gobank-workflow

Banking workflow engine -- idempotent daily processing, business date management, and persistent run tracking.

Pages

• WASM Demo -- interactive simulation of daily workflow processing with timing chart
• Changelog
• Roadmap

Overview

gobank-workflow is the timing and orchestration layer for the gobank ecosystem. It wraps gobank-products' simulation engine with:

• Idempotent daily processing -- Runner.RunDaily(date) is a no-op if already completed
• Business date management -- decouples processing date from calendar date
• Persistent run tracking -- SQL-backed store records every run and per-account step results
• Catch-up -- Runner.CatchUp(from, to) fills gaps from the last completed date

Architecture

Runner.RunDaily(date)
  -> Store.FindRun(daily_update, date)  -- idempotency check
  -> if completed: return nil           -- no-op
  -> Store.CreateRun(pending)
  -> sim.AdvanceToDate(date)            -- gobank-products handles business logic
  -> Observer writes StepResults
  -> Store.CompleteRun()

Demo

The WASM demo runs a simulated daily workflow with 1,000 Easy Access savings accounts (3.5% annual rate, 10,000.00 each). Click the buttons to advance time and observe processing duration per day.