamoDB items keyed by check number
- Slack bot token fetched from SSM at runtime instead of CF parameter
- Slack Lambda scans payment items instead of reading single blob
Two Lambda functions:
- processPaymentCsv: S3 trigger, parses CSV, stores dashboard in DynamoDB
- slackAppHome: API Gateway endpoint for Slack events, publishes Home tab view
