Automating a nutrition coach's Google Sheet with Lambda, Withings, Cronometer, and Zepp
A serverless pipeline that pulls weight from Withings, macros from Cronometer's unpublished GWT-RPC endpoints, and steps + sleep from Zepp's own cloud API, then writes all of it into a coach's spreadsheet daily — including an account lockout and the quiet API overhaul that explained it.
Stack: EventBridge → Lambda → SSM → Sheets API → SES
2026-07-23
Updated 2026-08-02